hæl vs Burnlock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
hæl
This app acts as a silent observer for your fasting periods and menstrual cycle, reflecting your body's natural rhythms through literary prose. It integrates with Apple Health to provide context-aware insights into your weight and fasting windows, offering a unique, non-prescriptive approach to wellness tracking.
- Fasting timer with literary observations
- Menstrual cycle tracking via Apple Health
- Phase-aware fasting window adjustments
- Literary weight trend analysis
- Weekly and monthly retrospective letters
- On-device data privacy
- Apple Watch and iPad support
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hæl is a fasting timer that observes instead of coaching. the app watches the hours, reads the cycle, and reflects what it sees in prose. no prescription. no congratulation. most fasting apps count down and celebrate. hæl counts and stays quiet. the interface is a single ring. the language is literary. the body's rhythm shapes what the app says and when. THE FAST an ensō ring marks the hours. drag to choose a duration, tap to begin. the timer carries a name that changes as the fast deepens. lauds, prime, terce, vespers. names borrowed from the canonical hours. prose arrives about what the body is doing, not what it should do. overtime continues past the goal without comment. a day can be marked as rest instead, held without penalty. the first week is witnessed from the start, free. THE CYCLE hæl reads the menstrual cycle through Apple Health. the ring tint shifts with the phase. fasting windows adjust. shorter during menstruation, longer during follicular. weight is read in cycle context. a gain during luteal is not a gain during ovulation. the app knows the difference, and across enough cycles it learns the pattern, marking when today confirms what the body has already shown. cycle tracking is optional. non-cycle users receive their own prose register, rotating by month. THE WEIGHT a constellation sparkline tracks weight over time. each point a breathing star. the app reads the trend and writes one observation. no graphs demanding interpretation. one line of prose. THE LETTERS weekly letters arrive on mondays. a retrospective of the week. the fasting, the weight, the cycle. written in the same quiet voice. monthly readings take the longer view. quarterly readings mark the turn of each season. once a year, a year-in-review colophon gathers the whole arc into one page. in the ledger, a correspondence appears, one letter at a time, on the ensō, the canonical hours, the luteal phase, autophagy, the colophon. dismissed when read. a finite pool that goes quiet when the last page turns. THE COLOPHON when a fast ends, a page stays. the date spelled out, the hours witnessed, a line composed from what happened. a small ceremony for something the body did. shareable. THE LEDGER a bound record of every fast, grouped by cycle or by month. the current group is open. past groups fold to a spine, a date range and a spelled-out count. tap to unseal the colophon beneath. THE PRACTICE hydration tracking with eight water drops. notifications that observe the season, the morning, the phase. never demanding, always noticing. live activities on the lock screen and dynamic island. siri shortcuts for starting a fast or checking the hours. apple watch companion with a complication that carries its own witness line. ipad support. THE FULL WITNESS (one-time purchase, $19.99) the free app sees the fast. the full witness sees the cycle. the ring becomes phase-aware. body readings gain context. weekly letters, monthly readings, quarterly readings, and the year-in-review arrive in full. weight tracking reads the cycle. the ledger letters appear. milestone ceremonies mark the long stretches, seven days, thirty, ninety, a year. fasts beyond twenty-four hours unlock. one purchase, nothing recurring. PRIVACY all data lives on-device, in Apple Health, and in a private iCloud container. no account. no server of ours sees it. once Apple Health holds a weight or cycle entry, hæl stops mirroring that entry to iCloud and lets Health carry it between devices instead. hæl uses standard HTTPS for StoreKit and anonymous, privacy-first telemetry. nothing else. hæl is not a medical device. it does not diagnose, treat, or prescribe. fasts beyond forty-eight hours should be medically supervised. the app says so every time.
Burnlock
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The apps that distract you most stay locked until you have earned the time to open them. Not with a timer you can talk yourself out of — with calories. Burnlock reads the workouts Apple Health already knows about and turns what you burn into minutes of screen time. Train, open the app, watch the minutes land. Then spend them on whatever was eating your day. EVERY WORKOUT COUNTS Run, ride, lift, swim, row, a yoga class, a long walk. If Health recorded it, it pays. Nothing to log by hand, no camera, no reps performed in front of your phone. HOW IT WORKS • Choose the apps and categories you want shielded • Burn calories — 5 kcal buys a minute at the standard rate • Real workouts pay double what everyday movement pays • Unlock in blocks of 15, 30, 60 or 120 minutes • End an unlock early and the minutes you did not use come back NO APPLE WATCH? STEPS COUNT Without a Watch your calorie data is thin, so Burnlock credits steps instead — around 250 steps to the minute — and never counts both on the same day. YOU SET THE PRICE Six effort levels, from Gentle to Beast. Pick the one that matches your week and change it whenever your training does. REST DAYS ARE FREE Banked minutes are yours. Three quiet days cost nothing, and any activity at all — a walk counts — resets the clock. BOUNDED ON PURPOSE There is a ceiling on what you can earn in a day and a ceiling on what you can bank, because grinding calories for screen time is not the point. No leaderboard, no feed, no comparing yourself with anyone. YOUR HEALTH DATA STAYS ON YOUR PHONE Burnlock reads workouts and active energy, and only reads — it never writes to Health. Your health data is never uploaded, never placed in iCloud and never sent to any analytics service. Only the minutes you have banked move between your own devices. FREE AND PREMIUM Free: three shield slots, up to 60 earned minutes a day, a 240-minute bank, and the Gentle through Active rates. Premium: unlimited apps and categories, up to 240 minutes a day, a 600-minute bank, the 60 and 120-minute unlocks, the Strong and Beast rates with a custom slider and auto-calibration, and five emergency passes a month instead of one. Premium is a subscription. The price and renewal terms are on screen before you buy, and you can cancel any time in your Apple Account settings. Requires iOS 18, Screen Time, and permission to read Health. An Apple Watch is recommended but not required. Terms of Use: https://burnlock.bebra.me/terms Privacy Policy: https://burnlock.bebra.me/privacy
Screenshots
Verdict
The clearest difference is update cadence: Burnlock at every 2 days against hæl's every 6 days. On price, ads, in-app purchases and device support 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. hæl sells 1 one-off in-app purchase and Burnlock sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
hæl ships an update every 6 days, Burnlock every 2 days. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.
| Parameter | hæl | Burnlock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 18 MB | 41 MB |
| Age rating | 12+ | 4+ |
| Developer | KI-GEN STUDIOS LLC | Eduard Bulava |
In-app purchases
hæl
- the full witness$19.99
Burnlock
- Weekly Premium$3.997 Days
- Monthly Premium$9.991 Month









