# Barometer for Watch vs Atmos.Guide

The clearest difference is in-app purchases: Atmos.Guide at none against Barometer for Watch's 4. Atmos.Guide also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (18.0 vs 26.0). Barometer for Watch's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Barometer for Watch sells 4 one-off in-app purchases. Atmos.Guide asks for nothing beyond the download.

Barometer for Watch ships an update every 4 months, Atmos.Guide every 2 weeks. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Barometer for Watch | Atmos.Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (47 ratings)](https://appshunter.io/ios/app/barometer-for-watch/id1448485995/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 63.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 13 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bangyan Chu](https://appshunter.io/developer/1448485994) | [Helm Sens AS](https://appshunter.io/developer/1888437689) |

## What reviewers say

### Barometer for Watch

[App page](https://appshunter.io/ios/app/barometer-for-watch/id1448485995)

This application displays atmospheric pressure, sea level pressure, and altitude using your device's built-in sensors. It also calculates the boiling point of water based on current pressure. The companion watch app includes customizable complications.

**Highlights:** Atmospheric pressure reading, Sea level pressure, Altitude measurement, Latitude and longitude, Boiling point calculation, Watch complications

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tips for coffee | $1.99 | one-time |
| Tips for Ice Cream | $2.99 | one-time |
| Tips for Pizza | $4.99 | one-time |
| Generous Tips | $10.99 | one-time |


### Atmos.Guide

[App page](https://appshunter.io/ios/app/atmosguide/id6761257767)

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

**In-app purchases:** none


## Frequently asked questions

### Is Barometer for Watch free?

Barometer for Watch is free to download, with in-app purchases available.

### Is Atmos.Guide free?

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

### Do Barometer for Watch or Atmos.Guide have ads?

Neither Barometer for Watch nor Atmos.Guide shows ads.

### Which is updated more often, Barometer for Watch or Atmos.Guide?

Barometer for Watch ships an update every 4 months, and Atmos.Guide every 2 weeks. Most recently, Barometer for Watch was updated on October 18, 2026 and Atmos.Guide on October 11, 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.*