Comparison

Chronion vs OneFocus

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

Head to head
About

Chronion

Features
Read full description

Chronion is a focused, no-nonsense time tracking app for iPhone, iPad, Mac, and Apple Watch. Whether you track work hours, study sessions, or personal projects, it gives you a clear picture of where your time goes β€” without getting in the way. Start and stop in seconds Each of your categories appears as a row with a single Start/Stop button. Tap once to begin tracking, tap again to stop. Multiple categories can run independently β€” switch between them freely throughout your day. Full session history Browse your sessions by day using the date picker. Every session is logged with its exact start and end time. Tap any session to open the detail view, where you can review, correct, or invalidate individual entries. Invalidated sessions are shown with a strikethrough and excluded from all totals β€” useful for accidental starts or duplicates. Manual adjustments Made a mistake? Forgot to start the timer? Use the built-in adjustment field to add or subtract minutes from any category on any day. Adjustments are logged as their own entries so your history stays accurate and auditable. Offline-first, iCloud-backed Time Tracker works fully offline. All data is saved locally first and synced to iCloud automatically when a connection is available. Switch between your iPhone, iPad, and Mac and your sessions follow β€” no manual export or import needed. The app handles sync conflicts gracefully and keeps all your devices consistent. Apple Watch The companion watch app lets you start and stop timers directly from your wrist. A watch widget keeps your active timer visible at a glance on your watch face, so you never have to pull out your phone just to check the time. Home Screen and Lock Screen widgets Put your timers on your iPhone Home Screen or Lock Screen. The widget shows your active category and lets you start or stop tracking with a single tap β€” without opening the app. Weekly statistics The built-in stats view breaks down your tracked time by category across full calendar weeks. See daily totals, weekly totals, average hours per week, and average hours per day. Categories can be configured for a 5-day or 7-day week so your averages reflect your actual schedule. CSV export and import Export all your sessions as a CSV file for use in Numbers, Excel, or any other tool. Import existing CSV records to migrate from another app or restore a backup. Privacy by design Chronion requires no account, no login, and no subscription. Your data lives on your device and in your personal iCloud account β€” it is never sent to any external server or third party.

About

OneFocus

Features
Read full description

OneFocus turns a focus plan into one clear session across iPhone, iPad, and Mac. Choose a Focus Profile, set a duration, and see whether each device is protectedβ€”without a vague all-green status hiding a problem. FOCUS YOUR WAY β€’ Start 25, 50, or 90-minute sessions, or choose a custom duration. β€’ Build Profiles for Deep Work, Study, Reading, and your own routines. β€’ Block selected apps and websites on iPhone and iPad with Apple's Screen Time controls. β€’ Use the free Mac companion to protect supported apps and websites. β€’ Keep a session going with local rain, cafΓ©, train, forest, wave, and other procedural sounds. ONE SESSION, HONEST STATUS Private iCloud sync carries your active session, Profiles, schedules, history, and verified Pro status between devices. OneFocus shows iPhone Protected, Mac Protected, Waiting, Needs Permission, or Offline separately, so you know what is actually happening. Existing local sessions and history remain useful offline. HISTORY THAT EXPLAINS YOUR TIME Review Today, 7 Days, Month, and All Time. See pause-aware totals, streaks, Profile distribution, a calendar heatmap, Focus Constellation, and per-device protection intervals. Session details preserve the Profile used at the time, even if you later rename it. APPLE WORKFLOWS Use App Shortcuts for quick 25 or 50-minute starts, open History, and coordinate OneFocus with an Apple Focus through a guided Shortcut. Core actions support VoiceOver, larger text, reduced motion, and keyboard navigation. FREE AND PRO The free version includes manual sessions, one custom Profile, four sounds, a daily goal, basic iPhone/Mac connection, Flexible mode, and recent history. A single US$9.99 Pro Lifetime purchase unlocks unlimited Profiles, repeating schedules, full history, all sounds, skies, and themes, Committed mode, advanced Shortcuts, and data export. Restore purchases at any time. PRIVATE BY DESIGN No OneFocus account. No ads. No third-party tracking. Browser content and Screen Time selections are not uploaded. Sync uses your private iCloud database, and sounds are generated locally. Terms of Use: https://oneapps.studio/terms

Screenshots

Chronion4 screens
OneFocus4 screens

Verdict

The call

The clearest difference is in-app purchases: Chronion at none against OneFocus's 1. OneFocus's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. OneFocus sells 1 one-off in-app purchase. Chronion asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
Chronion versus OneFocus: the parameters behind the verdict, then further details
ParameterChronionOneFocus
PriceFreeFree
Update frequencyEvery 3 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, Mac, Apple Watch β€” betteriPhone, iPad, Mac
Requires iOS26.018.0 β€” better
Further details β€” not scored
Size10 MB31 MB
Age rating4+4+
DeveloperMarco BormannFreedom Dimension (shenzhen) Technology Co., Ltd

In-app purchases

None

Chronion

No in-app purchases

1 purchases

OneFocus

One-time1
  • OneFocus Pro Lifetime$9.99

Questions

Is Chronion free?
Chronion is free to download, with no in-app purchases.
Is OneFocus free?
OneFocus is free to download, with in-app purchases available.
Do Chronion or OneFocus have ads?
Neither Chronion nor OneFocus shows ads.

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