# Space Decks vs Synaps

The clearest difference is in-app purchases: Space Decks at none against Synaps's 4. Synaps's advantage is iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Synaps sells 4 in-app purchases, starting at $1.99 per 7 days. Space Decks asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on September 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Space Decks | Synaps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/space-decks/id6757076853/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free | — |
| Size | 4 MB | 59 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dor Pascal](https://appshunter.io/developer/1773249483) | [Mudimedia Ltd](https://appshunter.io/developer/1641931784) |

## What reviewers say

### Space Decks

[App page](https://appshunter.io/ios/app/space-decks/id6757076853)

This app uses spaced repetition to help you memorize information for the long term. It supports importing existing flashcard decks and offers a clean, distraction-free study interface with full offline capabilities.

**Highlights:** Spaced repetition scheduling, Import .apkg flashcard decks, Supports basic, reversed, and cloze cards, Native audio, image, and video support, Clean, distraction-free interface, Full offline support, Dark mode support

**Features:** Vision Pro support

**In-app purchases:** none


### Synaps

[App page](https://appshunter.io/ios/app/synaps-flashcards-and-memory/id6761515969)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Annual | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Space Decks free?

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

### Is Synaps free?

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

### Do Space Decks or Synaps have ads?

Neither Space Decks nor Synaps shows ads.

### Which is updated more often, Space Decks or Synaps?

Space Decks ships an update every 5 days, and Synaps every 5 days. Most recently, Space Decks was updated on September 25, 2026 and Synaps on October 16, 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.*