# cal evt vs Scientific Timer

The clearest difference is price: cal evt at Free against Scientific Timer's $0.99. cal evt also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On ads and in-app purchases there is nothing between them.

cal evt is free to download; Scientific Timer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | cal evt | Scientific Timer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cal-evt/id6740196077/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 16 months |
| Size | 4 MB | 8 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [烨 马](https://appshunter.io/developer/1488627852) | [Stephane Boutet](https://appshunter.io/developer/1794014850) |

## What reviewers say

### cal evt

[App page](https://appshunter.io/ios/app/cal-evt/id6740196077)

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

**In-app purchases:** none


### Scientific Timer

[App page](https://appshunter.io/ios/app/scientific-timer/id6741395405)

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

**In-app purchases:** none


## Frequently asked questions

### Is cal evt free?

cal evt is free to download, with no in-app purchases.

### Is Scientific Timer free?

Scientific Timer costs $0.99, with no in-app purchases.

### Do cal evt or Scientific Timer have ads?

Neither cal evt nor Scientific Timer 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.*