# Protocol Zero vs Repwell

The clearest difference is in-app purchases: Repwell at none against Protocol Zero's 5. Repwell also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Protocol Zero sells 5 in-app purchases, starting at $12.99 per month. Repwell asks for nothing beyond the download.

## The numbers

| Metric | Protocol Zero | Repwell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (182 ratings)](https://appshunter.io/ios/app/protocol-zero-sleep-sounds/id6755014746/reviews)** | — |
| Number of ratings | **182** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | — |
| Monetization | Subscription | — |
| Size | 123 MB | 35 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [HumanOS LLC](https://appshunter.io/developer/1851339721) | [Joseph Ernst](https://appshunter.io/developer/1895793825) |

## What reviewers say

### Protocol Zero

[App page](https://appshunter.io/ios/app/protocol-zero-sleep-sounds/id6755014746)

This app provides a personalized daily plan to improve sleep quality, incorporating science-backed techniques and sleep sounds. It guides users through setting consistent wake times, managing caffeine intake, and activating wind-down routines for better rest.

**Highlights:** Personalized daily sleep plan, Sleep sounds (white noise, rain), Consistent wake time guidance, Caffeine cutoff reminders, Wind-down mode, CBT-I techniques

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protocol Zero Monthly | $12.99 | per month |
| Protocol Zero Annual Starter | $19.99 | per year |
| Protocol Zero Annual | $29.99 | per year |
| Protocol Zero Pro | $39.99 | per year |
| Protocol Zero Pro | $59.99 | per year |


### Repwell

[App page](https://appshunter.io/ios/app/repwell-workout-tracker/id6764467169)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protocol Zero free?

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

### Is Repwell free?

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

### Do Protocol Zero or Repwell have ads?

Protocol Zero shows ads; Repwell does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*