# Engine vs Nuvo

The clearest difference is ads: Nuvo at none against Engine's shown. Nuvo also leads on update cadence (every 5 days vs every 10 days). Engine's advantage is iOS requirement (15.1 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Engine sells 2 in-app purchases, starting at $9.99 per month and Nuvo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Engine ships an update every 10 days, Nuvo every 5 days. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Engine | Nuvo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/nuvo-longevity-coach/id6762535065/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 54 MB | 9 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Les Nants](https://appshunter.io/developer/1807100390) | [Firefly Labs LLC](https://appshunter.io/developer/1894561345) |

## What reviewers say

### Engine

[App page](https://appshunter.io/ios/app/engine-boost-your-vo2max/id6756730497)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $39.99 | per year |


### Nuvo

[App page](https://appshunter.io/ios/app/nuvo-longevity-coach/id6762535065)

Measure your biological age using Apple Health data and blood tests. Track biomarkers, recovery, and habits to understand and improve your healthspan. Personalized recommendations help you live younger longer.

**Highlights:** Biological age calculation from Apple Health, Blood test report analysis, Daily recovery and strain scores, Healthy habit tracking, AI-powered personalized recommendations, On-device data encryption

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nuvo Premium Monthly | $4.99 | per month |
| Nuvo Premium Annual | $24.99 | per year |


## Frequently asked questions

### Is Engine free?

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

### Is Nuvo free?

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

### Do Engine or Nuvo have ads?

Engine shows ads; Nuvo does not.

### Which is updated more often, Engine or Nuvo?

Engine ships an update every 10 days, and Nuvo every 5 days. Most recently, Engine was updated on September 30, 2026 and Nuvo on October 7, 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.*