Comparison

Routine Time Watch vs SixtySum

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

Head to head
About

Routine Time Watch

Features
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"Routine Time Watch" is an Apple Watch app that sequentially counts down through a list of tasks. ~ Features ~ -This app helps you efficiently complete your routines, such as a morning tasks, by making you more aware of time. -You can view your listed tasks on your Apple Watch and start from any step you like. -This app notifies you with a vibration when a time limit is reached. ~ How to Use ~ 1. On your Apple Watch, go to Settings > General > Return to Clock and select After 1 Hour. *1, *2 2. Open the app on your iPhone and enter your desired task in the text field at the top left. 3. After entering the text, set the time limit for the task to its right. 4. After you've finished entering the task, press the Add button to add it to your list. 5. Repeat the above steps to add more tasks. *3 6. Once your task list is complete, open the app on your Apple Watch. 7. Tap the Sync with Apple Watch button on your iPhone to sync the task list. 8. Confirm that the task list has been reflected on your Apple Watch. 9. Tap the Start button on your Apple Watch to begin the task countdown. *4 *1 You can also set a custom app setting to prevent the watch from returning to the clock face when you twist your wrist. *2 We recommend placing a shortcut to the app on your watch face for quick access. *3 To change the order or delete tasks, use the Edit button. *4 You can swipe left and right on the Apple Watch screen to switch to the task list.

About

SixtySum

Features
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Time isn't decimal. Your calculator shouldn't be either. SixtySum is a calculator built for one job: adding and subtracting hours, minutes, and seconds โ€” fast. A regular calculator works in tens. Time works in sixties. SixtySum does the base-60 math for you, so 50 minutes plus 20 minutes is 1 hour 10 minutes โ€” not 70. Tap H, M, or S, type the numbers, and go. No colon to fumble with. No menus to dig through. No internet to wait for. WHO IT'S FOR Video editors, streamers, audio and stage crews, and anyone who works by the clock and needs the total now โ€” not after another web search. WHAT YOU CAN DO - Add and subtract HH:MM:SS values - Switch instantly between H / M / S input - Drop in 15m / 30m / 45m with a single tap - Chain calculations without stopping - See negative results for time differences - Review your last 20 calculations at a glance QUIET BY DESIGN - One-time purchase โ€” buy it once, keep it - No ads - No subscription - No login or account - No tracking - Works fully offline SixtySum stays out of your way and just gives you the number. Note: Calculation history is kept for the current session only and is not saved permanently.

Screenshots

Routine Time Watch4 screens
SixtySum4 screens

Verdict

The call

The clearest difference is price: SixtySum at Free against Routine Time Watch's $0.99. SixtySum also leads on iOS requirement (15.0 vs 18.4). On update cadence, ads, in-app purchases 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

SixtySum is free to download; Routine Time Watch costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Routine Time Watch ships an update every 3 days, SixtySum every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
Routine Time Watch versus SixtySum: the parameters behind the verdict, then further details
ParameterRoutine Time WatchSixtySum
Price$0.99Free โ€” better
Update frequencyEvery 3 daysEvery 2 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch โ€” betteriPhone, iPod
Requires iOS18.415.0 โ€” better
Further details โ€” not scored
Size13 MB15 MB
Age rating4+4+
Developerkobunachou ozawaKENTA OSAWA

In-app purchases

None

Routine Time Watch

No in-app purchases

None

SixtySum

No in-app purchases

Questions

Is Routine Time Watch free?
Routine Time Watch costs $0.99, with no in-app purchases.
Is SixtySum free?
SixtySum is free to download, with no in-app purchases.
Do Routine Time Watch or SixtySum have ads?
Neither Routine Time Watch nor SixtySum shows ads.
Which is updated more often, Routine Time Watch or SixtySum?
Routine Time Watch ships an update every 3 days, and SixtySum every 2 days. Most recently, Routine Time Watch was updated on October 30, 2026 and SixtySum on October 31, 2026.

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