# Timer on Me vs Curtain Calc Pro

The clearest difference is price: Curtain Calc Pro at Free against Timer on Me's $0.99. Curtain Calc Pro also leads on in-app purchases (none vs 1) and iOS requirement (17.0 vs 26.0). Timer on Me's advantage is device support (3 vs 1). On ads there is nothing between them.

Curtain Calc Pro is free to download; Timer on Me costs $0.99 up front. Timer on Me sells 1 one-off in-app purchase. Curtain Calc Pro asks for nothing beyond the download.

## The numbers

| Metric | Timer on Me | Curtain Calc Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/timer-on-me-interval-timer/id6746874284/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Weiren Hsiao](https://appshunter.io/developer/1814981798) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### Timer on Me

[App page](https://appshunter.io/ios/app/timer-on-me-interval-timer/id6746874284)

This app offers a versatile interval timer and stopwatch for iPhone, iPad, and Apple Watch. It allows for multiple concurrent timers, custom workout intervals, and reliable alerts that function even when the app is closed or the phone is locked. It supports various training styles, study techniques, and everyday timing needs.

**Highlights:** Up to 50 independent timers, Custom interval editor, Built-in workout presets, Reliable alerts (even when closed), Apple Watch native app, Home Screen widgets, Export sessions (CSV, JSON, Text)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Alarms | $0.99 | one-time |


### Curtain Calc Pro

[App page](https://appshunter.io/ios/app/curtain-calc-pro/id6770147174)

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

**In-app purchases:** none


## Frequently asked questions

### Is Timer on Me free?

Timer on Me costs $0.99, and also offers in-app purchases.

### Is Curtain Calc Pro free?

Curtain Calc Pro is free to download, with no in-app purchases.

### Do Timer on Me or Curtain Calc Pro have ads?

Neither Timer on Me nor Curtain Calc Pro shows ads.

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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.*