# Tag vs Just Fasting

The clearest difference is in-app purchases: Just Fasting at none against Tag's 8. Just Fasting also leads on update cadence (every 2 days vs every 5 days). Tag's advantage is iOS requirement (17.0 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Tag sells 8 in-app purchases, starting at $0.99 per month. Just Fasting asks for nothing beyond the download.

Tag ships an update every 5 days, Just Fasting every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Tag | Just Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/just-fasting/id6761426623/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Free |
| Size | 25 MB | 2 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bread technologies inc](https://appshunter.io/developer/1476303481) | [Matthew Clark](https://appshunter.io/developer/1797183728) |

## What reviewers say

### Tag

[App page](https://appshunter.io/ios/app/tag-fast-water-tracker/id6746683045)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| tag monthly | $0.99 | per month |
| monthly subscription | $0.99 | per month |
| Weekly Access | $1.99 | per 7 days |
| monthly subscription | $2.99 | per month |
| 3 month subscription | $2.99 | per 3 months |
| 3 month subscription | $3.99 | per 3 months |
| yearly access | $9.99 | per year |
| Yearly Access | $19.99 | per year |


### Just Fasting

[App page](https://appshunter.io/ios/app/just-fasting/id6761426623)

This app helps you track your fasting periods with a simple, uncluttered interface. Easily start custom fasts of varying lengths and monitor your progress with detailed statistics. It's designed to be unobtrusive and straightforward for your intermittent fasting journey.

**Highlights:** Customizable fast durations (hours and days), One-tap start for common fasts, Visual countdown and progress arc, Detailed fasting statistics, Streak tracking, Remember last fast length

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

**In-app purchases:** none


## Frequently asked questions

### Is Tag free?

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

### Is Just Fasting free?

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

### Do Tag or Just Fasting have ads?

Neither Tag nor Just Fasting shows ads.

### Which is updated more often, Tag or Just Fasting?

Tag ships an update every 5 days, and Just Fasting every 2 days. Most recently, Tag was updated on October 30, 2026 and Just Fasting on October 31, 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.*