# CadenceSync vs Slumber Nightwave

The clearest difference is in-app purchases: Slumber Nightwave at none against CadenceSync's 1. Slumber Nightwave also leads on update cadence (every 3 days vs every 3 weeks) and device support (3 vs 1). CadenceSync's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. CadenceSync sells 1 one-off in-app purchase. Slumber Nightwave asks for nothing beyond the download.

CadenceSync ships an update every 3 weeks, Slumber Nightwave every 3 days. The most recent releases landed on September 26, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CadenceSync | Slumber Nightwave |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 17 MB | 27 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Hamiter](https://appshunter.io/developer/1482332471) | [Anh Nguyen](https://appshunter.io/developer/1886060562) |

## What reviewers say

### CadenceSync

[App page](https://appshunter.io/ios/app/cadencesync/id6747299816)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CadenceSync Pro Unlock | $4.99 | one-time |


### Slumber Nightwave

[App page](https://appshunter.io/ios/app/slumber-nightwave/id6760747032)

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

**In-app purchases:** none


## Frequently asked questions

### Is CadenceSync free?

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

### Is Slumber Nightwave free?

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

### Do CadenceSync or Slumber Nightwave have ads?

Slumber Nightwave shows ads; CadenceSync does not.

### Which is updated more often, CadenceSync or Slumber Nightwave?

CadenceSync ships an update every 3 weeks, and Slumber Nightwave every 3 days. Most recently, CadenceSync was updated on September 26, 2026 and Slumber Nightwave on October 5, 2026.

---

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