Comparison

eFlexApp vs Pegasus

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

Head to head
About

eFlexApp

Monitor your eFlexFuel device in real-time, with features varying by device version. Adjust settings like language, temperature units, and theme. Track ethanol content, engine temperature, and more, depending on your specific eFlexFuel model.

Highlights
  • Real-time device monitoring
  • Adjustable settings (language, temp, theme)
  • Ethanol content tracking
  • Engine temperature monitoring
  • Device status checks
  • Bluetooth connectivity
Features
Read full description

With eFlexApp you can monitor your eFlexFuel device in real time. eFlexApp recognizes your eFlexFuel device version and offers different features with each product. The app also enables adjusting of eFlexPlus and eFlexPro devices. Change language (English, French, Finnish), temperature unit (°F/°C) and theme (light/dark). eFlexEco, eFlexBlue and eFlexFuel MONITOR: ethanol content, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment, (engine RPM in eFlexEco Firmware 11.0+) CHECK: device status eFlexPlus Direct, eFlexBlue Direct MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment CHECK: device status eFlexPlus and eFlexMoto Plus MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment ADJUST: RPM based enrichment with driving mode selection (save a custom driving mode setting created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software) CHECK: device status, startup information eFlexPro and eFlexMoto Pro MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment ADJUST: RPM based enrichment with driving mode selection (save up to three custom driving mode settings created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software) CHECK: device status, startup information eFlexApp communicates with your eFlexFuel device via Bluetooth. Permission to use Bluetooth is required. Please contact support@eflexfuel.com if you have any feedback! Developed by StepOne Tech Ltd

About

Pegasus

Features
Read full description

Pegasus vous permet de savoir en quelques secondes si votre véhicule est compatible avec une conversion E85 (bioéthanol). Sélectionnez simplement votre marque, votre modèle, votre génération puis votre moteur : l'application interroge directement la base de données technique de Pegasus Ingénierie et vous indique immédiatement si votre moteur est éligible à l'installation d'un boîtier de conversion E85. Fonctionnalités : • Recherche guidée par marque, modèle, génération et motorisation • Résultat de compatibilité E85 instantané • Base de données technique mise à jour régulièrement par nos experts • Interface simple et rapide, pensée pour les particuliers comme pour les professionnels Pegasus Ingénierie est spécialisé dans la reprogrammation et l'optimisation moteur. Cette application est un outil gratuit pour vous aider à évaluer la compatibilité de votre véhicule avant toute conversion E85.

Screenshots

eFlexApp4 screens
Pegasus3 screens

Verdict

The call

The clearest difference is update cadence: Pegasus at fortnightly against eFlexApp's monthly. Pegasus also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.6). On price, ads and in-app purchases 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

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

UpkeepUpdate frequency

eFlexApp ships an update monthly, Pegasus fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
eFlexApp versus Pegasus: the parameters behind the verdict, then further details
ParametereFlexAppPegasus
PriceFreeFree
Rating3.2 (10 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings10 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.615.0 — better
Further details — not scored
Size53 MB25 MB
Age rating4+4+
DeveloperStepOne Tech LtdPierre BESNIER

In-app purchases

None

eFlexApp

No in-app purchases

None

Pegasus

No in-app purchases

Questions

Is eFlexApp free?
eFlexApp is free to download, with no in-app purchases.
Is Pegasus free?
Pegasus is free to download, with no in-app purchases.
Do eFlexApp or Pegasus have ads?
Neither eFlexApp nor Pegasus shows ads.
Which is updated more often, eFlexApp or Pegasus?
eFlexApp ships an update monthly, and Pegasus fortnightly. Most recently, eFlexApp was updated on November 3, 2026 and Pegasus on October 31, 2026.

Other comparisons