# Fastily vs Intervo

The clearest difference is price: Fastily at Free against Intervo's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

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

Fastily ships an update every 4 days, Intervo weekly. Both last shipped on September 15, 2026.

## The numbers

| Metric | Fastily | Intervo |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 25 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Filippa Steiner](https://appshunter.io/developer/1761850983) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### Fastily

[App page](https://appshunter.io/ios/app/fastily-intermittent-fasting/id6763754271)

**Features:** macOS Compatibility

**In-app purchases:** none


### Intervo

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Fastily free?

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

### Is Intervo free?

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

### Do Fastily or Intervo have ads?

Neither Fastily nor Intervo shows ads.

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

Fastily ships an update every 4 days, and Intervo weekly. Most recently, Fastily was updated on September 15, 2026 and Intervo on September 15, 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.*