Comparison

Pomodoro Study vs Zonein Timer

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Pomodoro Study

Features
Read full description

A calmer take on the pomodoro technique: real blocks, real breaks โ€” and the next block is always your choice. Calibrate is built for the moment before you begin. The task is big, the hour is open, and starting is the hard part. So you don't start with 25 minutes. You start with three. JUST START Swipe any to-do and you're in โ€” three minutes with it, that's the whole deal. At the checkpoint, you decide: another block, a break, or stop here. Stopping counts. You started. REAL BLOCKS, REAL BREAKS Work in blocks that end with one honest question โ€” how did it go? Breaks get their own clock, and coming back is a choice too. Nothing auto-starts. Nothing runs you. YOUR LOCK SCREEN DOES THE WORK The whole session lives on your Lock Screen and Apple Watch โ€” the countdown, the check-ins, the next-block choice. Your phone stays locked. You never have to open the app. EMPTY YOUR HEAD FIRST Brain-dump every loose thing into one list for today. Spaces keep work, home and health apart, so today stays short. Every to-do gets a day โ€” or waits, without nagging you. AN HONEST WEEK, NOT A SCORE The weekly recap shows what actually happened โ€” facts, never grades. No streaks, no scores. Miss a day, nothing breaks. WHO IT'S FOR Students in long study sessions. ADHD brains โ€” the app never punishes a wandered mind, it just asks kindly. Anyone who's tried blockers and streak apps and wants something gentler. Calibrate helps you notice. It never notices for you. Focus sessions, to-dos, spaces, lists and keeping track are free โ€” all of it, unlimited. Calibrate Plus adds the long view: your weekly recap, your sharpest hours, and every day you turned up. Monthly, or one purchase that's yours for good. Privacy policy: https://usecalibrate.app/privacy.html Terms of use: https://usecalibrate.app/terms.html

About

Zonein Timer

Features
Read full description

Zonein is a minimal focus timer that hides time while you work. No stats. No streaks. No gamification. Just a beautiful timer that gets out of your way. How it works: - Set your focus duration and tap Start - Time disappears โ€” you see only "Focus" and a subtle ambient animation - Tap the amber button to briefly peek at remaining time, then it fades back into fog - When focus ends, a gentle sound and haptic notify you - Rest countdown begins automatically - After rest, you're back to the start โ€” ready for another round Features: - Focus & Rest two-phase timer - Time hidden during focus with fog-reveal effect - Organic aurora animation - Customizable focus (5โ€“120 min) and rest (1โ€“60 min) durations - Sound and haptic feedback - Light and dark mode with warm material palette - Background timer with local notifications - Zero data collection, zero accounts, zero internet Zonein is not a productivity tool. It's a ritual.

Screenshots

Pomodoro Study4 screens
Zonein Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Zonein Timer at none against Pomodoro Study's 3. Pomodoro Study's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Pomodoro Study sells 3 in-app purchases, starting at $9.99 per month. Zonein Timer asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Pomodoro Study versus Zonein Timer: the parameters behind the verdict, then further details
ParameterPomodoro StudyZonein Timer
PriceFreeFree
Update frequencyEvery 8 daysโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone
Requires iOS17.0 โ€” better26.2
Further details โ€” not scored
Size41 MB8 MB
Age rating9+4+
DeveloperMujaheth MohammadYU AN

In-app purchases

3 purchases

Pomodoro Study

Subscriptions2
  • Calibrate Plus Monthly$9.991 Month
  • Calibrate Plus Yearly$39.991 Year
One-time1
  • Lifetime Access$79.99
None

Zonein Timer

No in-app purchases

Questions

Is Pomodoro Study free?
Pomodoro Study is free to download, with in-app purchases available.
Is Zonein Timer free?
Zonein Timer is free to download, with no in-app purchases.
Do Pomodoro Study or Zonein Timer have ads?
Neither Pomodoro Study nor Zonein Timer shows ads.

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