# Open Vitals vs base.

The clearest difference is in-app purchases: base. at none against Open Vitals's 2. base. also leads on update cadence (every 9 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Open Vitals sells 2 in-app purchases, starting at $0.99 per month. base. asks for nothing beyond the download.

Open Vitals ships an update every 6 weeks, base. every 9 days. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Open Vitals | base. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Size | 2 MB | 192 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Robson da Silva Tedim](https://appshunter.io/developer/6773071349) | [Judson Dunne](https://appshunter.io/developer/1782342051) |

## What reviewers say

### Open Vitals

[App page](https://appshunter.io/ios/app/open-vitals/id6773071347)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sync Local (Monthly) | $0.99 | per month |
| Local Sync (Yearly) | $10.99 | per year |


### base.

[App page](https://appshunter.io/ios/app/base/id6805114139)

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

**In-app purchases:** none


## Frequently asked questions

### Is Open Vitals free?

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

### Is base. free?

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

### Do Open Vitals or base. have ads?

Neither Open Vitals nor base. shows ads.

### Which is updated more often, Open Vitals or base.?

Open Vitals ships an update every 6 weeks, and base. every 9 days. Most recently, Open Vitals was updated on October 10, 2026 and base. on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*