Comparison

Pomodoro Study Timer & Tracker vs Just One

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 Timer & Tracker

Features
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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. START FROM YOUR LIST Swipe any to-do and you start with three easy minutes. Then your block carries on by itself. REAL BLOCKS, REAL BREAKS Each block ends with one question: how was your focus? Answer, and your break begins. Come back when you're ready. 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. Nothing needs unlocking. 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

Just One

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Just One - One task at a time. Most productivity apps give you more to manage. Just One does the opposite. You choose one task. You finish it. Only then can you start the next. No lists. No juggling. No overwhelm. ------ HOW IT WORKS 1. Set your one thing - Decide what matters right now and commit to it. 2. Stay focused - Your task stays on screen. You cannot create a new one until it is done. 3. Finish and move on - Mark it complete, then choose your next focus. 4. Be honest with yourself - Did not finish? Carry it forward or let it go, but you have to decide. ------ FEATURES * One task at a time * Daily focus screen * Streak tracking * Calendar view * Progress tracking * Light and dark mode * Adjustable text size * No account required ------ BUILT FOR * People who feel overwhelmed by to-do lists * People who start but struggle to finish * People who want clarity, not complexity ------ NOT FOR * Complex project management * Team collaboration * Full task lists and planning systems ------ PRIVACY Your data stays on your device. We do not collect personal data.

Screenshots

Pomodoro Study Timer & Tracker4 screens
Just One4 screens

Verdict

The call

The clearest difference is in-app purchases: Just One at none against Pomodoro Study Timer & Tracker's 3. Just One also leads on update cadence (daily vs every 5 days) and iOS requirement (15.6 vs 17.0). 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 Timer & Tracker sells 3 in-app purchases, starting at $3.99 per month. Just One asks for nothing beyond the download.

UpkeepUpdate frequency

Pomodoro Study Timer & Tracker ships an update every 5 days, Just One daily. Both last shipped on October 31, 2026.

Scorecard3 real differences ยท 3 level
Pomodoro Study Timer & Tracker versus Just One: the parameters behind the verdict, then further details
ParameterPomodoro Study Timer & TrackerJust One
PriceFreeFree
Update frequencyEvery 5 daysDaily โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS17.015.6 โ€” better
Further details โ€” not scored
Size43 MB18 MB
Age rating9+4+
DeveloperMujaheth MohammadRaving Code

In-app purchases

3 purchases

Pomodoro Study Timer & Tracker

Subscriptions2
  • Calibrate Plus Monthly$3.991 Month
  • Calibrate Plus Yearly7 Days trial$24.991 Year
One-time1
  • Lifetime Access$29.99
None

Just One

No in-app purchases

Questions

Is Pomodoro Study Timer & Tracker free?
Pomodoro Study Timer & Tracker is free to download, with in-app purchases available.
Is Just One free?
Just One is free to download, with no in-app purchases.
Do Pomodoro Study Timer & Tracker or Just One have ads?
Neither Pomodoro Study Timer & Tracker nor Just One shows ads.
Which is updated more often, Pomodoro Study Timer & Tracker or Just One?
Pomodoro Study Timer & Tracker ships an update every 5 days, and Just One daily. Most recently, Pomodoro Study Timer & Tracker was updated on October 31, 2026 and Just One on October 31, 2026.

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