# altimeter professional vs Chippy Boss

The clearest difference is ads: Chippy Boss at none against altimeter professional's shown. Chippy Boss also leads on update cadence (every 3 weeks vs every 67 months) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. altimeter professional sells 3 in-app purchases, starting at $1.99 per month and Chippy Boss sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

altimeter professional ships an update every 67 months, Chippy Boss every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | altimeter professional | Chippy Boss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (25 ratings)](https://appshunter.io/ios/app/altimeter-professional/id1033563012/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 61.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 67 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 27 MB | 39 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FFZ srl](https://appshunter.io/developer/533499912) | [Nicholas Straughan](https://appshunter.io/developer/6772360178) |

## What reviewers say

### altimeter professional

[App page](https://appshunter.io/ios/app/altimeter-professional/id1033563012)

This app provides highly accurate altitude and position detection using GPS and barometric sensors. It features a graphical analog display with digital readings, tracks maximum altitude reached, and allows users to calibrate readings. You can also take and share photos with location data or send emergency SMS messages with GPS coordinates.

**Highlights:** Accurate altitude and position detection, Analog and digital display, Maximum altitude tracking, Photo capture with altitude and location, Emergency SMS with GPS coordinates, Altitude calibration, Meters or feet display

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month | $1.99 | per month |
| Premium 6 Months | $6.99 | per 6 months |
| Premium 1 Year | $11.99 | per year |


### Chippy Boss

[App page](https://appshunter.io/ios/app/chippy-boss/id6772360176)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chippy Boss - Monthly | $2.99 | per month |
| Chippy Boss - Yearly | $29.99 | per year |


## Frequently asked questions

### Is altimeter professional free?

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

### Is Chippy Boss free?

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

### Do altimeter professional or Chippy Boss have ads?

altimeter professional shows ads; Chippy Boss does not.

### Which is updated more often, altimeter professional or Chippy Boss?

altimeter professional ships an update every 67 months, and Chippy Boss every 3 weeks. Most recently, altimeter professional was updated on October 24, 2026 and Chippy Boss on October 24, 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.*