# SYNAPSE vs Coef

The clearest difference is update cadence: Coef at every 4 days against SYNAPSE's every 3 weeks. 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.

SYNAPSE ships an update every 3 weeks, Coef every 4 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SYNAPSE | Coef |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 158 MB | 100 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [FORM'U](https://appshunter.io/developer/1764529616) | [Noe Guerin](https://appshunter.io/developer/6801919207) |

## What reviewers say

### SYNAPSE

[App page](https://appshunter.io/ios/app/synapse-learn/id6670785655)

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

**In-app purchases:** none


### Coef

[App page](https://appshunter.io/ios/app/coef/id6805438755)

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

**In-app purchases:** none


## Frequently asked questions

### Is SYNAPSE free?

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

### Is Coef free?

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

### Do SYNAPSE or Coef have ads?

Neither SYNAPSE nor Coef shows ads.

### Which is updated more often, SYNAPSE or Coef?

SYNAPSE ships an update every 3 weeks, and Coef every 4 days. Most recently, SYNAPSE was updated on October 19, 2026 and Coef on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*