# Synapse vs PenIt AI

The clearest difference is iOS requirement: Synapse at 15.1 against PenIt AI's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Synapse sells 3 in-app purchases, starting at $6.99 per 7 days and PenIt AI sells 5 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Synapse ships an update every 11 days, PenIt AI every 9 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Synapse | PenIt AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/synapse-education/id6751501662/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 63 MB | 4 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [The Cooking Company](https://appshunter.io/developer/1835413725) | [Jim Mayers](https://appshunter.io/developer/1850813452) |

## What reviewers say

### Synapse

[App page](https://appshunter.io/ios/app/synapse-education/id6751501662)

Transform your study materials into interactive learning tools. This app generates structured lessons, personalized quizzes, and mind maps from notes, documents, or audio recordings. It offers AI-powered tutoring and spaced repetition for effective memorization and collaborative study features.

**Highlights:** Scan and import notes, documents, and audio, AI-generated structured lessons and summaries, Personalized quizzes and practice exercises, Intelligent spaced repetition for memory retention, Collaborative study communities, AI tutor for concept explanation and correction

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Monthly | $19.99 | per month |
| Yearly | $99.99 | per year |


### PenIt AI

[App page](https://appshunter.io/ios/app/penit-ai/id6788761925)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PenIt AI Pro Monthly | $6.99 | per month |
| Basic | $7.99 | per month |
| PenIt AI Pro Yearly | $49.99 | per year |
| Basic | $74.99 | per year |
| Pemium | $299.99 | per year |


## Frequently asked questions

### Is Synapse free?

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

### Is PenIt AI free?

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

### Do Synapse or PenIt AI have ads?

Neither Synapse nor PenIt AI shows ads.

### Which is updated more often, Synapse or PenIt AI?

Synapse ships an update every 11 days, and PenIt AI every 9 days. Most recently, Synapse was updated on October 15, 2026 and PenIt AI on October 14, 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.*