# altimeter professional vs Debate Clock

The clearest difference is in-app purchases: Debate Clock at none against altimeter professional's 3. Debate Clock also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 67 months). On price 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. Debate Clock asks for nothing beyond the download.

altimeter professional ships an update every 67 months, Debate Clock every 2 weeks. The most recent releases landed on November 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | altimeter professional | Debate Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (27 ratings)](https://appshunter.io/ios/app/altimeter-professional/id1033563012/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 61.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 67 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 27 MB | 19 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) | [Michal Hrbaty](https://appshunter.io/developer/6794349218) |

## 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 |


### Debate Clock

[App page](https://appshunter.io/ios/app/debate-clock/id6794349216)

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

**In-app purchases:** none


## Frequently asked questions

### Is altimeter professional free?

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

### Is Debate Clock free?

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

### Do altimeter professional or Debate Clock have ads?

altimeter professional shows ads; Debate Clock does not.

### Which is updated more often, altimeter professional or Debate Clock?

altimeter professional ships an update every 67 months, and Debate Clock every 2 weeks. Most recently, altimeter professional was updated on November 1, 2026 and Debate Clock on October 9, 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.*