# zZZ vs SimpleRX

The clearest difference is in-app purchases: zZZ at none against SimpleRX's 1. zZZ also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (17.0 vs 26.5). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. SimpleRX sells 1 one-off in-app purchase. zZZ asks for nothing beyond the download.

zZZ ships an update every 2 days, SimpleRX every 5 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | zZZ | SimpleRX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simplerx-medication-tracker/id6784418806/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Free | Free |
| Size | 41 MB | 13 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [子龙 郭](https://appshunter.io/developer/1499776496) | [Luke Heyne](https://appshunter.io/developer/6782407650) |

## What reviewers say

### zZZ

[App page](https://appshunter.io/ios/app/zzz-sleep-tracker/id6476821635)

This app analyzes your sleep patterns using data from your Apple Watch and Apple Health. It provides detailed sleep stage diagrams, trends, and insights to help you understand and improve your sleep quality. Features include tracking sleep history, heart rate, and respiratory rate.

**Highlights:** Automatic sleep detection with Apple Watch, Detailed sleep stage analysis (Awake, REM, Core, Deep), Sleep history tracking (Day, Week, Month, Custom), Monitoring of heart rate and respiratory rate during sleep, Sleep quality rating and improvement suggestions, Watch app support, Privacy-focused data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### SimpleRX

[App page](https://appshunter.io/ios/app/simplerx-medication-tracker/id6784418806)

This app helps users manage their medications with automatic reminders and refill alerts. It also offers features for caregivers to monitor adherence and provides crucial medical information for emergencies.

**Highlights:** Medication tracking and reminders, Barcode scanning for prescriptions, Refill alerts, Caregiver monitoring, Drug interaction checker, Medical ID card, Printable EMS Quick Reference Card

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock SimpleRX | $2.99 | one-time |


## Frequently asked questions

### Is zZZ free?

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

### Is SimpleRX free?

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

### Do zZZ or SimpleRX have ads?

Neither zZZ nor SimpleRX shows ads.

### Which is updated more often, zZZ or SimpleRX?

zZZ ships an update every 2 days, and SimpleRX every 5 days. Most recently, zZZ was updated on October 6, 2026 and SimpleRX on October 24, 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.*