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 reliable read-it-later app with clean formatting and offline reading. Great for organizing articles by category, though the interface feels dated. | |
| 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 | 7.2 |
| 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 | 7.3 PaperSpan is pretty good at the basic stuff. It takes messy web articles and makes them actually readable, which is honestly the main thing you want from an app like this. No ads, no random pop-ups, just clean text that's easy on the eyes.
The annoying part is that sometimes the text gets cut off halfway through an article, so you have to switch to the web view to finish reading. Also, the search could be better. It's a solid app for basic use, but if you want fancy features, you might be disappointed. We'd give it 7.3 out of 10. |
| 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 | 6.9 Performance is PaperSpan's biggest weakness. When everything works correctly, the app is fast and responsive. Article saving is quick, reading is smooth, and offline functionality is excellent. The problem is consistency—too many things go wrong too often. The most common issues we encountered include sync problems between devices, network connectivity failures during signup, and the frustrating text view cutoff that interrupts reading sessions. The discontinued Chrome extension also limits desktop integration significantly. These aren't dealbreaking problems, but they add up to an inconsistent user experience. The positive news is that recent ratings have improved significantly (4.13/5 for the last 100 reviews compared to 3.8/5 overall), indicating the developers are actively addressing these issues. Performance score: 6.9/10. |
| 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 | 6.2 PaperSpan's design prioritizes function over form, which works well for the reading experience but falls short everywhere else. The article reader itself is excellent—clean typography, perfect spacing, and smart image handling make reading genuinely enjoyable.
The problem is everything outside the reading experience. The overall interface looks and feels outdated compared to modern apps. Multiple users mentioned this in reviews, and we completely agree—PaperSpan desperately needs a visual refresh. The functionality is solid, but the dated appearance undermines the user experience. Design score: 6.2/10. |
| 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. | 8.1 This is where PaperSpan absolutely excels. The free version is genuinely useful—not a crippled demo designed to force you into paying. You get article saving, clean reading, offline access, and basic organization without any artificial restrictions. It's refreshingly honest in a world of manipulative freemium models. The premium subscription at €10.99 monthly unlocks audio playback, enhanced search, Kindle integration, and improved syncing. For heavy readers who use these features daily, it's reasonably priced. Casual users will find the free version more than sufficient for their needs. What impressed us most was user feedback describing PaperSpan as "the only read later app providing all the features for free." While not entirely accurate, it speaks to how generous the free tier feels. The pricing is fair and transparent—no hidden costs or misleading trials. Value for money score: 8.1/10. Winner in this category |
| 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. | 7.8 PaperSpan gets this right from the first minute. The app is genuinely intuitive—no complex setup, no overwhelming feature lists, just straightforward functionality that works exactly as you'd expect. Within minutes of downloading, you're saving and reading articles effortlessly. The basics are seamless. Save articles with one click from your browser, and the automatic categorization handles organization without any input from you. Reading controls are exactly where you'd expect them, and switching between text and web view is instant when needed. We did encounter some frustrating technical issues. Network connectivity problems during signup affect multiple users, and we experienced sync delays between devices. The text cutoff issue can be annoying mid-article. These problems don't break the app, but they create unnecessary friction in what should be a smooth experience. Ease of use score: 7.8/10. 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 | 6.8 Security and privacy aren't PaperSpan's strongest selling points, mainly because there's limited transparency about how your data is handled. The app stores your reading data on their servers for syncing across devices, which is standard practice but means your reading habits and saved articles aren't kept locally. What concerned us most was the lack of detailed privacy documentation. For an app that handles your reading preferences, article URLs, and potentially sensitive saved content, clearer communication about data protection would be reassuring. We didn't encounter obvious security problems during testing, but the transparency gap is noticeable. Most users probably won't find this problematic for everyday use, but privacy-conscious readers might want to dig deeper into the terms of service or consider alternatives with more transparent data practices. Security and privacy gets 6.8 out of 10. |
| 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. | After using PaperSpan for a while, we'd actually recommend it to most people. Yeah, it looks a bit old and has some annoying bugs, but it does the main job really well. If you commute a lot or just want to actually read those articles you save instead of letting them pile up forever, this app helps. It's not fancy, but it works, and sometimes that's exactly what you need. |
| Our Recommendation | ||