# Simple Timer vs RoundShift

The clearest difference is ads: RoundShift at none against Simple Timer's shown. RoundShift also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and in-app purchases there is nothing between them.

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

Simple Timer ships an update every 4 days, RoundShift every 2 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Simple Timer | RoundShift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roundshift-interval-timer/id6793125180/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 143 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Takehiro Asano](https://appshunter.io/developer/1879775755) | [Carl Law](https://appshunter.io/developer/1671704999) |

## What reviewers say

### Simple Timer

[App page](https://appshunter.io/ios/app/simple-timer-interval-timer/id6759607571)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Timer Pro | $4.99 | one-time |


### RoundShift

[App page](https://appshunter.io/ios/app/roundshift-interval-timer/id6793125180)

This interval timer app provides voice coaching for various workout types, allowing you to keep your eyes on your exercise rather than the screen. It offers customizable presets, multiple voice options, and can even display workouts on a larger screen for group sessions. Advanced features like adaptive rest and Apple Health integration are available with a Pro upgrade.

**Highlights:** Voice coaching for workouts, Customizable interval presets, Plain language workout builder, Multi-language coach voices, Screen-off and face-down operation, AirPlay for group sessions, Adaptive rest with Apple Watch

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervo Pro (Lifetime) | $4.99 | one-time |


## Frequently asked questions

### Is Simple Timer free?

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

### Is RoundShift free?

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

### Do Simple Timer or RoundShift have ads?

Simple Timer shows ads; RoundShift does not.

### Which is updated more often, Simple Timer or RoundShift?

Simple Timer ships an update every 4 days, and RoundShift every 2 days. Most recently, Simple Timer was updated on October 7, 2026 and RoundShift on October 15, 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.*