# FastTrackr vs Simple Calorie Tracker

The clearest difference is in-app purchases: FastTrackr at none against Simple Calorie Tracker's 2. FastTrackr also leads on iOS requirement (16.0 vs 18.0). Simple Calorie Tracker's advantage is update cadence (every 2 days vs fortnightly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Simple Calorie Tracker sells 2 in-app purchases, starting at $9.99 per month. FastTrackr asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for FastTrackr against 5.0 for Simple Calorie Tracker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

FastTrackr ships an update fortnightly, Simple Calorie Tracker every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | FastTrackr | Simple Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fasttrackr-fasting-tracker/id6760088716/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/simple-calorie-tracker-calvin/id6790968217/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Freemium | Freemium |
| Size | 84 MB | 18 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [NEW VERSION LIMITED](https://appshunter.io/developer/1809498455) | [Kevin Miguel Estrada Garcia](https://appshunter.io/developer/6790968219) |

## What reviewers say

### FastTrackr

[App page](https://appshunter.io/ios/app/fasttrackr-fasting-tracker/id6760088716)

This app helps users track intermittent fasting with personalized plans and an AI assistant. It offers features for logging meals, water, and weight, along with insights into ketosis and autophagy zones. Users can also access recipes and meal planning tools.

**Highlights:** Intermittent fasting timer with ketosis zones, AI assistant for personalized guidance, Meal logging with AI calorie estimation, Water and weight tracking, Recipe library and meal planning, Progress charts and streaks

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

**In-app purchases:** none


### Simple Calorie Tracker

[App page](https://appshunter.io/ios/app/simple-calorie-tracker-calvin/id6790968217)

This app uses AI to help you track your calorie and macro intake. It offers features like barcode scanning, food search, and weight tracking. It also syncs with health platforms and provides personalized insights based on your data.

**Highlights:** AI meal photo scan, Barcode scanning, Food database search, Manual macro logging, Weight tracking with trend line, Apple Health & Google Health sync, Home and Lock Screen widgets

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calvin Plus | $9.99 | per month |
| Calvin Plus Annual | $49.99 | per year |


## Frequently asked questions

### Is FastTrackr free?

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

### Is Simple Calorie Tracker free?

Simple Calorie Tracker is free to download, with in-app purchases available.

### Which has better reviews, FastTrackr or Simple Calorie Tracker?

FastTrackr and Simple Calorie Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do FastTrackr or Simple Calorie Tracker have ads?

Neither FastTrackr nor Simple Calorie Tracker shows ads.

### Which is updated more often, FastTrackr or Simple Calorie Tracker?

FastTrackr ships an update fortnightly, and Simple Calorie Tracker every 2 days. Most recently, FastTrackr was updated on October 31, 2026 and Simple Calorie Tracker 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.*