# Calibration Flow vs Bitrot

The clearest difference is device support: Calibration Flow at 4 against Bitrot's 2. Calibration Flow also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Calibration Flow sells 2 in-app purchases, starting at $8.90 per month and Bitrot sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Calibration Flow ships an update every 5 days, Bitrot weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calibration Flow | Bitrot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (5 ratings)](https://appshunter.io/ios/app/bitrot-glitch-photo-editor/id6782186021/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Freemium |
| Size | 16 MB | 35 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tristan sidem](https://appshunter.io/developer/1819920733) | [William Shouldis](https://appshunter.io/developer/1846001135) |

## What reviewers say

### Calibration Flow

[App page](https://appshunter.io/ios/app/calibration-flow/id6747118030)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Picturale Pass Monthly | $8.90 | per month |
| Picturale Pass Yearly | $89.00 | per year |


### Bitrot

[App page](https://appshunter.io/ios/app/bitrot-glitch-photo-editor/id6782186021)

Create unique, textured images with a variety of destructive and retro effects. This app offers layered editing, masking, and precise control over pixel manipulation, all processed locally on your device. Enhance your photos with film-style presets, custom text, and collage tools.

**Highlights:** Layered effect stacking, Masking to subject/background, Dither, glitch, and pixelate effects, VHS and CRT style looks, Hand-drawn warp and liquify, Film-style color grading, Collage and text tools

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter Monthly | $2.99 | per month |
| Supporter Yearly | $19.99 | per year |
| Lifetime Access | $59.99 | one-time |


## Frequently asked questions

### Is Calibration Flow free?

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

### Is Bitrot free?

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

### Do Calibration Flow or Bitrot have ads?

Neither Calibration Flow nor Bitrot shows ads.

### Which is updated more often, Calibration Flow or Bitrot?

Calibration Flow ships an update every 5 days, and Bitrot weekly. Most recently, Calibration Flow was updated on October 28, 2026 and Bitrot 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.*