# Rest AI vs Cardiographer

Rest AI and Cardiographer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Rest AI sells 2 in-app purchases, starting at $9.99 per month and Cardiographer sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Rest AI ships an update weekly, Cardiographer every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Rest AI | Cardiographer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/rest-ai/id6755010789/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 10 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NovaBuild, Inc.](https://appshunter.io/developer/1848247053) | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) |

## What reviewers say

### Rest AI

[App page](https://appshunter.io/ios/app/rest-ai/id6755010789)

Understand your body's hydration, stress, energy, and recovery with AI-powered facial scans. Get personalized wellness guidance without complex tracking. Simply scan your face to receive clear, actionable insights for better daily well-being.

**Highlights:** AI-powered facial scans, Personalized wellness insights, Hydration and stress tracking, Daily wellness guidance, Simple, non-invasive analysis, No complex data logging

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Annually | $29.99 | per year |


### Cardiographer

[App page](https://appshunter.io/ios/app/cardiographer/id6782079327)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription | $1.99 | per month |


## Frequently asked questions

### Is Rest AI free?

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

### Is Cardiographer free?

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

### Do Rest AI or Cardiographer have ads?

Neither Rest AI nor Cardiographer shows ads.

### Which is updated more often, Rest AI or Cardiographer?

Rest AI ships an update weekly, and Cardiographer every 2 weeks. Most recently, Rest AI was updated on October 30, 2026 and Cardiographer 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.*