# CiaOn vs NutriOS

The clearest difference is in-app purchases: CiaOn at none against NutriOS's 2. NutriOS's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NutriOS sells 2 in-app purchases, starting at $5.99 per month. CiaOn asks for nothing beyond the download.

CiaOn ships an update fortnightly, NutriOS weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CiaOn | NutriOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (60 ratings)](https://appshunter.io/ios/app/ciaon/id587340621/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 58.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | — |
| Size | 64 MB | 71 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Cia Athletica](https://appshunter.io/developer/983359559) | [Quaresma Tech](https://appshunter.io/developer/6789160230) |

## What reviewers say

### CiaOn

[App page](https://appshunter.io/ios/app/ciaon/id587340621)

Access your personalized workout plans and weight training schedules on the go. Follow exclusive exercise programs, view class schedules, and track your fitness progress with custom graphs. Stay informed with expert articles and find the best times to visit your gym.

**Highlights:** Personalized workout programming, Weight training schedules, Exclusive exercise programs, Gym class schedules, Fitness progress tracking, Digital gym membership card, Expert articles

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

**In-app purchases:** none


### NutriOS

[App page](https://appshunter.io/ios/app/nutrios/id6789173222)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NutriOS Plus Mensal | $5.99 | per month |
| NutriOS Plus Anual | $49.99 | per year |


## Frequently asked questions

### Is CiaOn free?

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

### Is NutriOS free?

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

### Do CiaOn or NutriOS have ads?

Neither CiaOn nor NutriOS shows ads.

### Which is updated more often, CiaOn or NutriOS?

CiaOn ships an update fortnightly, and NutriOS weekly. Most recently, CiaOn was updated on October 24, 2026 and NutriOS 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.*