Comparison

e85Cal vs Race Stats

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

Head to head
About

e85Cal

This app assists users in calculating the precise amounts of standard and ethanol gasoline needed to achieve a desired ethanol percentage in their fuel mix. It simplifies the process by taking into account tank size, current fuel level, and the ethanol content of available fuel types.

Highlights
  • Calculate ethanol percentage goal
  • Enter gas tank size
  • Input standard pump gas ethanol %
  • Input ethanol pump gas ethanol %
  • Set target ethanol % mix
  • Enter current fuel level %
Features
Read full description

e85Cal help you calculate your ethanol percentage goal. It fast, simple, and easy to use. Just enter the following information: 1) How big is your gas tank? 2) What is the ethanol % in the standard pump gas? 3) What is the ethanol % in the ethanol pump gas? 4) What is your target ethanol % mix goal? 5) What is your current ethanol % min in your vehicle? 6) What is your current fuel level % in your vehicle? Results will display how many gallons or liters of standard and ethanol gas to pump in your vehicle based on your input.

About

Race Stats

Track your vehicle's performance with real-time GPS speed and G-force readings. Measure acceleration from 0-60 mph or 0-100 km/h, and time your 1/4 mile or 400m runs. Simulate drag races and analyze your car's capabilities to improve driving speed.

Highlights
  • GPS speed tracking
  • Real-time G-force measurement
  • 0-60 mph / 0-100 km/h timer
  • 1/4 mile / 400m timer
  • Drag race simulation
  • Automatic start/stop timer
  • Imperial/metric unit switching
Features
Read full description

Your phone is the drag strip — and now the race track too. Race Stats turns your iPhone into a GPS performance timer for cars and motorcycles. Time 0-100 km/h and quarter-mile runs, watch your lean angle live through every corner, and log lap times — no extra hardware needed. NEW FOR RIDERS • Live lean angle for both sides, with a rider that leans with you • Max left and max right lean tracked separately, every session • Lap timer: set your start/finish line and ride — laps are timed automatically • Spoken lap times and gap to your best, straight to your headset • Lap map of your best lap, coloured by lean angle or speed • Share a session slip with your best lap, map and max lean • Best lap, last lap and the gap to your best • A garage for cars and motorcycles, with lean records per bike DRAG & ACCELERATION TIMING • 0-100 km/h (0-60 mph), 0-160, 1/8 mile, ¼ mile, 1 mile • Custom speed ranges and rolling starts, e.g. 60-100 km/h (Pro) • Auto-arm when stopped, auto-start the moment you launch • GPS fused with the accelerometer for precise launch and finish detection • Weather-corrected results (density altitude), like a real drag strip • Estimated wheel horsepower from your run • Personal best alerts on every run HISTORY & SHARING • Every run saved with its speed curve • Personal bests flagged automatically • Compare two runs side by side • Share a branded timing slip with your crew • Export full telemetry as CSV MORE • Real-time g-force meter: launch, braking and cornering grip • Global leaderboards per benchmark — see where you rank • Maintenance reminders: insurance, road tax, oil and service dates • Works with external Bluetooth GPS receivers (RaceBox, NMEA) for 10-25 Hz timing • Metric and imperial units • Your runs and garage are stored on your device FREE AND PRO Timing your runs and the live lean angle gauge are free. Race Stats Pro unlocks the lap timer, saved track sessions with lap maps, the g-force meter, the full garage and run history, run comparison, CSV export and external GPS support. Always obey the law and ride and drive responsibly. Use Race Stats only on closed courses, tracks and drag strips, and mount your phone securely before you set off. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.smpath.com/racestats/policy

Screenshots

e85Cal2 screens
Race Stats4 screens

Verdict

The call

The clearest difference is review sentiment: e85Cal at 83% against Race Stats's 40%. e85Cal also leads on in-app purchases (none vs 2) and rating (4.7 vs 4.5). Race Stats's advantage is update cadence (every 8 days vs every 4 months) and ratings volume (644 vs 37). On price, 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

Both are free to download. Race Stats sells 2 in-app purchases, starting at $1.99 per month. e85Cal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

e85Cal holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Race Stats has 644 ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 83% of e85Cal's written reviews are positive against 40% of Race Stats's.

UpkeepUpdate frequency

e85Cal ships an update every 4 months, Race Stats every 8 days. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
e85Cal versus Race Stats: the parameters behind the verdict, then further details
Parametere85CalRace Stats
PriceFreeFree
Rating4.7 (37 ratings) — better4.5 (644 ratings)
Positive reviews83.3% of reviews — better39.6% of reviews
Number of ratings37644 — better
Update frequencyEvery 4 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.1 — better16.4
Further details — not scored
Size15 MB75 MB
Age rating4+4+
DeveloperMichael JoeSmooth Path Digital S.R.L

Customer experience

e85Cal

All ratings35 ratings
Positive91.4%
Neutral0.0%
Negative8.6%
Written reviews12 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Race Stats

All ratings642 ratings
Positive86.1%
Neutral3.7%
Negative10.1%
Written reviews53 reviews
Positive39.6%
Neutral11.3%
Negative49.1%

Bugs and requests

e85Cal

Not enough reviews yet to summarise bugs or requests.

Race Stats

Reported bugs

3 issues
  • App freezes or crashes on some devices
  • Slow to respond during rapid acceleration
  • Inaccurate speed and time readings compared to actual vehicle performance

Requested features

4 requests
  • Add 80-120 km/h, 0-60 mph, and 0-200 km/h measurements
  • Implement a start button and countdown for consistent runs
  • Allow users to delete individual past runs
  • Provide CarPlay support

In-app purchases

None

e85Cal

No in-app purchases

2 purchases

Race Stats

Subscriptions2
  • Monthly Race Stats Pro$1.991 Month
  • Yearly Subscription$9.991 Year

Questions

Is e85Cal free?
e85Cal is free to download, with no in-app purchases.
Is Race Stats free?
Race Stats is free to download, with in-app purchases available.
Which has better reviews, e85Cal or Race Stats?
e85Cal is rated higher. e85Cal averages 4.7 out of 5 from 37 ratings, while Race Stats averages 4.5 from 644 ratings.
Do e85Cal or Race Stats have ads?
Neither e85Cal nor Race Stats shows ads.
Which is updated more often, e85Cal or Race Stats?
e85Cal ships an update every 4 months, and Race Stats every 8 days. Most recently, e85Cal was updated on October 24, 2026 and Race Stats on October 24, 2026.

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