# Synapsi vs FlashHack

The clearest difference is update cadence: Synapsi at every 2 days against FlashHack's every 2 weeks. FlashHack's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Synapsi sells 2 in-app purchases, starting at $9.99 per month and FlashHack sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Synapsi ships an update every 2 days, FlashHack every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Synapsi | FlashHack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flashhack-ai-flashcard-maker/id6782763586/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 78 MB | 66 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Khoa Tran](https://appshunter.io/developer/1523512472) | [Luna Wishlist](https://appshunter.io/developer/1737626706) |

## What reviewers say

### Synapsi

[App page](https://appshunter.io/ios/app/synapsi-ai-study-notes/id6780159251)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synapsi Pro Monthly | $9.99 | per month |
| Synapsi Pro Yearly | $48.00 | per year |


### FlashHack

[App page](https://appshunter.io/ios/app/flashhack-ai-flashcard-maker/id6782763586)

Transform notes and documents into smart study decks with AI-powered flashcards. Utilize spaced repetition for effective learning and ask AI questions directly about your content. Track progress and personalize study materials.

**Highlights:** AI flashcard generation from documents, Spaced repetition study system, Chat Q&A for content-specific questions, Handwritten note scanning, PDF and image uploads, Progress tracking per deck, Customizable flashcards

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlashHack Premium Monthly | $1.99 | per month |
| FlashHack Premium Annual | $13.99 | per year |


## Frequently asked questions

### Is Synapsi free?

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

### Is FlashHack free?

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

### Do Synapsi or FlashHack have ads?

Neither Synapsi nor FlashHack shows ads.

### Which is updated more often, Synapsi or FlashHack?

Synapsi ships an update every 2 days, and FlashHack every 2 weeks. Most recently, Synapsi was updated on October 24, 2026 and FlashHack on October 25, 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.*