# Zzzify vs Intervo

The clearest difference is price: Zzzify at Free against Intervo's $0.99. Intervo's advantage is update cadence (weekly vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Zzzify is free to download; Intervo costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Zzzify ships an update every 3 months, Intervo weekly. Both last shipped on October 4, 2026.

## The numbers

| Metric | Zzzify | Intervo |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 4 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [ERX CONNECT](https://appshunter.io/developer/1857256598) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### Zzzify

[App page](https://appshunter.io/ios/app/zzzify-nap-timer-and-sleep/id6755915310)

**Features:** macOS Compatibility

**In-app purchases:** none


### Intervo

[App page](https://appshunter.io/ios/app/intervo-hiit-interval-timer/id6775499898)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zzzify free?

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

### Is Intervo free?

Intervo costs $0.99, with no in-app purchases.

### Do Zzzify or Intervo have ads?

Neither Zzzify nor Intervo shows ads.

### Which is updated more often, Zzzify or Intervo?

Zzzify ships an update every 3 months, and Intervo weekly. Most recently, Zzzify was updated on October 4, 2026 and Intervo on October 4, 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.*