# Calorie Tracker vs Redgym Open

The clearest difference is in-app purchases: Redgym Open at none against Calorie Tracker's 4. Calorie Tracker's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calorie Tracker sells 4 in-app purchases, starting at $9.99 per month. Redgym Open asks for nothing beyond the download.

Calorie Tracker ships an update every 5 weeks, Redgym Open every 3 months. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Calorie Tracker | Redgym Open |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 90 MB | 57 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tat Wah Chan](https://appshunter.io/developer/1832432621) | [SENKRON BILGISAYAR OTOM LTD.](https://appshunter.io/developer/498226578) |

## What reviewers say

### Calorie Tracker

[App page](https://appshunter.io/ios/app/calorie-tracker-nutrix-ai/id6749846460)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nutrix AI Monthly | $9.99 | per month |
| Monthly Plan | $9.99 | per month |
| Nutrix AI Yearly | $29.99 | per year |
| Yearly Plan | $29.99 | per year |


### Redgym Open

[App page](https://appshunter.io/ios/app/redgym-open/id6751410042)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calorie Tracker free?

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

### Is Redgym Open free?

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

### Do Calorie Tracker or Redgym Open have ads?

Neither Calorie Tracker nor Redgym Open shows ads.

### Which is updated more often, Calorie Tracker or Redgym Open?

Calorie Tracker ships an update every 5 weeks, and Redgym Open every 3 months. Most recently, Calorie Tracker was updated on October 30, 2026 and Redgym Open on November 8, 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.*