# Decima vs iSimpleStopWatch

The clearest difference is ads: Decima at none against iSimpleStopWatch's shown. iSimpleStopWatch's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Decima sells 1 one-off in-app purchase and iSimpleStopWatch sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Decima ships an update every 2 months, iSimpleStopWatch every 3 months. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Decima | iSimpleStopWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 12 MB | 47 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Krzysztof Pawlowski](https://appshunter.io/developer/1216003515) | [BeWise s.r.o.](https://appshunter.io/developer/1166472031) |

## What reviewers say

### Decima

[App page](https://appshunter.io/ios/app/decima/id1498371556)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Manipulator | $0.99 | one-time |


### iSimpleStopWatch

[App page](https://appshunter.io/ios/app/isimplestopwatch/id6446799571)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |


## Frequently asked questions

### Is Decima free?

Decima is free to download, with in-app purchases available.

### Is iSimpleStopWatch free?

iSimpleStopWatch is free to download, with in-app purchases available.

### Do Decima or iSimpleStopWatch have ads?

iSimpleStopWatch shows ads; Decima does not.

### Which is updated more often, Decima or iSimpleStopWatch?

Decima ships an update every 2 months, and iSimpleStopWatch every 3 months. Most recently, Decima was updated on September 25, 2026 and iSimpleStopWatch on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*