Parallel Rest Timer vs Drowsa
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Parallel Rest Timer
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I built this app because I was tired of overly complicated workout trackers. I didn't want to click through menus logging my reps, sets, and weight records just to finally start a simple rest timer. If you just want to start your workout and time your breaks, this is the app for you. It does exactly what it says: lets you start a workout session and run multiple rest timers at the same time, right from your wrist. What it does: - Closes your rings: It starts a real watchOS workout session, so your heart rate is tracked and your active calories count toward your Apple Health rings. - Phone-free: Works entirely on your Apple Watch so you can leave your phone in your locker or at home. - Concurrent timers: Run multiple break timers in parallel. - Not just for lifting: You can select different activity types, making it just as useful for running, HIIT, yoga, or any other workout outside the weight room. - 100% Private: This app maximizes your privacy. It doesn't even ask for internet access, requires no accounts, and does zero tracking. Your data never leaves your device. No fluff, no mandatory data entry, and no tracking. Just start your activity, and time your rests.
Drowsa
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Drowsa helps rotating shift workers plan sleep and recovery around real-world schedules. Instead of assuming a normal bedtime, Drowsa builds practical guidance around your actual rotation. ⢠Ready-made shift templates for nights, days, 12-hour rotations, 2-2-3 patterns, and custom schedules ⢠Sleep-window planning based on your shift timing and circadian rhythm ⢠Nap, caffeine cutoff, and light exposure guidance ⢠Local reminders for sleep, wake, and recovery timing ⢠Optional Apple Health sleep comparison when you grant Health access ⢠Calendar export and shareable sleep-window messages ⢠Privacy-first design: no account, no cloud, no tracking; your plan stays on your device Drowsa is built for nurses, factory workers, security staff, transport drivers, emergency workers, and anyone whose sleep has to work around rotating shifts. Drowsa is a planning and reminder tool, not medical advice. Do not rely on it as your only alarm or for safety-critical decisions. Support: Email: anjie@jiandou.com Developer: Jiandou Tech If you have questions, feedback, or need help with Drowsa, please contact us by email. Legal: Privacy Policy: https://jiandou.com/app/drowsa/privacy.html Terms of Use (EULA): https://jiandou.com/app/drowsa/useragreement.html Auto-Renewable Subscription Terms: https://jiandou.com/app/drowsa/subscription.html
Screenshots
Verdict
The clearest difference is in-app purchases: Parallel Rest Timer at none against Drowsa's 2. Parallel Rest Timer also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Drowsa sells 2 in-app purchases, starting at $4.99 per month. Parallel Rest Timer asks for nothing beyond the download.
Parallel Rest Timer ships an update weekly, Drowsa every 3 weeks. Both last shipped on September 18, 2026.
| Parameter | Parallel Rest Timer | Drowsa |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly ā better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Remigiusz Herba | Jiandou Technology Co., Ltd. |
In-app purchases
Parallel Rest Timer
No in-app purchases
Drowsa
- Drowsa Pro Monthly7 Days trial$4.991 Month
- Drowsa Pro Annual7 Days trial$29.991 Year
Questions
Is Parallel Rest Timer free?
Is Drowsa free?
Do Parallel Rest Timer or Drowsa have ads?
Which is updated more often, Parallel Rest Timer or Drowsa?
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