Rotax MAX Jetting vs Prisma Electronics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rotax MAX Jetting
This app helps users find the ideal carburetor main jet size for Rotax kart engines. It calculates settings based on ambient conditions like temperature, altitude, and air pressure, either automatically via GPS or manually. Supports various Rotax MAX engine types.
- Optimal main jet calculation
- Supports multiple Rotax MAX engines
- Automatic GPS weather data
- Manual ambient parameter entry
- Celsius/Fahrenheit toggle
- Meters/Feet toggle
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The Rotax MAX Jetting App enables the user to calculate the optimal carburetor main jet size for Rotax kart engines of the MAX series: - 125 Micro MAX evo - 125 Mini MAX evo - 125 Junior MAX evo - 125 Senior MAX evo - 125 MAX DD2 based on the current ambient conditions - Temperature - Altitude - Air pressure - Humidity This can be done either automatically using GPS and a functioning internet connection or manually by entering the ambient parameters. *Automatically* Click on Use GPS position for weather data, select the desired engine type from the scroll menu and start the calculation tabbing the Calculate button. *Manually* Enter all ambient parameters, select the desired engine type from the scroll menu and start the calculation tabbing the Calculate button. Important: Since the calculation is based on the "relative air pressure" (air pressure at 0m above sea level), your own barometer must be calibrated to the current altitude before you can actually use the value. Online weather services provide this value by default. To toggle between Celsius and Fahrenheit, press °C/°F and to choose between meters and feet press m/ft next to the entry of the value. To start a new calculation, click Reset.
Prisma Electronics
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Download Analyze and share data from your HiPreMa5 tire gauges, Stopwatch and Air densimeter. The most complete tire gauges for motorsport.
Screenshots
Verdict
The clearest difference is update cadence: Rotax MAX Jetting at every 3 months against Prisma Electronics's every 7 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rotax MAX Jetting ships an update every 3 months, Prisma Electronics every 7 months. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.
| Parameter | Rotax MAX Jetting | Prisma Electronics |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (8 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | BRP-Rotax GmbH & Co KG | Prisma Electronics srl |
In-app purchases
Rotax MAX Jetting
No in-app purchases
Prisma Electronics
No in-app purchases
Questions
Is Rotax MAX Jetting free?
Is Prisma Electronics free?
Do Rotax MAX Jetting or Prisma Electronics have ads?
Which is updated more often, Rotax MAX Jetting or Prisma Electronics?
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