# Sleeptock vs Erika Hypnotherapy

The clearest difference is in-app purchases: Erika Hypnotherapy at none against Sleeptock's 4. Sleeptock's advantage is update cadence (every 9 days vs every 17 months) and iOS requirement (12.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Sleeptock sells 4 one-off in-app purchases. Erika Hypnotherapy asks for nothing beyond the download.

Sleeptock ships an update every 9 days, Erika Hypnotherapy every 17 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Sleeptock | Erika Hypnotherapy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 17 months |
| Size | 18 MB | 51 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [scienceprod](https://appshunter.io/developer/1683570072) | [Transformation Starts Within LLC](https://appshunter.io/developer/1713497509) |

## What reviewers say

### Sleeptock

[App page](https://appshunter.io/ios/app/sleeptock/id6448126125)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Start Delay | $0.99 | one-time |
| Presets | $0.99 | one-time |
| Sound Pack | $0.99 | one-time |
| Bundle Offer | $1.99 | one-time |


### Erika Hypnotherapy

[App page](https://appshunter.io/ios/app/erika-hypnotherapy/id6470349934)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sleeptock free?

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

### Is Erika Hypnotherapy free?

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

### Do Sleeptock or Erika Hypnotherapy have ads?

Neither Sleeptock nor Erika Hypnotherapy shows ads.

### Which is updated more often, Sleeptock or Erika Hypnotherapy?

Sleeptock ships an update every 9 days, and Erika Hypnotherapy every 17 months. Most recently, Sleeptock was updated on October 25, 2026 and Erika Hypnotherapy on October 18, 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.*