# Intermittent Fasting vs Tact

The clearest difference is iOS requirement: Intermittent Fasting at 12.0 against Tact's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Intermittent Fasting sells 2 in-app purchases, starting at $3.99 per 7 days and Tact sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Intermittent Fasting | Tact |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 30 MB | 6 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Manuel Worlitzer](https://appshunter.io/developer/1785527240) | [Sungjun Lim](https://appshunter.io/developer/6786608162) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-plan/id6749179087)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intermittent Fasting Premium | $3.99 | per 7 days |
| Intermittent Fasting Premium | $19.99 | per year |


### Tact

[App page](https://appshunter.io/ios/app/tact-walking-pace-coach/id6786612630)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tact Tier1 | $4.99 | one-time |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is Tact free?

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

### Do Intermittent Fasting or Tact have ads?

Neither Intermittent Fasting nor Tact shows ads.

### Which is updated more often, Intermittent Fasting or Tact?

Intermittent Fasting ships an update fortnightly, and Tact fortnightly. Most recently, Intermittent Fasting was updated on October 28, 2026 and Tact on October 25, 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.*