# Fasty vs Fasting Diary

The clearest difference is review sentiment: Fasty at 100% against Fasting Diary's 43%. Fasty also leads on in-app purchases (none vs 4). Fasting Diary's advantage is update cadence (fortnightly vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fasting Diary sells 4 in-app purchases, starting at $0.99 per month. Fasty asks for nothing beyond the download.

Fasty ships an update every 16 months, Fasting Diary fortnightly. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Fasty | Fasting Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/fasty-fasting-tracker/id1596329455/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **100.0% of reviews** | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 63 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Forest and the Trees, LLC](https://appshunter.io/developer/1596329457) | [Dimo Co.,Ltd.](https://appshunter.io/developer/495557603) |

## What reviewers say

### Fasty

[App page](https://appshunter.io/ios/app/fasty-fasting-tracker/id1596329455)

This app helps users track intermittent fasting by monitoring fasting days and eating periods. It supports weight tracking in both pounds and kilograms and does not collect user data.

**Highlights:** Intermittent fasting tracking, Weight tracking, Fasting day monitoring, Eating period logging, Pound and kilogram support, No data collection

**In-app purchases:** none


### Fasting Diary

[App page](https://appshunter.io/ios/app/fasting-diary-if-tracker/id6483368664)

This app helps users achieve their weight loss and health goals through intermittent fasting. It provides guidance, motivation, and customizable fasting schedules to support users in burning fat, boosting energy, and improving metabolic health.

**Highlights:** Customizable fasting schedules, Plans for beginners and experts, One-tap start/stop for fasting, Adjustable eating and fasting times, Fasting alerts and reminders

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $0.99 | per month |
| Pro 3 months | $1.99 | per 3 months |
| Pro yearly | $2.99 | per year |
| Pro | $2.99 | one-time |


## Frequently asked questions

### Is Fasty free?

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

### Is Fasting Diary free?

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

### Do Fasty or Fasting Diary have ads?

Neither Fasty nor Fasting Diary shows ads.

### Which is updated more often, Fasty or Fasting Diary?

Fasty ships an update every 16 months, and Fasting Diary fortnightly. Most recently, Fasty was updated on October 1, 2026 and Fasting Diary on October 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.*