# Altimeter for Aviators vs T3000

The clearest difference is in-app purchases: T3000 at none against Altimeter for Aviators's 2. Altimeter for Aviators's advantage is update cadence (every 5 weeks vs every 15 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Altimeter for Aviators sells 2 one-off in-app purchases. T3000 asks for nothing beyond the download.

Altimeter for Aviators ships an update every 5 weeks, T3000 every 15 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Altimeter for Aviators | T3000 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (583 ratings)](https://appshunter.io/ios/app/altimeter-for-aviators/id1463100680/reviews)** | — |
| Number of ratings | **583** | — |
| Positive reviews | 75.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 15 months |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 41 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STEARsoft](https://appshunter.io/developer/373730382) | [Microair Avionics Pty Ltd](https://appshunter.io/developer/1696549564) |

## What reviewers say

### Altimeter for Aviators

[App page](https://appshunter.io/ios/app/altimeter-for-aviators/id1463100680)

This app functions as a pressure altimeter, similar to those found in aircraft, utilizing your device's barometer. It's designed for pilots and aviation enthusiasts to understand altitude, height above a location, and flight levels. It works as a standalone Apple Watch app or on iPhones/iPads with a barometer.

**Highlights:** Pressure altimeter functionality, Standalone Apple Watch app, Calculates altitude above sea level, Calculates height above a specific location (QFE), Calculates Flight Level (FL) using standard pressure, Supports pressure units (inHg, hPa, mb)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VSI | $1.99 | one-time |
| Altitude Units | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive user interface
- ✈️ Accurate altimeter representation for pilots
- ⌚ Works well on Apple Watch
- 🎯 Easy pressure setting adjustment like real cockpit
- 📱 No GPS required for operation

**What reviewers complain about**

- 🐛 App crashes or stops working after iOS updates
- 📵 Inconsistent performance across Watch models
- 🔴 Watch display shows red/no reading on some devices
- 📧 Poor developer communication and contact options
- 💰 Upsell prompts not clearly disclosed

**Reported bugs**

- App hangs on 'reading pressure' with Apple Watch 8
- Watch complication shows dashed line instead of altitude
- Incompatibility with iOS 17.4
- Watch app graphics fuzzy/wrong resolution
- Crown and long press unresponsive on Watch 8

**Requested features**

- CarPlay integration and widget support
- Night mode with dark theme
- Keep screen on while flying option
- Drum pointer altimeter display option
- Digital altitude readout option


### T3000

[App page](https://appshunter.io/ios/app/t3000/id6747058073)

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

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter for Aviators free?

Altimeter for Aviators is free to download, with in-app purchases available.

### Is T3000 free?

T3000 is free to download, with no in-app purchases.

### Do Altimeter for Aviators or T3000 have ads?

Neither Altimeter for Aviators nor T3000 shows ads.

### Which is updated more often, Altimeter for Aviators or T3000?

Altimeter for Aviators ships an update every 5 weeks, and T3000 every 15 months. Most recently, Altimeter for Aviators was updated on October 28, 2026 and T3000 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.*