Calm is a leading meditation and sleep app with 4.1 stars on Android, 4.8 stars on iOS, and 50M+ downloads. Known for celebrity-narrated sleep stories by Cillian Murphy and Bob Ross, plus comprehensive daily meditation programs. While most users love the content, some Android users report recent billing and technical concerns. | A comprehensive AI chatbot assistant with access to multiple advanced models including GPT-4, GPT-4o, and DeepSeek. Features text generation, image creation, mental health support, and language learning capabilities. | |
| Key Features A summary of the most important features offered by each app. |
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| Our Rating Prod Apps's expert review score for each app, based on hands-on testing and research. | 7.3 Winner in this category | 6.5 |
| Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 0 | 0 |
| Total ratings Total number of user ratings received across all supported browsers. | 0 | 0 |
| Average rating Average user rating across all browsers, calculated from available store ratings. | — ⭐ | — ⭐ |
| Entry Level Price The minimum price required to start using the app. "Free" means a free tier is available. | Free | Free |
| Android User rating and stats for the app on Android browser. | ![]() Downloads | ![]() Downloads |
| iOS User rating and stats for the app on iOS browser. | ![]() | ![]() |
| Features Prod Apps's expert score for the 'Features' aspect of each app. | 8.0 Calm's content library is genuinely impressive and sets the standard for meditation apps. The celebrity-narrated sleep stories are the standout feature—falling asleep to Cillian Murphy's voice, Bob Ross painting descriptions, or Rosé's calming narration provides a unique experience users rave about. These aren't just celebrity gimmicks; they're high-quality productions that genuinely help people fall asleep. Outstanding features include:
The library is genuinely extensive, with enough variety that most users find multiple favorites. The quality is consistently high—professional voice work, good production values, and thoughtful content design. Users frequently mention specific favorites like "Painting with Bob Ross" or programs with Tamara Levitt that they return to regularly. The app uses a subscription model, with most content requiring payment. The free version offers limited access, which is standard for premium apps in this category. Some users wish for more free content to evaluate before subscribing, though the free trial provides opportunity to explore the library. A few long-term subscribers mention content updates could be more frequent, though the existing library is large enough that most users have plenty to explore. For daily users who cycle through content quickly, occasional waits for new stories can be noticeable. We're rating features 8.0 out of 10. The celebrity sleep stories, daily programs, and extensive meditation library provide excellent value, making Calm a feature-rich leader in the meditation app category. Winner in this category | 7.5 Chatbot AI offers a range of features that leverage multiple advanced AI models. In addition to its main function of providing AI chat assistance, it provides much more, making it a versatile tool for various AI needs. The app's multi-model approach stands out as its strongest asset, providing access to GPT-4, GPT-4o, Google Gemini, Claude, and DeepSeek all within a single interface. This gives users the flexibility to choose the best AI for their specific needs. Top Features of Chatbot AI 1. Multi-Model AI Access: Chatbot AI excels at providing access to multiple AI models in one place. You can easily switch between GPT-4, GPT-4o, Google Gemini, Claude, and DeepSeek depending on your specific needs. Whether you're writing creative content, seeking technical assistance, or just having casual conversations, you can choose the best model for the job. 2. Text Generation Capabilities: The app excels at creating various types of content, from creative stories and poems to professional emails and technical documents. In our tests, we found the text generation to be quite impressive, especially when using the more advanced models. 3. AI Image Generation: Integration with DALL·E technology enables users to create images from text descriptions, adding a visual dimension to the AI experience. This feature works well, though it can be slow at times and requires a premium subscription. 4. Specialized AI Assistants: The mental health support and fitness coaching features provide targeted assistance for specific life areas. These specialized features add unique value that you won't find in most other AI assistants. 5. Language Learning Tools: The conversational practice and grammar assistance features are valuable for language learners. You can engage in practice conversations and receive helpful grammar tips. 6. Cross-Platform Synchronization: Users can access their conversations and settings across mobile, web, and desktop devices. This makes it easy to continue conversations from wherever you are. However, we identified several limitations that impact the overall feature rating:
That's why we rate the features at 7.5 out of 10. The app offers an impressive range of capabilities and the multi-model approach is genuinely valuable, but the restrictive freemium model and inconsistent performance limit its overall effectiveness. |
| Performance Prod Apps's expert score for the 'Performance' aspect of each app. | 7.5 Calm performs reliably for the vast majority of users across 50+ million downloads and two platforms. The 4.8-star iOS rating and 4.1-star Android rating indicate consistent, stable performance that users depend on nightly. Audio playback is smooth, sleep stories run without interruption, and the app handles background playback well while you sleep. Performance strengths:
The app handles demanding use cases well—playing audio continuously through 7-8 hours of sleep, managing large content libraries, and supporting offline downloads. Users who've used Calm for years mention it working consistently night after night, which demonstrates solid long-term reliability. A small percentage of users report occasional audio stopping during sleep sessions or rare app crashes. These issues seem device or configuration-specific rather than widespread problems, as the majority of users don't mention performance concerns. Some users note the splash screen takes a moment to dismiss, though this is designed as a brief mindfulness moment rather than a technical delay. Load times are generally good, with content starting quickly after selection. The app's size and resource usage are reasonable for the extensive content library it manages. Updates are regular, suggesting active maintenance and performance optimization. For an app with 50M+ downloads used nightly by millions, achieving 4.8 stars on iOS demonstrates exceptional performance reliability. The vast majority of users experience smooth, consistent operation exactly when they need it most—during meditation and sleep. We're rating performance 7.5 out of 10. Calm delivers reliable, stable performance for the overwhelming majority of users, with consistent playback and efficient resource usage. The high ratings across millions of users demonstrate performance excellence at scale. Winner in this category | 6.5 The extension performs adequately for basic chat functionality, but there are several performance concerns that impact the overall user experience. Some users reported smooth operation while others experienced significant issues. The basic messaging interface responds quickly to user input and displays messages promptly. The app generally maintains stability during normal usage without frequent crashes. Performance remains relatively consistent across different devices and platforms, and the app launches and loads the main interface reasonably quickly. However, we identified several performance issues that impact the overall rating:
That's why we rate performance at 6.5 out of 10. While the app provides generally stable basic functionality, the inconsistent response times, occasional technical issues, and the disruptive freemium limitations prevent it from delivering a consistently smooth user experience. |
| Design Prod Apps's expert score for the 'Design' aspect of each app. | 7.5 Calm's design successfully creates a soothing, peaceful atmosphere that supports its meditation and sleep mission. The dark, calming color scheme with deep blues and purples sets the right mood immediately. Visual elements are thoughtfully chosen to promote relaxation rather than stimulation, which is exactly what you want from a meditation app. Design strengths:
The interface generally succeeds at fading into the background, letting the content take center stage. For most users, navigation feels natural—open the app, select your content, and start your meditation or sleep session without friction. Some users mention the splash screen "take a breath" message appears frequently and takes a moment before you can access content. While this fits the app's philosophy, a few long-term subscribers find it repetitive after daily use for years. The search function within categories could be more robust for power users who want to explore the full catalog depth. For subscribers, the experience is streamlined. For free users exploring before committing, distinguishing between free and premium content could be clearer, though this is fairly standard for freemium apps. We're rating design 7.5 out of 10. Calm delivers a beautiful, calming visual experience with thoughtful design that supports meditation and sleep. Minor navigation refinements would elevate it further, but the overall aesthetic excellence justifies the premium positioning. Winner in this category | 6.5 The design is clean and modern, following current mobile design trends. We found the app's visual design to be functional and generally user-friendly, though it doesn't particularly stand out in terms of innovation or visual appeal. What users love most is the straightforward chat interface and the clean layout. The main conversation screen is accessible and doesn't overwhelm users with too many options. The app maintains a cohesive design throughout different sections, and the interface adapts well to different screen sizes and orientations. However, we identified several design-related issues that impact the user experience:
That's why we rate the design at 6.5 out of 10. The app provides a functional and clean interface, but it lacks the visual polish and user experience refinement that would make it truly stand out in the competitive AI assistant market. |
| Value for Money Prod Apps's expert score for the 'Value for Money' aspect of each app. | 7.0 At around €70 per year (pricing varies by region), Calm positions itself as a premium meditation app, and for most users, the content library justifies the investment. With 50M+ downloads and 4.8 stars on iOS, millions of people clearly find value worth paying for. Users who've subscribed for years mention the app becoming an essential nightly routine they wouldn't want to give up. The value proposition is strong:
For users getting Calm through employer wellness programs, the value is excellent—high-quality content at no personal cost. Even at full price, long-term subscribers frequently mention the subscription has become essential for their sleep quality and mental health, which makes the cost worthwhile. The subscription model is standard for premium apps—the free version offers limited access to encourage paid subscription. Users can try the app during a free trial period to evaluate whether the content works for them before committing long-term. Cancellation through the Play Store is typically one-click, which most users navigate successfully. Some users report billing confusion during trial periods or difficulty with customer service responses when issues arise. A small number mention pricing discrepancies during promotional periods. Like any subscription service, it's important to track trial end dates and verify charges match promotional pricing if taking advantage of special offers. Compared to competitors, Calm sits at the premium end with Headspace, while Medito offers free content. The celebrity narrations and production quality differentiate Calm's value proposition. We're rating value for money 7.0 out of 10. The extensive, high-quality content library with unique celebrity narrations provides solid value for the subscription price, particularly for users committed to regular meditation and sleep improvement. Those with employer coverage get excellent value, and even full-price subscribers generally find the cost justified by daily use. Winner in this category | 5.5 Chatbot AI's value proposition is one of its most contentious aspects, with user opinions ranging from enthusiastic endorsement to strong criticism. While the app offers access to multiple advanced AI models, the pricing structure and freemium limitations significantly impact its overall value. The ability to use GPT-4, GPT-4o, Google Gemini, Claude, and DeepSeek in one app provides significant value for users who need different AI capabilities. The app includes text generation, image creation, mental health support, and language learning features. Users can access the service across multiple devices, increasing the utility of their subscription. The free tier provides an ad-free experience, which is appreciated by users. However, we identified several significant value concerns that heavily impact the rating:
That's why we rate value for money at 5.5 out of 10. While the app offers access to valuable AI capabilities, the restrictive freemium model, high pricing, and mixed performance reviews significantly limit its overall value proposition. Users should carefully consider their specific needs and budget before committing to a subscription. |
| Ease of Use Prod Apps's expert score for the 'Ease of Use' aspect of each app. | 7.0 Calm is designed to be intuitive, and for most users, it succeeds. Opening the app and starting a meditation or sleep story takes just a few taps. The main interface presents your options clearly—browse by category, check out daily programs, or jump back to recently played content. Playback controls are simple and work as expected. For subscribers in their daily routine, the experience is smooth. Select your favorite sleep story, set a timer if desired, and drift off. The app remembers your preferences, making it easy to return to content you love. Many users mention using Calm nightly for years, which speaks to how well the basic experience works. Usability strengths:
The free trial process is standard for subscription apps—you provide payment information upfront, explore the content during the trial period, and can cancel before being charged. Most users navigate this successfully, though like any subscription app, you need to remember to cancel if you don't want to continue. Some users report specific issues: occasional login difficulties with Google authentication, confusion about which content is free versus premium for non-subscribers, and rare cases of the app stopping playback during the night. A small number of users mention subscription management confusion, though canceling through the Play Store is typically straightforward with one-click unsubscribe. The splash screen appears when opening the app, which some daily users find repetitive over time. For those who want to jump straight into content, this adds a brief delay, though it's designed to encourage that initial mindful breath. We're rating ease of use 7.0 out of 10. The app is genuinely easy to use for the vast majority of users, with intuitive navigation and simple playback. Minor friction points exist, particularly for free users exploring content boundaries, but don't significantly impact the subscriber experience. Winner in this category | 7.0 Chatbot AI offers a generally straightforward user experience that most users should find accessible. The core chat functionality is intuitive and easy to understand, with a familiar messaging interface that requires minimal learning curve. Installing it is a breeze, and you can easily add the app to both Android and iOS devices. Once installed, the chat interface works seamlessly right out of the box. The main conversation screen is clean and easy to use, with clear input fields and message display. Users can start chatting almost immediately after downloading the app, with minimal configuration required. The app follows standard mobile messaging conventions that users already understand, and the experience remains consistent across different devices and platforms. However, we identified several usability issues that impact the overall ease of use. Many users reported frustration with the app's freemium limitations, particularly the abrupt cutoff after just a few messages. This creates a jarring user experience where users are suddenly blocked from using the app they just started exploring. Additionally, some users mentioned that the app's interface doesn't clearly communicate what features are available in the free version versus the premium version. This lack of transparency can lead to confusion and disappointment when users discover they need to pay to access certain capabilities. We also found that while the basic chat functionality is simple, some of the more advanced features like image generation and model selection could benefit from better onboarding and explanation. New users might not immediately understand how to access or use these features effectively. Several users reported technical issues that affected usability, including slow response times and occasional crashes. While these issues don't make the app difficult to use when it's working properly, they can create a frustrating experience when they occur. That's why we rate ease of use at 7.0 out of 10. The app provides a generally intuitive experience for basic chat functionality, but the restrictive freemium model and lack of clear feature communication create usability barriers that prevent it from being truly user-friendly. Winner in this category |
| Security & Privacy Prod Apps's expert score for the 'Security & Privacy' aspect of each app. | 7.0 Calm handles user data responsibly with standard privacy practices appropriate for a wellness app. The company partners with major employers and insurance providers, which requires meeting enterprise-level security and privacy standards. With 50M+ downloads and partnerships with Fortune 500 companies, Calm maintains professional data protection practices. Security and privacy strengths:
The app collects usage data to track your meditation progress, favorite content, and streaks—standard for any app with personalization features. This data helps improve your experience by remembering preferences and providing personalized recommendations. The privacy policy outlines what data is collected and how it's used. Financial transactions are processed through Google Play Store, which provides an additional layer of security and familiar payment infrastructure. The Play Store handles payment information rather than the app storing it directly, following best practices for subscription apps. For users concerned about mental health data privacy, Calm's meditation and sleep content choices represent personal information. The app's enterprise partnerships and scale suggest they take this responsibility seriously, though as with any wellness app, users should review the privacy policy to understand data handling. Some users report billing questions during trial periods, which is common across subscription apps and typically relates to understanding trial terms rather than security issues. Standard subscription management through the Play Store provides familiar cancellation options for most users. The lack of data breach reports across millions of users and years of operation demonstrates solid security practices. For a wellness app trusted by major corporations, maintaining strong security and privacy standards is essential to business partnerships. We're rating security & privacy 7.0 out of 10. Calm maintains professional privacy practices appropriate for a wellness app with enterprise partnerships, handles user data responsibly, and shows no history of security breaches across millions of users. Winner in this category | 6.0 In the Security & Privacy category, we give Chatbot AI a 6.0 out of 10. The app's security and privacy practices present a mixed picture that requires careful consideration. The app uses user accounts which can provide some level of data protection and control. User data is synchronized across devices, suggesting some form of secure data storage. We found no reports of major security incidents or data leaks in user reviews. However, we identified several significant privacy and security concerns:
That's why we rate security and privacy at 6.0 out of 10. While the app doesn't appear to have major security vulnerabilities, the lack of transparency about data handling practices and the potential for sensitive information exposure through AI model processing create significant privacy concerns that users should carefully consider. |
| Conclusion A summary of our findings and final thoughts for each app. | Calm has earned its position as a leading meditation and sleep app with 50M+ downloads, 4.8 stars on iOS, and 4.1 stars on Android. The celebrity-narrated sleep stories are genuinely special—falling asleep to Cillian Murphy, Bob Ross, or Rosé provides a premium experience that justifies the subscription for millions of users. The daily programs, extensive meditation library, and variety of soundscapes create comprehensive value. Long-term subscribers frequently mention Calm becoming essential to their nightly routine, helping with sleep quality and stress management over years of use. The production quality is excellent, the content library is extensive, and the app performs reliably for the vast majority of users. For those whose employers provide Calm subscriptions as a wellness benefit, it's an excellent value proposition. Recent Android reviews show some concerns—the last 100 reviews average 3.04 stars, lower than the overall rating. Some users mention billing confusion during free trials, occasional technical issues, and customer service responsiveness questions. These issues appear to affect a subset of Android users rather than representing the typical experience, but they're worth noting. If you're considering Calm, the free trial lets you explore the content library to see if the sleep stories and meditation programs work for you. The celebrity narrations and production quality differentiate it from competitors. For daily meditation and sleep improvement, Calm delivers substantial value that users rely on over years. Alternative options include Medito for free meditation content with no subscription required, and Headspace for premium content with different stylistic approach. But Calm's unique celebrity content and extensive library make it a strong choice for those committed to meditation and sleep improvement. | Chatbot AI delivers a comprehensive AI assistant experience with access to multiple advanced language models. The app's strength lies in its versatility, offering everything from text generation to image creation and specialized coaching features. However, the restrictive freemium model and mixed user feedback suggest that while the app has potential, users should carefully consider their needs and budget. The high pricing and limited free trial make it difficult to recommend without reservations. |
| Our Recommendation | ||