# Self timer vs Chemrix

The clearest difference is update cadence: Chemrix at weekly against Self timer's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Self timer ships an update every 3 months, Chemrix weekly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Self timer | Chemrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (38 ratings)](https://appshunter.io/ios/app/self-timer-camera-photoauto/id843500711/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [luca calciano](https://appshunter.io/developer/804190836) | [亚涛 冯](https://appshunter.io/developer/1868561246) |

## What reviewers say

### Self timer

[App page](https://appshunter.io/ios/app/self-timer-camera-photoauto/id843500711)

Capture group photos and selfies with a customizable delay timer. Adjust flash settings and choose between front or rear cameras. Easily crop and share your favorite moments.

**Highlights:** Customizable delay timer, Flash adjustment, Front/rear camera selection, Photo cropping, Direct sharing to social media, Save to photo album

**Features:** Vision Pro support

**In-app purchases:** none


### Chemrix

[App page](https://appshunter.io/ios/app/chemrix/id6773266733)

**In-app purchases:** none


## Frequently asked questions

### Is Self timer free?

Self timer is free to download, with no in-app purchases.

### Is Chemrix free?

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

### Do Self timer or Chemrix have ads?

Both Self timer and Chemrix show ads.

### Which is updated more often, Self timer or Chemrix?

Self timer ships an update every 3 months, and Chemrix weekly. Most recently, Self timer was updated on October 29, 2026 and Chemrix on October 24, 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.*