# Codexial Prep vs Sereni

The clearest difference is update cadence: Sereni at every 2 days against Codexial Prep's every 12 months. Codexial Prep's advantage is iOS requirement (14.2 vs 16.0). 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.

Codexial Prep ships an update every 12 months, Sereni every 2 days. The most recent releases landed on September 28, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Codexial Prep | Sereni |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 days** |
| Size | 107 MB | 56 MB |
| Requires iOS | **14.2** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Codexial Dermatologie](https://appshunter.io/developer/1703569019) | [richard loffler](https://appshunter.io/developer/1893301414) |

## What reviewers say

### Codexial Prep

[App page](https://appshunter.io/ios/app/codexial-prep/id1489954858)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sereni

[App page](https://appshunter.io/ios/app/sereni/id6772702940)

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

**In-app purchases:** none


## Frequently asked questions

### Is Codexial Prep free?

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

### Is Sereni free?

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

### Do Codexial Prep or Sereni have ads?

Neither Codexial Prep nor Sereni shows ads.

### Which is updated more often, Codexial Prep or Sereni?

Codexial Prep ships an update every 12 months, and Sereni every 2 days. Most recently, Codexial Prep was updated on September 28, 2026 and Sereni on October 13, 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.*