Comparison

KartMAX PRO EVO vs Kartz

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KartMAX PRO EVO

This application provides precise engine tuning recommendations for Rotax MAX EVO karting engines. It calculates optimal jetting, needle clip position, and spark plug type based on real-time weather conditions and various engine configurations. It's designed for professional teams, tuners, and club racers to enhance performance.

Highlights
  • Jetting recommendations
  • Weather condition integration
  • Support for EVO and non-EVO engines
  • Multiple engine configurations
  • Spark plug type selection
  • Fuel octane and oil ratio adjustment
  • Carburetor ice warning
Features
Read full description

The Nº1 jetting app for all Rotax MAX engines, EVO included. Get the right jet, needle clip position and spark plug for Senior, DD2, Junior, Mini and Micro MAX — in seconds, matched to the weather at your track. KartMAX PRO EVO is a must-have for teams, professionals, engine tuners and club racers. Thousands of drivers all over the world rely on it every race weekend, from club events to national and international championships. Set up your engine once. From then on, the app reads the weather conditions at the racetrack and recommends the jet, needle clip position and spark plug reference for your exact engine and carburetor configuration. COVERS EVERY MAX CLASS • DD2, Senior, Junior, Mini and Micro MAX • EVO and non EVO engines with MaxChallenge setup and other configurations TAKES EVERY DETAIL INTO ACCOUNT • Keep as many engine configurations as you want • Selectable K98 or K27 needle (non EVO) • 3.6 or 5.2 floats weight (non EVO) • Idle jet and idle emulsion tube (non EVO) • Selectable needle valve for non EVO DD2 • Selectable intake restrictor and carburetor spacer for Micro and Mini classes (non EVO) • Adjustable floats height (non EVO) • Independent delta adjustment for main jet and needle pin — calibrate your particular engine • Support for Denso, NGK and NGK-IX spark plugs • Selectable fuel octane • Adjustable fuel/oil ratio with a mix wizard for the perfect mix • Carburetor ice warning • Fine tuning • International configurations supported WEATHER, AUTOMATICALLY KartMAX PRO EVO obtains your position and altitude automatically and fetches temperature, pressure and humidity from the nearest weather station over the internet. On supported devices the internal barometer is used for extra precision. Need more accuracy? Connect the readings from your own portable weather station. LEARN AS YOU TUNE Built-in documentation, how-tos, video tutorials and official manuals. Wondering if it really works? Thousands of drivers use our software every weekend at national and international championships. Although most of them would rather keep it a secret ;) Questions? Contact us — we answer every message, we act on user feedback, and we race with KartMAX PRO EVO ourselves.

About

Kartz

Track your karting lap times, monitor your progress across different tracks, and compare your performance with other amateur drivers in France. Discover nearby circuits and share your racing sessions with the community.

Highlights
  • Record lap times per track
  • Track progress over time
  • Compare with other drivers
  • Discover nearby circuits
  • Share and comment on sessions
  • Unlock performance badges
Features
Read full description

Kartz, c'est l'app de la communauté karting amateur en France. Enregistre chaque session, garde une trace de tes meilleurs temps et suis ta progression circuit par circuit. Fini les chronos gribouillés sur ton téléphone : tout est au même endroit, propre et comparable. CE QUE TU PEUX FAIRE • Enregistrer tes chronos et retrouver ton meilleur temps sur chaque piste • Te comparer aux autres pilotes sur le classement de ton circuit • Suivre ta progression dans le temps • Découvrir les circuits près de chez toi sur la carte • Partager tes sessions dans le fil, liker et commenter celles des autres • Débloquer des badges au fil de tes performances POUR QUI Que tu roules en loisir le week-end ou que tu vises le podium, Kartz te donne les outils pour suivre et améliorer tes temps. Rejoins les pilotes déjà sur Kartz et montre ce que tu as dans le moteur. Conditions d'utilisation (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Politique de confidentialité : https://kartz.fr/privacy

Screenshots

KartMAX PRO EVO4 screens
Kartz4 screens

Verdict

The call

The clearest difference is price: Kartz at Free against KartMAX PRO EVO's $9.99. Kartz also leads on update cadence (every 4 days vs every 6 months) and review sentiment (100% vs 83%). KartMAX PRO EVO's advantage is in-app purchases (none vs 2). On ads 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

CostPrice · In-app purchases · Ads · Monetization

Kartz is free to download; KartMAX PRO EVO costs $9.99 up front. Kartz sells 2 in-app purchases, starting at $3.99 per month. KartMAX PRO EVO asks for nothing beyond the download.

UpkeepUpdate frequency

KartMAX PRO EVO ships an update every 6 months, Kartz every 4 days. Both last shipped on October 10, 2026.

Scorecard6 real differences · 4 level
KartMAX PRO EVO versus Kartz: the parameters behind the verdict, then further details
ParameterKartMAX PRO EVOKartz
Price$9.99Free — better
Rating2.0 (5 ratings) — better—
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings5 — better—
Update frequencyEvery 6 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.0 — better
Further details — not scored
Size108 MB99 MB
Age rating4+12+
DeveloperRafael BartolomeTheo manzella

Customer experience

KartMAX PRO EVO

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Kartz

Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KartMAX PRO EVO

No in-app purchases

2 purchases

Kartz

Subscriptions2
  • Kartz Pro3 Days trial$3.991 Month
  • Kartz Pro$34.991 Year

Questions

Is KartMAX PRO EVO free?
KartMAX PRO EVO costs $9.99, with no in-app purchases.
Is Kartz free?
Kartz is free to download, with in-app purchases available.
Do KartMAX PRO EVO or Kartz have ads?
Neither KartMAX PRO EVO nor Kartz shows ads.
Which is updated more often, KartMAX PRO EVO or Kartz?
KartMAX PRO EVO ships an update every 6 months, and Kartz every 4 days. Most recently, KartMAX PRO EVO was updated on October 10, 2026 and Kartz on October 10, 2026.

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