# Simplicity Personal Training vs Sleep Aid

The clearest difference is in-app purchases: Simplicity Personal Training at none against Sleep Aid's 1. Sleep Aid's advantage is update cadence (daily vs every 2 months) and iOS requirement (11.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Aid sells 1 in-app purchase, starting at $3.99 per month. Simplicity Personal Training asks for nothing beyond the download.

Simplicity Personal Training ships an update every 2 months, Sleep Aid daily. The most recent releases landed on October 7, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Simplicity Personal Training | Sleep Aid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/sleep-aid-for-shift-workers/id6504048232/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | — | Subscription |
| Size | 159 MB | 27 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Trustee for Butterfly Enterprises Trust](https://appshunter.io/developer/1620926196) | [Tunde Alao](https://appshunter.io/developer/957218204) |

## What reviewers say

### Simplicity Personal Training

[App page](https://appshunter.io/ios/app/simplicity-personal-training/id1620926014)

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Sleep Aid

[App page](https://appshunter.io/ios/app/sleep-aid-for-shift-workers/id6504048232)

This app helps shift workers optimize their sleep schedules using scientific recommendations. It provides personalized sleep and coffee timing advice, and syncs with your work calendar for seamless planning. Improve your well-being with a consistent and restorative sleep cycle.

**Highlights:** Personalized sleep recommendations, Coffee timing tips, Work calendar sync, Health-optimized scheduling, Scientifically backed advice, User-friendly design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US | $3.99 | per month |


## Frequently asked questions

### Is Simplicity Personal Training free?

Simplicity Personal Training is free to download, with no in-app purchases.

### Is Sleep Aid free?

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

### Do Simplicity Personal Training or Sleep Aid have ads?

Neither Simplicity Personal Training nor Sleep Aid shows ads.

### Which is updated more often, Simplicity Personal Training or Sleep Aid?

Simplicity Personal Training ships an update every 2 months, and Sleep Aid daily. Most recently, Simplicity Personal Training was updated on October 7, 2026 and Sleep Aid on June 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.*