# Study Key vs Sensory Scribe

The clearest difference is in-app purchases: Study Key at none against Sensory Scribe's 1. Study Key also leads on update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sensory Scribe sells 1 one-off in-app purchase. Study Key asks for nothing beyond the download.

Study Key ships an update every 3 weeks, Sensory Scribe every 5 months. Both last shipped on September 9, 2026.

## The numbers

| Metric | Study Key | Sensory Scribe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Size | 20 MB | 3 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LEAN TRANSITION SOLUTIONS LIMITED](https://appshunter.io/developer/1071218576) | [Sensory App House Ltd](https://appshunter.io/developer/1361994084) |

## What reviewers say

### Study Key

[App page](https://appshunter.io/ios/app/study-key/id1634610509)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sensory Scribe

[App page](https://appshunter.io/ios/app/sensory-scribe/id6740238007)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Playback | $0.99 | one-time |


## Frequently asked questions

### Is Study Key free?

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

### Is Sensory Scribe free?

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

### Do Study Key or Sensory Scribe have ads?

Neither Study Key nor Sensory Scribe shows ads.

### Which is updated more often, Study Key or Sensory Scribe?

Study Key ships an update every 3 weeks, and Sensory Scribe every 5 months. Most recently, Study Key was updated on September 9, 2026 and Sensory Scribe on September 9, 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.*