# SleepStack vs Wavy

The clearest difference is update cadence: Wavy at every 3 days against SleepStack's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SleepStack sells 3 in-app purchases, starting at $4.99 per 7 days and Wavy sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

SleepStack ships an update every 10 days, Wavy every 3 days. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SleepStack | Wavy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sleepstack-sleep-protocol/id6760767864/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 13 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [NUNE LLC](https://appshunter.io/developer/1838850912) | [Alvaro Gonzalez Manzanares](https://appshunter.io/developer/1888482778) |

## What reviewers say

### SleepStack

[App page](https://appshunter.io/ios/app/sleepstack-sleep-protocol/id6760767864)

This app helps you build better sleep habits with guided routines, sleep tracking, and relaxation techniques. It monitors your sleep environment and provides feedback to improve your rest and morning recovery. Protect your sleep from phone distractions with app blocking features.

**Highlights:** Personalized bedtime routine builder, Sleep Score and insights tracking, Guided relaxation techniques, App blocking for sleep protection, Sleep environment monitoring, Morning energy and recovery feedback, Gamified sleep habit tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepStack Pro weekly | $4.99 | per 7 days |
| SleepStack Pro Yearly | $29.99 | per year |
| SleepStack Yearly | $59.99 | per year |


### Wavy

[App page](https://appshunter.io/ios/app/wavy-calm-and-wellness/id6761263362)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wavy+ Monthly | $7.99 | per month |
| Wavy+ Yearly | $29.99 | per year |


## Frequently asked questions

### Is SleepStack free?

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

### Is Wavy free?

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

### Do SleepStack or Wavy have ads?

Neither SleepStack nor Wavy shows ads.

### Which is updated more often, SleepStack or Wavy?

SleepStack ships an update every 10 days, and Wavy every 3 days. Most recently, SleepStack was updated on October 3, 2026 and Wavy on October 16, 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.*