E85 App is a utility for flex-fuel vehicle owners that provides a community-verified map of ethanol stations and a fuel-blending calculator on iOS.
The App DNA
What makes this app unique?
The app removes the cognitive cost of guessing ethanol content at the pump, as official labels are often inaccurate and seasonal blends run lean.
For Flex-fuel vehicle owners and automotive enthusiasts who require precise ethanol blending and real-time fuel pricing data.
What does it look like?
Key features
Live map of public E85 stations with community-verified ethanol content and freshness-dated pricing.
Calculates exact gallons of E85 and premium gas needed to hit specific target ethanol percentages.
Displays nearby E85 stations and live prices directly on vehicle infotainment screens.
How much does it cost?
The current freemium model relies on ad-supported access, but the intrusive ad implementation creates a negative feedback loop that suppresses user willingness to pay for the subscription.
Velocity
Maintenance developmentUX improvementsnew contentShow more...
With only one release in the observed window, the app operates at a maintenance cadence. The latest update addresses specific UI filter logic and introduces a new blend percentage input for fuel verification. Development appears focused on functional utility and user experience refinements rather than rapid feature iteration. Given the current release frequency, the app remains in a stable maintenance state.
Who built it?
User Sentiment
What do users think recently?
Review voice lately leans frustrated. Users appreciate the integrated fuel calculator provides essential utility for drivers who need to mix e85 fuel and the station locator saves significant time for drivers searching for specific fuel types in new cities.
How are ratings & reviews evolving?
What users say, by theme
- The integrated fuel calculator provides essential utility for drivers who need to mix E85 fuel
- The station locator saves significant time for drivers searching for specific fuel types in new cities
- Aggressive and uncloseable advertisements prevent users from accessing the core map and calculator functionality
43 of 43 recent reviews analyzed · high confidence · Frustrated overall
Read the full review analysisUnlock 2 more frustration themes and 2 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for E85 App
How's the Utilities market?
E85 App serves a specialized automotive utility niche, maintaining a 3.72 rating across 43 analyzed reviews. The reliance on community-verified data creates a unique barrier to entry, though the current ad-heavy monetization model limits its growth relative to the high utility of the blend calculator.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for E85 App
Where is it heading?
Users report: The automotive utility market is consolidating around apps that provide high-accuracy, real-time data. E85 App is currently exposed due to technical instability and intrusive ads, which risks driving its core power-user base toward manual, spreadsheet-based alternatives.
- The latest release (v6.2.6) added blend percentage sliders, showing active feature investment rather than maintenance mode.
- Intrusive ad overlays continue to trigger negative reviews, which limits the conversion rate to the ad-free subscription tier.
The SWOT
- Community-verified ethanol data provides a data-accuracy barrier that static government databases cannot match
- Implementing a user-driven station submission workflow would improve map coverage and increase community engagement
Next best moves
Deprecate full-screen uncloseable ads because they block core map utility → increase user retention
+ 1 more prioritized moveThe counter-intuitive read
The app's reliance on community-verified data is its primary asset…
Read the full takeSince the last report: The app's core feature set, pricing, and user sentiment remain unchanged since the previous report. The primary update is a more precise articulation of the app's value proposition regarding seasonal fuel blend transparency.
Bottom line
E85 App holds a unique position in the flex-fuel market, but the current ad-heavy monetization strategy actively degrades the utility that drives its retention. Shifting to a less intrusive monetization model would unlock the growth potential of its community-verified data set.
Unlock 1 critical friction, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is E85 App accurate for finding fuel?
Does E85 App have intrusive ads?
Is the blend calculator reliable?
Sources
- [1] App Store, source
Report last updated