# Tech vs Lean Angle

The clearest difference is rating: Lean Angle at 3.0 against Tech's 1.6. Lean Angle also leads on update cadence (every 10 days vs monthly). Tech's advantage is ads (none vs shown) and ratings volume (87 vs 6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lean Angle holds the better App Store score, 3.0 against 1.6. That said, the two scores are not equally well evidenced: Tech has 87 ratings behind it against 6, so its average is the more settled of the two.

Tech ships an update monthly, Lean Angle every 10 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Tech | Lean Angle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (87 ratings)](https://appshunter.io/ios/app/tech-air-app/id1504440133/reviews) | **[3.0 (6 ratings)](https://appshunter.io/ios/app/lean-angle-moto-tilt-meter/id6761253773/reviews)** |
| Number of ratings | **87** | 6 |
| Positive reviews | 13.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | **Free** | Ad-supported |
| Size | 151 MB | 61 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ALPINESTARS SPA](https://appshunter.io/developer/1499986821) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### Tech

[App page](https://appshunter.io/ios/app/tech-air-app/id1504440133)

Easily register and monitor your motorcycle airbag system's status and battery life. Track ride details, record location and speed, and relive your journeys with detailed maps and statistics. Build a library of your rides and manage system settings.

**Highlights:** Register Tech-Air® 5 Airbag System, Monitor system status and battery life, Track ride details with location and speed, Record and visualize ride statistics, Build a library of recorded rides, Disable system for off-road riding, Update system firmware

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ✅ Successful firmware updates when working properly
- 📍 Ride tracking and route recording functionality
- 🔋 Battery level monitoring
- ⚡ Quick pairing when conditions are optimal
- 🎯 Simple and intuitive UI design

**What reviewers complain about**

- 🐛 Constant disconnection issues between app and vest
- 📡 Extremely limited Bluetooth range (requires phone within 5cm of vest)
- 🔐 Registration and verification SMS not received in multiple regions
- ❌ Firmware update failures stuck at 2-3%
- ⚠️ App crashes on startup after updates

**Reported bugs**

- App crashes immediately upon launch after updates
- Firmware update stuck at 2% indefinitely
- Error 12 during firmware installation
- Verification SMS not arriving (especially for +420 Czech numbers and other regions)
- QR code scanner not recognizing codes

**Requested features**

- PC/desktop application for firmware updates
- Lean angle tracking and display
- Maximum speed recording in ride logs
- Acceleration metrics in ride data
- Altitude data in ride tracking


### Lean Angle

[App page](https://appshunter.io/ios/app/lean-angle-moto-tilt-meter/id6761253773)

This app uses your phone's gyroscope to measure motorcycle or bicycle lean angles in real time. It tracks cornering statistics, maximum lean, and ride routes with GPS, offering safety alerts for lean limits.

**Highlights:** Real-time lean angle gauge, High-frequency sampling, Corner-by-corner statistics, Maximum lean angle tracking, GPS ride logging with corner markers, Safety limit alerts, Mount position calibration

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

**In-app purchases:** none


## Frequently asked questions

### Is Tech free?

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

### Is Lean Angle free?

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

### Which has better reviews, Tech or Lean Angle?

Lean Angle is rated higher. Tech averages 1.6 out of 5 from 87 ratings, while Lean Angle averages 3.0 from 6 ratings.

### Do Tech or Lean Angle have ads?

Lean Angle shows ads; Tech does not.

### Which is updated more often, Tech or Lean Angle?

Tech ships an update monthly, and Lean Angle every 10 days. Most recently, Tech was updated on October 21, 2026 and Lean Angle 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.*