Comparison

Decima vs DsStopWatch

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

Head to head
About

Decima

Features
Read full description

The application you have before you is but a small attempt at working with time. Since it's a precious commodity all we can do is spend it wisely. That's why I've decided to spend a bit of my time and create Decima (named after Roman Parca, the female personification of destiny) so that you don't have to ;) So what you can do with Decima? In the current version 1.1 (Joséphine) you can: • create multiple timers • set multiple alerts per timer to track time expenditure • use it on both: your iPhone and Apple Watch (iPhone application is necessary) • start/stop timers on demand from your iPhone/iPad or Apple Watch • organize your time in sets • see total/partial time spent for a particular timer • automatically synchronise data between your iPhone and your Apple Watch (timer started on your phone can be paused on your Apple Watch and vice-versa) Have fun. Catch me at krzyspmac@twitter or contact (at) krzysp.net

About

DsStopWatch

This utility allows for precise time measurement with multiple stopwatches. It offers real-time recording, saving, and copying of time data in CSV format. Advanced features include button operation customization, lock mode for preventing accidental presses, and the ability to synchronize operations.

Highlights
  • Multiple stopwatches
  • Real-time time recording
  • Save and copy time records (CSV)
  • Customizable button operations
  • Lock mode for accidental presses
  • Light and dark screen modes
  • Operation cancellation and modification
Features
Read full description

1. How to operate (1) Button operation Operable buttons are colored. (2) Time record The measured time is recorded on the record screen in real time. To see the new record screen, press the Record> button. To see the old record screen, press the R button. To clear the time record, press the Clear All button twice. To save the time record, press the Save All button twice. Time record saves are overwritten each time. When you press the Copy button, the time record is copied to the clipboard in csv format, so you can paste it to Numbers etc. Selecting a name will display the selected person's time record. By selecting the unit distance for lap timing, the lap time for each unit distance is displayed. (3) Button operation reaction Vibration by button operation, click sound, support voice are possible. Operate with the Vibration button, Click button, and Voice button. (4) Name change You can change the name. Press the Name button or RUN button to enter LOCK mode, select a name to change the name, and press the return key to confirm the name change. Even if you change the name, pressing anything other than the return key cancels the name change. (5) LOCK mode Button operation can be prohibited to prevent erroneous button operation. If you press the Name button or RUN button to enter LOCK mode, button operation is prohibited. To cancel LOCK mode, press the Name button or LOCK button again. (6) Light screen and dark screen You can switch between light screen and dark screen. Please push the Light button or the Dark button. (7) Operation cancellation function The operation cancellation function can cancel the button operation. Only the last button operation can be canceled. Press the Undo button immediately after pressing the button. (8) Operation change function The operation change function can cancel and change the button operation. Only the last button operation can be changed. Immediately after pressing the button, press the Undo button, press the Sync button, and then press the button you want to change. (9) Operation addition function Operation addition function can be added by synchronizing button operation. It can be added in sync with the last button operation. Immediately after pressing the button, press the Sync button, then press the button you want to add. (10) Select mode Select mode allows you to operate multiple buttons at the same time. Press the Sel button to switch to select mode, select multiple buttons you want to operate at the same time, and then press the Sel button at the bottom. (11) Tapping mode The tapping mode allows you to tap first and then assign the tapping operation to any button on the stopwatch. Press the Tap button to switch to tapping mode, press the Tapping button, then press the button you want to assign to the stopwatch. You can also use A, G, 0 on the external keyboard and 0 on the numeric keypad instead of the Tapping button. The Tapping button can be memorized up to 10 times. 2. Operation Lap time and total time are displayed repeatedly in the range from 00:00.0 to 59:99.9. The time record on the record screen is displayed repeatedly in the range from 0:00:00.0 to 9:59:59.9. The Lap button also displays the number of Laps. The Lap button repeats the display in the range from 0 to 9. Lap on the record screen is displayed repeatedly in the range from 0 to 99. The resolution of the time display is 0.1 seconds, but the internal time is measured with a higher resolution. The action of each button starts at the moment the button is pressed and released. (Same as apple genuine app.) Even if you quit the app or turn off the power of the smartphone, it will continue to keep time when you start the app. There is no background processing, so this app will not drain your battery when you close it.

Screenshots

Decima4 screens
DsStopWatch4 screens

Verdict

The call

The clearest difference is in-app purchases: DsStopWatch at none against Decima's 1. DsStopWatch also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support 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. Decima sells 1 one-off in-app purchase. DsStopWatch asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 25, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 7 level
Decima versus DsStopWatch: the parameters behind the verdict, then further details
ParameterDecimaDsStopWatch
PriceFreeFree
Rating—4.3 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperKrzysztof PawlowskiRyuichi Kato

In-app purchases

1 purchases

Decima

One-time1
  • The Manipulator$0.99
None

DsStopWatch

No in-app purchases

Questions

Is Decima free?
Decima is free to download, with in-app purchases available.
Is DsStopWatch free?
DsStopWatch is free to download, with no in-app purchases.
Do Decima or DsStopWatch have ads?
Neither Decima nor DsStopWatch shows ads.
Which is updated more often, Decima or DsStopWatch?
Decima ships an update every 2 months, and DsStopWatch every 2 months. Most recently, Decima was updated on September 25, 2026 and DsStopWatch on September 27, 2026.

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