Anchor vs Deep Focus Timer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Anchor
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Anchor is a focus timer with a twist: it only works when your phone is face-down. Set your time, flip your phone onto a flat surface, and the timer starts automatically. Lift it early? Session broken. Stay committed until the timer ends, and you've earned your focus. WHY ANCHOR? โข No willpower required โ flip and forget โข No apps to block, no settings to configure โข Visual proof: red for broken, green for complete โข Session history calendar to track your progress HOW IT WORKS 1. Choose your focus duration (1-30 minutes free, up to 4 hours with Pro) 2. Place your phone face-down on any flat surface 3. The timer starts automatically when gravity detects the position 4. Stay focused. Your phone stays down. That's it. ANCHOR PRO (One-Time Purchase) โข Unlock sessions up to 4 hours โข Perfect for deep work, studying, or creative sessions โข No subscription โ pay once, own forever The simplest way to put your phone down and actually focus.
Deep Focus Timer
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Calibrate is a deep focus timer with a simple idea: empty your head first, then sit with one thing. Start with a brain dump โ everything on your mind becomes a simple, organized to-do list. Swipe one line to begin a focus session. While you sit, Calibrate checks in quietly on your Lock Screen: still present, or did something pull you away? You answer in one tap. That's the whole mechanic. If you've outgrown the rigid 25/5 of pomodoro, this is what comes after: sessions that fit you, gentle check-ins instead of alarms, and an honest record instead of a score. Over time, the answers become something rare: an honest record of your attention. Not a score. Not a streak. A quiet mirror. WHAT'S INSIDE โข Deep focus sessions โ open-ended, with gentle check-ins at your rhythm โข Live Activity on the Lock Screen โ your sitting stays present without unlocking your phone โข Brain dump to to-dos โ capture fast, sort into spaces later โข The done list โ finished things stay visible; your day ends with evidence, not guilt โข Keeping track โ "when did I last change the filter?" Cross a to-do off, keep track of it, and the date is always there โข Weekly recap โ your week, mirrored back in one calm card, with one line you carry into the next โข No streaks, no shame, no red badges โ Calibrate helps you notice; it never judges WHO IT'S FOR People who've tried blockers and streak apps and want something gentler. Students in long study sessions. Anyone whose attention wanders โ ADHD brains welcome; the app never punishes a wandered mind, it just asks kindly. Free for 14 days, everything open โ no card needed. After that, your to-dos, journal, and history stay free forever. Calibrate Plus (focus sessions, habit intelligence, new weekly recaps) is a monthly or yearly subscription (prices shown in the App Store). Privacy policy: https://usecalibrate.app/privacy.html Terms of use: https://usecalibrate.app/terms.html
Screenshots
Verdict
Anchor and Deep Focus Timer are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Anchor sells 1 one-off in-app purchase and Deep Focus Timer sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Anchor | Deep Focus Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 1 MB | 37 MB |
| Age rating | 4+ | 9+ |
| Developer | Yagฤฑz UGURVEREN | Mujaheth Mohammad |
In-app purchases
Anchor
- Anchor Pro$4.99
Deep Focus Timer
- Calibrate Plus Monthly$9.991 Month
- Calibrate Plus Yearly$39.991 Year
- Lifetime Access$79.99









