ZenFast vs SleepLock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZenFast
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ZenFast, fasting that adapts to real life, your schedule rules. Whether you're new or experienced, ZenFast's intelligent tracker syncs with YOUR rhythm. ◇ Dynamic Fasting Windows Smart algorithms adjust fasting phases based on actual meal times - no rigid clocks. ◇ Effortless Logging Tap-to-record with 15-min precision + food emojis. Meal tracking made joyful. ◇ Motivation Engine Live progress ring + calendar heatmap + shareable achievement cards. Celebrate every win. 4 science-backed plans, start your 7-day free trial → Find YOUR sustainable fasting rhythm! *Consult a doctor before fasting. Not a medical solution.* Feel free to contact us: Official Website: https://www.beibitech.com Official Email: zenfast@beibitech.com
SleepLock
This app helps you establish consistent bedtimes by turning the process into a game. It focuses on getting you to bed on time each night, allowing you to track your progress and build healthy sleep habits.
- Consistent bedtime enforcement
- Build sleep streaks
- Log sleep and rate energy
- Advanced sleep analytics (Pro)
- Gamification with XP and badges (Pro)
- Local data storage for privacy
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SleepLock turns a consistent bedtime into a game you want to win. Most sleep apps track what already went wrong. SleepLock helps you fix the one thing that matters most: getting to bed on time, every night. Set your target bedtime, follow a calming wind-down routine, and log how you slept in seconds. WHY SLEEPLOCK • Lock in your bedtime — a clear nightly commitment, not vague advice • Build unbreakable streaks — every on-target night keeps your streak alive • Wake up energized — rate your morning energy and watch it climb • Stay private — your sleep data is stored locally on your device. No account required. SLEEPLOCK PRO Upgrade to unlock the full experience: • Advanced sleep analytics — bedtime consistency, energy, and duration trends • Full gamification — XP, sleep levels, quests, and achievement badges • Unlimited streak history — your full calendar, month by month • Smart bedtime enforcement — gentle nudges at and past bedtime Free forever: nightly logging, your current streak, and your daily dashboard. Start tonight. Lock in your best sleep. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gwlabs.app/privacy
Screenshots
Verdict
The clearest difference is device support: ZenFast at 3 against SleepLock's 1. ZenFast also leads on iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ZenFast sells 2 in-app purchases, starting at $0.99 per month and SleepLock sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | ZenFast | SleepLock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | — | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 23 MB | 66 MB |
| Age rating | 4+ | 12+ |
| Developer | Beibi Technology Co., Ltd. | Rob Goldstein |
In-app purchases
ZenFast
- All Access (1 month)7 Days trial$0.991 Month
- All Access (lifetime)$4.99
SleepLock
- SleepLock Pro Weekly$4.997 Days
- SleepLock Pro Monthly3 Days trial$9.991 Month
- SleepLock Pro Yearly3 Days trial$49.991 Year
- SleepLock Pro Lifetime$79.99
