Jetting Max Kart for Rotax Max Downloads & RevenueJetting Max Kart for Rotax Max · App Store
Jetting Max Kart for Rotax Max is #46 in Sports Paid in Russia and charting in 5 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperISEnet
CategorySports
Price9.99 CAD
Released
Rating★ 0.0 (0)
Version2.2
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)500+ worldwide
Jetting Max Kart for Rotax Max update history & changes
Last change · 36 events since 7 Feb 2014Full timeline ↓📈Entered the top 100📈Charting in a new country✏️Description updated✏️New iPad screenshots📦Updated to version 2.2🆕First spotted by AppInsider🆕Its developer released another app: Carburation pour Vortex ROK📦Version 2.1
Full timeline · 36 events
- 📈Jetting Max Kart for Rotax Max entered the top 100Top Paid · Sports · CA
- 📈Jetting Max Kart for Rotax Max charting in a new countryCanada
- 📈Jetting Max Kart for Rotax Max charting in a new countrySpain
- ✏️Jetting Max Kart for Rotax Max: description updated· AE, GB
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· AE, GB
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · AE, GB
- ✏️Jetting Max Kart for Rotax Max: description updated· BR
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · BR
- ✏️Jetting Max Kart for Rotax Max: devices changed+ Watch
- ✏️Jetting Max Kart for Rotax Max: app got bigger2 MB → 5 MB (+219%)
- ✏️Jetting Max Kart for Rotax Max: description updated· AU
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· AU
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · AU
- ✏️Jetting Max Kart for Rotax Max: description updated· RU
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· RU
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · RU
- ✏️Jetting Max Kart for Rotax Max: renamedКарбюратор залить Rotax Max → Карбюратор для Rotax Max · RU
- ✏️Jetting Max Kart for Rotax Max: description updated· IT
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· IT
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · IT
- ✏️Jetting Max Kart for Rotax Max: description updated· FR
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· FR
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · FR
- ✏️Jetting Max Kart for Rotax Max: description updated· DE
- ✏️Jetting Max Kart for Rotax Max: new iPad screenshots· DE
- ✏️Jetting Max Kart for Rotax Max: new screenshots6 screenshots (was 5) · DE
- ✏️Jetting Max Kart for Rotax Max: renamedGemischbildung für Rotax Max → Bedüsung für Rotax Max · DE
- 📦Jetting Max Kart for Rotax Max updated to version 2.2Version 2.2
• Apple Watch, Widgets und Live Activity: die aktuelle Hauptdüse am Handgelenk, auf dem Sperrbildschirm und in der Dynamic Island, den ganzen Renntag lang.
• Streckenmodus: die Bedüsung groß und kontrastreich, lesbar in der Sonne und mit Helm.
• Hinweise, wenn sich das Wetter so stark ändert, dass Hauptdüse oder Nadel wechseln sollten: «Die Luftdichte ist seit deiner letzten Berechnung um 1,6 % gestiegen. Die Hauptdüse bleibt bei 162; die Nadel geht auf Clip 5».
• Kraftstoff: 98 E5, Super E10, E15, ohne Ethanol oder Rennkraftstoff, und die Bedüsung wird daran angepasst.
• Warnung vor Vergaservereisung, nach dem Kriterium der Zivilluftfahrt.
• 144 Strecken, und beim Abrufen des Wetters erkennt die App, auf welcher du bist.
• Fahrtenbuch über iCloud synchronisiert, und die Bedüsung teilst du per Link oder QR-Code mit deinem Mechaniker.
• Die Ortung funktioniert auch auf dem iPad ohne GPS und in Gebäuden, und ein Problem meldest du unter Ergebnis mit einem Tipp.
Die Koeffizienten der Berechnung ändern sich nicht: Mit 98 E5, dem üblichen Kraftstoff, ist das Ergebnis dasselbe wie bisher.
IN FRÜHEREN VERSIONEN
• 2.1: Mischungsrechner für Benzin und Öl und ein erneuertes Icon.
• 2.0: die App neu gebaut: Fahrtenbuch mit Selbstkalibrierung, die beiden benachbarten Düsen, Feinabstimmung in Schritten von 0,1, die Abstimmung als Bild teilen, Bedingungen auf einem einzigen Bildschirm, Dunkelmodus, iPad, und die Konfiguration geht beim Wechsel der Telefonsprache nicht mehr verloren.… more - 📈Jetting Max Kart for Rotax Max charting in a new countryUnited Kingdom
- 📈Jetting Max Kart for Rotax Max charting in a new country in 2 chartsAustralia · Italy
- 🆕Jetting Max Kart for Rotax Max first spotted by AppInsider#78 in Top Paid · Sports · France
- 🆕Jetting Max Kart for Rotax Max: its developer released another app: Carburation pour Vortex ROK
- 🆕Jetting Max Kart for Rotax Max: its developer released another app: Jetting for IAME Swift kart
- 🆕Jetting Max Kart for Rotax Max: its developer released another app: Carburation DellOrto PHBH PHBG
- 📦Jetting Max Kart for Rotax Max version 2.1The mixture calculator.
• A petrol and oil mixture calculator, on the engine screen and right below the ratio control. You pick which of the three you want to know —the oil, the petrol or the ratio— and set the other two: the app works out the one that is missing.
• Petrol and oil each carry their own independent unit: litres, millilitres, US and imperial gallons, US and imperial ounces. Changing the unit does not change the mixture.
• The ratio is shown as a percentage and as 1:n at the same time, because they are the same number seen from the other side: 4 % is 1:25. And the percentage is oil against petrol, not against the total mixture: at 4 %, five litres of petrol take 200 ml of oil.
• The minus and plus jump to the next round figure, so you can land on an exact value without fighting the slider.
• One button carries that ratio to the engine screen, which is where it enters the jetting calculation. If it falls outside the range the app calculates in, it tells you before changing anything.
• New icon: the same kart as always, with more contrast and without the empty fifth of white it had on top.
• The calculator has its own help, in all eight languages of the app.
The calculation model is unchanged: for the same conditions and the same setup, the recommended values are exactly those of the previous version.… more - 🆕Jetting Max Kart for Rotax Max released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#46
Sports PaidMeasured
Jetting Max Kart for Rotax Max on the App Store
App details
App ID
811255761
Publisher
Ingenieria del Software ISEnet S.L.
On the store since
Feb 2014
12 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad · Watch
Universal purchase
Content rating
4+
Languages
8
CA EN FR DE IT PT RU ES
Size
5 MB
Jetting Max Kart for Rotax Max downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Russia | SportsPaid | #46 |
| France | SportsPaid | #78 |
 Germany | SportsPaid | #180 |
 Australia | SportsPaid | #124 |
 Italy | SportsPaid | #197 |
Apps near Jetting Max Kart for Rotax Max on the chart
Sports Paid, around #46.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
48/100
faster than 47% of Sports apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Jetting Max Kart for Rotax Max
Main jet, needle position and spark plug for your pre-2015, non-EVO Rotax Max — Micromax, Micromax without carb restrictor, Minimax, Junior, Senior, DD2 and Supermax — worked out from the real temperature, humidity, pressure and altitude, and from the fuel you use.
WHY THIS APP
• Made for non-EVO Rotax Max engines: K27 or K98 needle, 3.6 or 5.2 gr floats and 12.5 or 8.5 venturi, each with its own calibration.
• Apple Watch app, widgets and Live Activity: your main jet for right now on your wrist, on the lock screen and in the Dynamic Island.
• It alerts you when the weather changes enough to change the main jet or the needle, also from the hourly forecast.
• Track mode: your jetting large and high contrast, to read it in full sun with your helmet on.
• A logbook that learns from your engine: if it always wants a little more or a little less, the app spots it and suggests it.
• It takes the fuel into account: 98 E5, E10, E15, ethanol-free or race fuel.
• Carburettor icing warning, using the criterion of civil aviation.
• 144 tracks in 22 countries with the altitude of the track itself, and it detects which one you are at.
• Logbook synced through iCloud, and your jetting shared with your mechanic as a link or a QR code, no accounts.
RESULTS
The recommended main jet in large type, with the exact value and the two jets it falls between: green when the choice is clear and amber when it sits halfway. Also the needle position, spark plug, air density, density altitude and relative horsepower. High and mid fine tuning go in steps of 0.1 and show what each step does.
FUEL
98 E5, E10, E15, ethanol-free, leaded race fuel, E10 race fuel, oxygenated, or your own with its stoichiometric ratio and density. With E10 the main jet goes up by about 1 % and the needle by more than half a position compared with 98 E5.
CARBURETTOR ICING
From the temperature, the humidity and the chart civil aviation uses for carburettor engines, the app warns you when there is a risk at full throttle, and Conditions tells you whether there is one at idle and on the grid.
TRACK MODE AND TRACK DAY
Your jetting full screen at maximum brightness, and how much the density has changed since what you fitted. When you start a track day, for 12 hours the main jet is on the lock screen, in the Dynamic Island and on Apple Watch, and the app watches the weather for you. Dark mode throughout.
CONDITIONS
From the nearest weather station or typed in by hand; with no coverage it works just the same. If you are at a track on the list, the app detects it and asks whether that's the one.
ENGINE AND MIX
Class, K27 or K98 needle, 3.6 or 5.2 gr floats and pilot jet, float height, spark plug brand, 12.5 or 8.5 venturi, airbox, oil percentage, fuel and track type. Fuel and oil calculator in litres, millilitres, gallons and ounces, as a percentage and as 1:n.
LOGBOOK
Each session with its conditions and jetting, and then what you actually fitted and how it went — lean, right or rich — at low, mid and
WHY THIS APP
• Made for non-EVO Rotax Max engines: K27 or K98 needle, 3.6 or 5.2 gr floats and 12.5 or 8.5 venturi, each with its own calibration.
• Apple Watch app, widgets and Live Activity: your main jet for right now on your wrist, on the lock screen and in the Dynamic Island.
• It alerts you when the weather changes enough to change the main jet or the needle, also from the hourly forecast.
• Track mode: your jetting large and high contrast, to read it in full sun with your helmet on.
• A logbook that learns from your engine: if it always wants a little more or a little less, the app spots it and suggests it.
• It takes the fuel into account: 98 E5, E10, E15, ethanol-free or race fuel.
• Carburettor icing warning, using the criterion of civil aviation.
• 144 tracks in 22 countries with the altitude of the track itself, and it detects which one you are at.
• Logbook synced through iCloud, and your jetting shared with your mechanic as a link or a QR code, no accounts.
RESULTS
The recommended main jet in large type, with the exact value and the two jets it falls between: green when the choice is clear and amber when it sits halfway. Also the needle position, spark plug, air density, density altitude and relative horsepower. High and mid fine tuning go in steps of 0.1 and show what each step does.
FUEL
98 E5, E10, E15, ethanol-free, leaded race fuel, E10 race fuel, oxygenated, or your own with its stoichiometric ratio and density. With E10 the main jet goes up by about 1 % and the needle by more than half a position compared with 98 E5.
CARBURETTOR ICING
From the temperature, the humidity and the chart civil aviation uses for carburettor engines, the app warns you when there is a risk at full throttle, and Conditions tells you whether there is one at idle and on the grid.
TRACK MODE AND TRACK DAY
Your jetting full screen at maximum brightness, and how much the density has changed since what you fitted. When you start a track day, for 12 hours the main jet is on the lock screen, in the Dynamic Island and on Apple Watch, and the app watches the weather for you. Dark mode throughout.
CONDITIONS
From the nearest weather station or typed in by hand; with no coverage it works just the same. If you are at a track on the list, the app detects it and asks whether that's the one.
ENGINE AND MIX
Class, K27 or K98 needle, 3.6 or 5.2 gr floats and pilot jet, float height, spark plug brand, 12.5 or 8.5 venturi, airbox, oil percentage, fuel and track type. Fuel and oil calculator in litres, millilitres, gallons and ounces, as a percentage and as 1:n.
LOGBOOK
Each session with its conditions and jetting, and then what you actually fitted and how it went — lean, right or rich — at low, mid and
Latest updates
2.2
Version 2.2
• Apple Watch, Widgets und Live Activity: die aktuelle Hauptdüse am Handgelenk, auf dem Sperrbildschirm und in der Dynamic Island, den ganzen Renntag lang.
• Streckenmodus: die Bedüsung groß und kontrastreich, lesbar in der Sonne und mit Helm.
• Hinweise, wenn sich das Wetter so stark ändert, dass Hauptdüse oder Nadel wechseln sollten: «Die Luftdichte ist seit deiner letzten Berechnung um 1,6 % gestiegen. Die Hauptdüse bleibt bei 162; die Nadel geht auf Clip 5».
• Kraftstoff: 98 E5, Super E10, E15, ohne Ethanol oder Rennkraftstoff, und die Bedüsung wird daran angepasst.
• Warnung vor Vergaservereisung, nach dem Kriterium der Zivilluftfahrt.
• 144 Strecken, und beim Abrufen des Wetters erkennt die App, auf welcher du bist.
• Fahrtenbuch über iCloud synchronisiert, und die Bedüsung teilst du per Link oder QR-Code mit deinem Mechaniker.
• Die Ortung funktioniert auch auf dem iPad ohne GPS und in Gebäuden, und ein Problem meldest du unter Ergebnis mit einem Tipp.
Die Koeffizienten der Berechnung ändern sich nicht: Mit 98 E5, dem üblichen Kraftstoff, ist das Ergebnis dasselbe wie bisher.
IN FRÜHEREN VERSIONEN
• 2.1: Mischungsrechner für Benzin und Öl und ein erneuertes Icon.
• 2.0: die App neu gebaut: Fahrtenbuch mit Selbstkalibrierung, die beiden benachbarten Düsen, Feinabstimmung in Schritten von 0,1, die Abstimmung als Bild teilen, Bedingungen auf einem einzigen Bildschirm, Dunkelmodus, iPad, und die Konfiguration geht beim Wechsel der Telefonsprache nicht mehr verloren.
2.1
The mixture calculator.
• A petrol and oil mixture calculator, on the engine screen and right below the ratio control. You pick which of the three you want to know —the oil, the petrol or the ratio— and set the other two: the app works out the one that is missing.
• Petrol and oil each carry their own independent unit: litres, millilitres, US and imperial gallons, US and imperial ounces. Changing the unit does not change the mixture.
• The ratio is shown as a percentage and as 1:n at the same time, because they are the same number seen from the other side: 4 % is 1:25. And the percentage is oil against petrol, not against the total mixture: at 4 %, five litres of petrol take 200 ml of oil.
• The minus and plus jump to the next round figure, so you can land on an exact value without fighting the slider.
• One button carries that ratio to the engine screen, which is where it enters the jetting calculation. If it falls outside the range the app calculates in, it tells you before changing anything.
• New icon: the same kart as always, with more contrast and without the empty fifth of white it had on top.
• The calculator has its own help, in all eight languages of the app.
The calculation model is unchanged: for the same conditions and the same setup, the recommended values are exactly those of the previous version.
Store changes
What Jetting Max Kart for Rotax Max changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated 
New iPad screenshots
New screenshots
6 screenshots (was 5)
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