# Alva vs Altimeter Barometer

The clearest difference is price: Alva at Free against Altimeter Barometer's $1.99. Alva also leads on in-app purchases (none vs 3) and iOS requirement (15.0 vs 18.6). On ads and device support there is nothing between them.

Alva is free to download; Altimeter Barometer costs $1.99 up front. Altimeter Barometer sells 3 in-app purchases, starting at $1.99 per month. Alva asks for nothing beyond the download.

## The numbers

| Metric | Alva | Altimeter Barometer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 69 MB | 7 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SERMIR, TOO](https://appshunter.io/developer/1720319229) | [Aneesh Pradeep](https://appshunter.io/developer/1836157821) |

## What reviewers say

### Alva

[App page](https://appshunter.io/ios/app/alva/id6474004635)

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

**In-app purchases:** none


### Altimeter Barometer

[App page](https://appshunter.io/ios/app/altimeter-barometer-isobar/id6803479220)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ISOBAR Pro - Monthly | $1.99 | per month |
| ISOBAR Pro - Annual | $9.99 | per year |
| ISOBAR Pro - Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Alva free?

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

### Is Altimeter Barometer free?

Altimeter Barometer costs $1.99, and also offers in-app purchases.

### Do Alva or Altimeter Barometer have ads?

Neither Alva nor Altimeter Barometer shows ads.

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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.*