# Synapse vs Audio_Cards

The clearest difference is in-app purchases: Audio_Cards at none against Synapse's 2. Audio_Cards also leads on update cadence (every 10 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Synapse sells 2 in-app purchases, starting at $79.99 per year. Audio_Cards asks for nothing beyond the download.

Synapse ships an update every 5 weeks, Audio_Cards every 10 days. The most recent releases landed on September 18, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Synapse | Audio_Cards |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 8 MB | 30 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roi Rozenthal](https://appshunter.io/developer/6775226779) | [Joshua McMahon](https://appshunter.io/developer/6783609354) |

## What reviewers say

### Synapse

[App page](https://appshunter.io/ios/app/synapse-flashcard-maker/id6780468536)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synapse Premium | $79.99 | per year |
| Synapse Premium — Lifetime | $99.99 | one-time |


### Audio_Cards

[App page](https://appshunter.io/ios/app/audio-cards/id6783609352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Synapse free?

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

### Is Audio_Cards free?

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

### Do Synapse or Audio_Cards have ads?

Neither Synapse nor Audio_Cards shows ads.

### Which is updated more often, Synapse or Audio_Cards?

Synapse ships an update every 5 weeks, and Audio_Cards every 10 days. Most recently, Synapse was updated on September 18, 2026 and Audio_Cards on September 26, 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.*