# Solstix vs Barometer & Altimeter Pro

The clearest difference is review sentiment: Solstix at 100% against Barometer & Altimeter Pro's 50%. Solstix also leads on rating (5.0 vs 3.7) and update cadence (every 3 days vs every 10 days). Barometer & Altimeter Pro's advantage is iOS requirement (17.0 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Solstix sells 1 one-off in-app purchase and Barometer & Altimeter Pro sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Solstix holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews point the same way: 100% of Solstix's written reviews are positive against 50% of Barometer & Altimeter Pro's.

Solstix ships an update every 3 days, Barometer & Altimeter Pro every 10 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Solstix | Barometer & Altimeter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/solstix/id6760157573/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/barometer-and-altimeter-pro/id6762895694/reviews) |
| Number of ratings | 3 | **7** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | Free | Free |
| Size | 48 MB | 37 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hashsecure Technologies LLC](https://appshunter.io/developer/1862994412) | [Tirin](https://appshunter.io/developer/1665717789) |

## What reviewers say

### Solstix

[App page](https://appshunter.io/ios/app/solstix/id6760157573)

Visualize celestial bodies in stunning 3D with real-time astronomical data. Track space weather, follow NASA missions, and explore planets with live imagery. Perfect for photographers, stargazers, and anyone fascinated by the cosmos.

**Highlights:** 3D celestial bodies with NASA textures, Real-time sun, moon, and planet data, Dynamic horizon with real-time sky colors, Artemis II mission tracker, Space weather alerts, Live Mars rover and SDO imagery, 3D Moon phases with haptic feedback

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Solstix | $2.99 | one-time |


### Barometer & Altimeter Pro

[App page](https://appshunter.io/ios/app/barometer-and-altimeter-pro/id6762895694)

This application precisely measures atmospheric pressure and tracks your elevation in real time. It provides storm warnings based on pressure changes and displays historical trend charts. Ideal for outdoor enthusiasts and weather-conscious individuals.

**Highlights:** Precise air pressure measurement, Live elevation tracking, Trip gain calculation, Storm warning alerts, Historical trend charts, Customizable interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Barometer Monthly | $1.99 | per month |
| Barometer Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Solstix free?

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

### Is Barometer & Altimeter Pro free?

Barometer & Altimeter Pro is free to download, with in-app purchases available.

### Which has better reviews, Solstix or Barometer & Altimeter Pro?

Solstix is rated higher. Solstix averages 5.0 out of 5 from 3 ratings, while Barometer & Altimeter Pro averages 3.7 from 7 ratings.

### Do Solstix or Barometer & Altimeter Pro have ads?

Neither Solstix nor Barometer & Altimeter Pro shows ads.

### Which is updated more often, Solstix or Barometer & Altimeter Pro?

Solstix ships an update every 3 days, and Barometer & Altimeter Pro every 10 days. Most recently, Solstix was updated on October 17, 2026 and Barometer & Altimeter Pro 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.*