sleep vs PillRem
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
sleep
This tool helps you understand your body's natural sleep needs and circadian rhythm. Measure alertness variations with simple tests to optimize your daily schedule for peak performance and wellbeing. Export your data for personal use or research.
- Measure alertness variations
- Identify unique circadian rhythm
- Optimize sleep and activity schedules
- Scientifically validated reaction time test
- Track texting speed variations
- Exportable user data
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Sleep-2-Peak is a highly sensitive scientific tool developed by sleep specialists that will show you your best sleep and work/activity schedule by measuring your alertness variations. No other device or wearable required. Figure out your unique circadian rhythm and how to be most alert during the day. Use sleep-2-Peak to demonstrate to others your sleep need and ideal work/activity schedule contributing to your wellbeing. Your alertness variations are measured with a scientifically validated, short and simple reaction time test and/or through Text-Speed able to track your texting speed variations (patent pending). Your results are linked to your previous night bedtime/out of bed time to see what sleep schedule allows YOU to be at your BEST the next day. Your reaction time variations throughout the day are also demonstrated on a second graph to see what time of day is associated to your best performances. Ideal for high performance athletes, executives, and anyone else who wants to know the best time to sleep, workout, and even engage in analytical and creative activities. Researchers can also use sleep-2-Peak in their studies of fatigue and alertness as its reaction time test is proven to be as sensitive as the widely used PVT or even more sensitive for some aspects (sleep-2-Peak compared to the gold standard PVT-192). It is also more practical as every subject can have their own measuring device and transfer their data if desired to the researcher. Developed by a neurologist specialized in sleep medicine, cognitive psychologists with expertise in sleep and alertness and experts in digital health. Our fatigue measurement reaction time task is scientifically validated in a peer reviewed publication: Brunet, J. F., Dagenais, D., Therrien, M., Gartenberg, D., & Forest, G. (2017). Validation of sleep-2-Peak: A smartphone application that can detect fatigue-related changes in reaction times during sleep deprivation. Behavior Research Methods, 49, 2, 1460-1469. >10 poster publications that validate the use of the app for measuring physical and cognitive states. Your data is YOURS. You can export your data to your computer and select data you would like to export to others. Your data could also contribute to a global database to allow a better understanding of circadian rhythms and what can be done to improve schedules and wellbeing. In this event, your permission will be required to have your data entered in the database. The application was developed to be sensitive to detect: - Sleep need - The circadian rhythm (alertness variation with time of day and body rhythms) - Mental and physical performance variation (correlation with reaction time test) - Influence of substances By using sleep-2-Peak, you will become aware of alertness variations beyond what you can feel. You will discover how powerful your schedule choices can be to boost your performances naturally. FREE * Measure your alertness level and circadian variations * Link your bedtime schedule and substance use (coffee, alcoholβ¦) to your results * See graphics of your best bedtimes and best alertness times * Get averages and other stats related to your reaction time tests and texting speed * Store and export up to 7 days of data PREMIUM ($2.99 USD/month or $19.99 USD/year subscription with auto-renew) * More precise best bedtimes and work/activity schedule with increased use * Long term alertness level trends and effect of habit changes * Measure your alertness level and circadian variations * Link your bedtime schedule and substance use (coffee, alcoholβ¦) to your results * See graphics of your best bedtimes and best alertness times * Get averages and other stats related to your reaction time tests and texting speed * Store and export all your data * This subscription will auto-renew Privacy and terms of use: http://www.neurosummum.com/sleep2/Neuro-Summum-sleep-2-Peak-End-User-License-Agreement-EULA.pdf
PillRem
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Never forget your medication again. PillRem helps you and the people you care for stay on top of your medication β simply, privately, and without ads. TAKE YOUR MEDICATION, YOUR WAY Mark your doses directly from interactive widgets, without opening PillRem. SEE YOUR NEXT DOSE AT A GLANCE Check your next dose right on your Lock Screen and Dynamic Island with Live Activities β no need to unlock your phone. NEVER MISS AN IMPORTANT DOSE Critical Alerts let important medication reminders reach you even when your iPhone is in silent mode or Do Not Disturb. SCAN ANY MEDICATION Point your camera at a barcode or DataMatrix code and PillRem instantly recognizes your medication. Our global database covers medications from more than 40 countries, so it works wherever you get your medicine. TRACK YOUR ADHERENCE See how well you and your family are keeping up with your medication routine with clear, easy-to-read reports. Choose the period that works for you β 7 days, 1 month, 6 months, or 1 year. FIND A PHARMACY NEARBY Find pharmacies around you when you need your medication. Get useful location-based information when it's time to find a pharmacy. MANAGE YOUR MEDICATION Keep all your medications in one place, including those for regular, occasional, or as-needed use. See your upcoming doses at a glance, now with medication thumbnails to help you identify them faster. CARE FOR YOUR FAMILY Look after yourself and the people you care for β family members, elderly parents, children, and others β all from one place. Manage up to 8 user profiles in a single app. KNOW YOUR MEDICATION Access medication information from our database covering more than 40 countries. Keep important details such as dosage, expiry and other medication information organized in one place. SYNC ACROSS DEVICES Your data stays private and syncs across your Apple devices via iCloud. Marking or unmarking a dose is reflected across your devices, keeping your medication schedule up to date. A BETTER FIRST EXPERIENCE Set up PillRem with our redesigned welcome experience when you use the app for the first time. NO ADS. EVER. PillRem is completely ad-free in every version. Your health data is yours β we never sell, share or track it. AVAILABLE IN 21 LANGUAGES English, Spanish, Latin American Spanish, French, German, Italian, Portuguese (Portugal and Brazil), Dutch, Finnish, Swedish, Polish, Russian, Ukrainian, Japanese, Korean, Simplified Chinese, Traditional Chinese, Turkish and Arabic. PillRem is a reminder tool only. Always follow your doctor's advice and read the leaflet included with your medication. Privacy Policy: https://pillremapp.com/privacy Terms of Use: https://pillremapp.com/terms Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Thank you for choosing PillRem. Sincerely, Damy
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Verdict
The clearest difference is update cadence: PillRem at every 10 days against sleep's every 8 months. sleep's advantage is iOS requirement (9.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. sleep sells 3 in-app purchases, starting at $2.99 per month and PillRem sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
sleep ships an update every 8 months, PillRem every 10 days. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.
| Parameter | sleep | PillRem |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 72.7% of reviews | β |
| Update frequency | Every 8 months | Every 10 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 9.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 27 MB | 442 MB |
| Age rating | 4+ | 12+ |
| Developer | Neuro Summum Inc. | Diego Manuel Acevedo Diaz |
In-app purchases
sleep
- sleep-2-Peak Premium7 Days trial$2.991 Month
- sleep-2-Peak Premium Monthly$2.991 Month
- sleep-2-Peak Premium Yearly$19.991 Year
PillRem
- Monthly Subscription$4.991 Month
- Annual Subscription7 Days trial$34.991 Year
- Kind Tip$0.99
- Unexpected Surprise$1.99
- Huge Support$3.99
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- Life time purchase$79.99









