Tech vs Matrix Calc Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tech
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.
- 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
Read full descriptionHide full description
Packed with a variety of useful features, the App lets you easily register your Tech-Air® 5 Airbag System and monitor its status and battery life, as well as tracking the details of your ride. The App uses Bluetooth Connectivity to access the System’s data. Using the MyRide feature, riders can record location and speed continuously during a ride. Relive your ride and visualize your average and top speeds at any point along the route by zooming in on the map. MyRide gives motorcyclists the ability to record unlimited motorcycle rides and build up a complete library of individual trips, so you can easily retrace your trips and remember the great riding moments. How it Works • See top stats for the ride – including the exact location where these results were achieved, average speed, trip time and distance covered. • Retrace each trip on an enhanced Google Map that shows your speed at any point you select along the trip. • Build up an awesome library of each ride you take on your bike. • Disable the Tech-Air® System when you’re going to start doing heavy off-road riding. • Verify the deployment of the Tech-Air® System after an accident. • Send feedback to the Alpinestars Tech-Air® development team. • Update the System’s firmware whenever available. • Download the online manual and useful documentation for air travel, shipments, and servicing. • Register your products.
Matrix Calc Plus
Read full descriptionHide full description
Matrix Calculator is a math calculator designed to solve matrix operations. It allows you to perform matrix operations on two matrices, including addition, subtraction, multiplication, and division, quickly and easily. Features: • Supports matrix addition, subtraction, multiplication, and division. • Generates matrices in LaTeX format, which can be saved as images to your camera roll. • Matrices in array mode can be copied easily. • Customizable font and background colors. • Adjustable font size and type. • Option to display the full matrix operation or the result only. • Includes a matrix reference guide. • Works seamlessly on both iPhone and iPad. • Lightweight, compact app optimized for everyday use. • Ad-free and built with privacy in mind. In mathematics, a matrix (plural: matrices) is a rectangular array or table of numbers, symbols, or expressions arranged in rows and columns. It is used to represent a mathematical object or describe properties of such objects. Matrix Operations: Adding or Subtracting Two Matrices: A matrix A with 3 rows and 5 columns can be added to another matrix B of the same dimensions (3 rows and 5 columns). To perform addition or subtraction, the two matrices must have the same size, meaning the rows and columns must match. Multiplying Two Matrices: To multiply an m×n matrix by an n×p matrix, the number of columns in the first matrix (n) must equal the number of rows in the second matrix (n). The resulting matrix will have dimensions m×p: m×n×n×p=m×p Dividing Two Matrices: Matrix division is defined as: A/B = A × (1/B) = A × B⁻¹ Where B⁻¹ is the inverse of matrix B. Thank you for your support! Visit nitrio.com for more apps for your iOS devices.
Screenshots
Verdict
The clearest difference is price: Tech at Free against Matrix Calc Plus's $2.99. Tech also leads on update cadence (monthly vs every 26 months) and iOS requirement (13.0 vs 18.2). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Tech is free to download; Matrix Calc Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Tech ships an update monthly, Matrix Calc Plus every 26 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.
| Parameter | Tech | Matrix Calc Plus |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 1.6 (83 ratings) — better | — |
| Positive reviews | 13.1% of reviews | — |
| Number of ratings | 83 — better | — |
| Update frequency | Monthly — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 151 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | ALPINESTARS SPA | Heng Jia Liang |
Bugs and requests
Tech
Reported bugs
20 issues- 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
Show 15 moreShow fewer
- Manual code entry not progressing past input screen
- Bluetooth connection drops during firmware updates
- App shows 'already paired' but vest not visible in app
- Battery percentage displays incorrectly or as 0%
- Software update notification loop (says update available when already updated)
- Tap input registration incorrect on registration form
- App unresponsive during software update process
- Bluetooth disconnection when phone is moved away from vest
- App crashes when accessing 'My Rides' section
- Ride data not recording properly (shows wrong duration/metrics)
- Location tracking showing wrong geographic location
- iOS 26 compatibility issues
- App not sending feedback/crash reports
- Inconsistent behavior across different iPhone models
- App language settings affecting firmware update capability
Requested features
13 requests- 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
Show 8 moreShow fewer
- Ability to change phone number associated with account
- Email verification option as alternative to SMS
- Improved Bluetooth antenna strength
- Automatic ride recording without manual activation
- Better offline functionality
- Software update caching on vest
- Race mode activation without app dependency
- More detailed ride statistics and analytics
Matrix Calc Plus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tech
No in-app purchases
Matrix Calc Plus
No in-app purchases









