# CogniPen vs Synapse

The clearest difference is iOS requirement: CogniPen at 13.0 against Synapse's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CogniPen sells 2 in-app purchases, starting at $9.99 per month and Synapse sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | CogniPen | Synapse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 86 MB | 27 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iradukunda usama](https://appshunter.io/developer/1848023785) | [Lu Hao](https://appshunter.io/developer/1860752801) |

## What reviewers say

### CogniPen

[App page](https://appshunter.io/ios/app/cognipen-ai-smart-notes/id6754354276)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | per month |
| Premium Yearly | $59.99 | per year |


### Synapse

[App page](https://appshunter.io/ios/app/synapse-ai-notes-and-tasks/id6756482583)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synapse Weekly Pro Subscription | $3.99 | per 7 days |
| Synapse Monthly Pro Subscription | $7.99 | per month |
| Synapse Yearly Pro Subscription | $49.99 | per year |


## Frequently asked questions

### Is CogniPen free?

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

### Is Synapse free?

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

### Do CogniPen or Synapse have ads?

Neither CogniPen nor Synapse shows ads.

---

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