# OpenNutriTracker vs Calidus

The clearest difference is rating: OpenNutriTracker at 4.3 against Calidus's 4.0. OpenNutriTracker also leads on ratings volume (15 vs 1) and iOS requirement (15.5 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OpenNutriTracker holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: OpenNutriTracker has 15 ratings behind it against 1, so its average is the more settled of the two.

OpenNutriTracker ships an update monthly, Calidus every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | OpenNutriTracker | Calidus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (15 ratings)](https://appshunter.io/ios/app/opennutritracker/id6451490901/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/calidus-calorie-tracker/id6778625160/reviews) |
| Number of ratings | **15** | 1 |
| Positive reviews | 68.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 13 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon Oppowa](https://appshunter.io/developer/1698527681) | [MANEO HOUSE LC](https://appshunter.io/developer/1896179257) |

## What reviewers say

### OpenNutriTracker

[App page](https://appshunter.io/ios/app/opennutritracker/id6451490901)

This app offers a straightforward way to monitor your daily food intake and analyze nutritional information. It features a food diary, custom meal planning, and a barcode scanner for easy logging. Prioritizing user privacy, it provides a completely free and ad-free experience.

**Highlights:** Nutritional tracking, Food diary, Custom meal planning, Barcode scanner, Privacy focused, Open-source

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

**In-app purchases:** none


### Calidus

[App page](https://appshunter.io/ios/app/calidus-calorie-tracker/id6778625160)

Track your daily food intake, calories, and macros with a comprehensive food diary. Log meals, build custom recipes, monitor water and weight, and utilize fasting timers. Integrates with Apple Health for a holistic view of your health.

**Highlights:** Food logging with barcode scanning, Custom recipe builder, Water and weight tracking, Fasting timers and schedules, Apple Health integration, AI-powered recipe component drafting

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenNutriTracker free?

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

### Is Calidus free?

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

### Which has better reviews, OpenNutriTracker or Calidus?

OpenNutriTracker is rated higher. OpenNutriTracker averages 4.3 out of 5 from 15 ratings, while Calidus averages 4.0 from 1 ratings.

### Do OpenNutriTracker or Calidus have ads?

Neither OpenNutriTracker nor Calidus shows ads.

### Which is updated more often, OpenNutriTracker or Calidus?

OpenNutriTracker ships an update monthly, and Calidus every 3 weeks. Most recently, OpenNutriTracker was updated on October 25, 2026 and Calidus on October 25, 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.*