# Amplink PDM vs Tech

The clearest difference is rating: Amplink PDM at 5.0 against Tech's 1.6. Amplink PDM also leads on review sentiment (33% vs 13%) and iOS requirement (11.0 vs 13.0). Tech's advantage is update cadence (monthly vs every 24 months) and ratings volume (83 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Amplink PDM holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: Tech has 83 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Amplink PDM's written reviews are positive against 13% of Tech's.

Amplink PDM ships an update every 24 months, Tech monthly. The most recent releases landed on June 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Amplink PDM | Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/amplink-pdm/id1339238181/reviews)** | [1.6 (83 ratings)](https://appshunter.io/ios/app/tech-air-app/id1504440133/reviews) |
| Number of ratings | 1 | **83** |
| Positive reviews | **33.3% of reviews** | 13.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Monthly** |
| Monetization | Free | Free |
| Size | 32 MB | 151 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rowe Electronics, Inc.](https://appshunter.io/developer/1339238180) | [ALPINESTARS SPA](https://appshunter.io/developer/1499986821) |

## What reviewers say

### Amplink PDM

[App page](https://appshunter.io/ios/app/amplink-pdm/id1339238181)

Configure and monitor your Amplink PDM device remotely via Bluetooth. This utility app is designed for safe configuration outside of vehicle operation.

**Highlights:** Bluetooth configuration, Device monitoring, Remote control, Safety-focused design

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Amplink PDM free?

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

### Is Tech free?

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

### Which has better reviews, Amplink PDM or Tech?

Amplink PDM is rated higher. Amplink PDM averages 5.0 out of 5 from 1 ratings, while Tech averages 1.6 from 83 ratings.

### Do Amplink PDM or Tech have ads?

Neither Amplink PDM nor Tech shows ads.

### Which is updated more often, Amplink PDM or Tech?

Amplink PDM ships an update every 24 months, and Tech monthly. Most recently, Amplink PDM was updated on June 1, 2026 and Tech on September 18, 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.*