Comparison

Dora vs Chronos

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

Head to head
About

Dora

Features
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Gong Timer is a simple countdown timer for presentations and meetings. Even when you are not looking at the screen during your talk, the app notifies you with sounds at your selected “seconds before the end” timing and when time is up. ■ Main Features ・Countdown timer ・Start / Pause / Reset controls ・Customizable reminders before the end ・Gong sound when time is up ・Prevents the device from sleeping while the timer is running ■ About Reset First Reset: returns to the set time Second Reset: clears the timer to 0:00 Your settings are saved on your device and restored the next time you open the app. No account, network connection, or communication is required.

About

Chronos

Features
Read full description

Be the architect of time. Turn the dial, set the rhythm that feels right for you. Who said a second has to be a second? In the world you create, may you find your peace. Chronos is not another 25-minute timer. It is a focus clock built on one quiet truth: we all live in our own time. Some of us flow best at midnight. Some find our rhythm in the early morning. We each feel time differently — what feels like a second to you might stretch into a minute for someone else. And all around us, every moment on this planet, life unfolds at its own pace: a bird takes its first flight, a snowball rolls down a hill, a whale grows beneath the waves. To notice this is to find peace. WHAT HAPPENS IN AN HOUR • Twelve living watercolor worlds move with your clock. Watch a whale breach at dawn, mist drift over karst peaks, golden dunes shift in the wind, aurora dance across snow, and the galaxy bloom over midnight. The sun and moon trace real celestial arcs across the sky. • The world responds to you. Brush the screen and wind ripples through the grass. Tap a bird and it banks away. Touch the water and waves spread outward. Every sound is synthesized from pure mathematics — no recordings, no loops, just quiet, living whispers. • Life grows as you work. Eagles court, brood, and hatch their young on the cliffside. Two ships cross the evening sea to meet. Your focus becomes their story. WHEN THE HOUR ENDS It burns. Gently, completely. Then you mark it: one needle, five weights of time, a line if you wish, and your seal. Every hour has its weight. THE FRUITS OF TIME Your history is not a spreadsheet. It is an orchard. Every day is a tree. Every focus session is a fruit. Weekends glow in terracotta. Scroll back through your seasons, and see your time bloom. No account. No ads. No tracking. Your hours belong only to you, and stay only on your phone.

Screenshots

Dora2 screens
Chronos4 screens

Verdict

The call

The clearest difference is iOS requirement: Chronos at 18.0 against Dora's 26.0. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dora ships an update every 5 days, Chronos weekly. The most recent releases landed on September 17, 2026 and September 22, 2026 respectively.

Scorecard1 real difference · 5 level
Dora versus Chronos: the parameters behind the verdict, then further details
ParameterDoraChronos
PriceFreeFree
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS26.018.0 — better
Further details — not scored
Size6 MB45 MB
Age rating4+4+
DeveloperSaki HiraguchiArchest, LLC

In-app purchases

None

Dora

No in-app purchases

None

Chronos

No in-app purchases

Questions

Is Dora free?
Dora is free to download, with no in-app purchases.
Is Chronos free?
Chronos is free to download, with no in-app purchases.
Do Dora or Chronos have ads?
Neither Dora nor Chronos shows ads.
Which is updated more often, Dora or Chronos?
Dora ships an update every 5 days, and Chronos weekly. Most recently, Dora was updated on September 17, 2026 and Chronos on September 22, 2026.

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