# CalkCal vs Fasting Diary

The clearest difference is in-app purchases: CalkCal at none against Fasting Diary's 4. CalkCal also leads on review sentiment (58% vs 43%) and iOS requirement (8.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

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

CalkCal ships an update every 9 days, Fasting Diary fortnightly. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CalkCal | Fasting Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/calkcal/id983189383/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **58.5% of reviews** | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 63 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PUN CORPORATION CO., LTD.](https://appshunter.io/developer/648271023) | [Dimo Co.,Ltd.](https://appshunter.io/developer/495557603) |

## What reviewers say

### CalkCal

[App page](https://appshunter.io/ios/app/calkcal/id983189383)

This app helps users seriously lose weight by tracking daily calorie intake and expenditure from activities and sports. It offers a database of over 2,000 food items and numerous sports, with the ability to add custom entries. The system calculates daily calorie needs based on weight loss goals and provides progress through graphs and data.

**Highlights:** Calorie intake tracking, Calorie expenditure tracking, Food database with 2,000+ items, Custom food entry, Activity and sport logging, Daily calorie calculation for goals, Progress graphs and data visualization

**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 CalkCal free?

CalkCal 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 CalkCal or Fasting Diary have ads?

Neither CalkCal nor Fasting Diary shows ads.

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

CalkCal ships an update every 9 days, and Fasting Diary fortnightly. Most recently, CalkCal was updated on October 11, 2026 and Fasting Diary on October 7, 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.*