# Sleepster vs Shifted by TS Training

The clearest difference is in-app purchases: Shifted by TS Training at none against Sleepster's 5. Shifted by TS Training also leads on update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sleepster sells 5 one-off in-app purchases. Shifted by TS Training asks for nothing beyond the download.

Sleepster ships an update every 4 months, Shifted by TS Training fortnightly. The most recent releases landed on October 23, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sleepster | Shifted by TS Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/sleepster/id417667154/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 87.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 120 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Dean Andreakis](https://appshunter.io/developer/417667157) | [TS Training Corp](https://appshunter.io/developer/1859022270) |

## What reviewers say

### Sleepster

[App page](https://appshunter.io/ios/app/sleepster/id417667154)

Drift off peacefully with immersive nature sounds and stunning animated backgrounds. This app offers advanced sound mixing and customizable visuals to create your perfect bedtime atmosphere for better sleep.

**Highlights:** Advanced multi-sound mixing, Mesmerizing animated backgrounds, Smart sleep timer, Full-screen sleep mode, Background audio support, Customizable themes

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generous Tip | $0.99 | one-time |
| Rotate Multiple Backgrounds | $0.99 | one-time |
| Multiple Sounds | $0.99 | one-time |
| Massive Tip | $1.99 | one-time |
| Amazing Tip | $4.99 | one-time |


### Shifted by TS Training

[App page](https://appshunter.io/ios/app/shifted-by-ts-training/id6756196181)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sleepster free?

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

### Is Shifted by TS Training free?

Shifted by TS Training is free to download, with no in-app purchases.

### Do Sleepster or Shifted by TS Training have ads?

Neither Sleepster nor Shifted by TS Training shows ads.

### Which is updated more often, Sleepster or Shifted by TS Training?

Sleepster ships an update every 4 months, and Shifted by TS Training fortnightly. Most recently, Sleepster was updated on October 23, 2026 and Shifted by TS Training on October 2, 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.*