# InterFasting vs Weight Calendar

The clearest difference is update cadence: InterFasting at every 2 days against Weight Calendar's every 2 weeks. InterFasting also leads on ratings volume (267 vs 19). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. InterFasting sells 3 in-app purchases, starting at $3.99 per month and Weight Calendar sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for InterFasting against 4.9 for Weight Calendar. That said, the two scores are not equally well evidenced: InterFasting has 267 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 88% of InterFasting's written reviews are positive against 90% of Weight Calendar's.

InterFasting ships an update every 2 days, Weight Calendar every 2 weeks. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | InterFasting | Weight Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (267 ratings)](https://appshunter.io/ios/app/interfasting-fasting-timer/id1467464443/reviews) | **[4.9 (19 ratings)](https://appshunter.io/ios/app/weight-calendar-tracker-and-log/id6670779581/reviews)** |
| Number of ratings | **267** | 19 |
| Positive reviews | 88.4% of reviews | **90.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 85 MB | 84 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kim Yunhoo](https://appshunter.io/developer/1464827169) | [kim donghyun](https://appshunter.io/developer/1696243974) |

## What reviewers say

### InterFasting

[App page](https://appshunter.io/ios/app/interfasting-fasting-timer/id1467464443)

This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

**Highlights:** AI fasting schedule recommendations, AI food calorie calculation, Intermittent fasting timer, Customizable fasting plans, All-in-one health tracking, Fasting analysis and reports, Home screen widget

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $3.99 | per month |
| Gandan Premium Annual | $12.99 | per year |
| Premium User | $12.99 | one-time |


### Weight Calendar

[App page](https://appshunter.io/ios/app/weight-calendar-tracker-and-log/id6670779581)

Easily log your weight multiple times a day and visualize your progress on a calendar. Track body photos and diary entries alongside your weight to monitor changes. Set weight goals and view detailed graphs to support your fitness journey.

**Highlights:** Record morning and evening weight, Log body photos and diary entries, View weight on a calendar, Set target weight and date, Weight change graphs, Multi-language support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Food A Stickers | $0.49 | one-time |
| Exercise Stickers – Lifetime Access | $0.99 | one-time |
| Food B Stickers | $0.99 | one-time |
| Weight Calendar - Remove Ads | $3.99 | one-time |

**What reviewers like**

- 👍 Clean and simple UI
- 👍 Intuitive and easy to use
- 👍 Cute and aesthetic design
- 👍 Records morning and evening weight
- 👍 Good for tracking weight trends

**What reviewers complain about**

- 😠 Frequent and intrusive ads in free version
- 😠 Limited photo uploads (2-4 photos)
- 😠 Inconsistent weight comparison (evening vs. morning)
- 😠 Cannot input decimal weight values
- 😠 Photo quality degrades when viewed

**Reported bugs**

- Backup not working properly
- Goal weight text cut off on graph
- Weight progress not displaying correctly
- Units not converting correctly
- Cannot input decimal weight values

**Requested features**

- Add functionality to set multiple goals (e.g., weekly goals)
- Add option to choose weight comparison basis (morning vs. evening)
- Add more sticker designs
- Add more food sticker categories
- Add ability to write text in different colors in memo


## Frequently asked questions

### Is InterFasting free?

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

### Is Weight Calendar free?

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

### Which has better reviews, InterFasting or Weight Calendar?

Weight Calendar is rated higher. InterFasting averages 4.8 out of 5 from 267 ratings, while Weight Calendar averages 4.9 from 19 ratings.

### Do InterFasting or Weight Calendar have ads?

Both InterFasting and Weight Calendar show ads.

### Which is updated more often, InterFasting or Weight Calendar?

InterFasting ships an update every 2 days, and Weight Calendar every 2 weeks. Most recently, InterFasting was updated on September 22, 2026 and Weight Calendar on September 24, 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.*