Comparison

Hampton E85 Mix Calculator vs Nature Mapping Jackson Hole

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

Head to head
About

Hampton E85 Mix Calculator

Easily calculate the precise amounts of E85 and pump gas needed to achieve your desired ethanol blend. This tool estimates your current fuel level and provides an estimated octane rating for your mix. It works offline, making it convenient for use at any gas station.

Highlights
  • Calculate exact E85 and pump gas amounts
  • Estimate current fuel level
  • View estimated octane rating
  • Offline functionality
  • Adjustable ethanol and octane defaults
  • Real-world tested by enthusiasts
Features
Read full description

Stop guessing at the pump. The Hampton E85 Calculator gives you the exact gallons of E85 and pump gas to add for any target ethanol blend — from E30 to E85. Enter your tank size, current fuel level, and target mix Get precise fill amounts instantly See your estimated octane rating Works offline, no signal needed at the pump Fuel level helper estimates your tank from miles-to-empty Adjustable ethanol and octane defaults for your region Built by Hampton Tuning and real-world tested by enthusiasts. Whether you're on a flex fuel tune or dialing in a specific blend, this is the only tool you need at the pump.

About

Nature Mapping Jackson Hole

Contribute to wildlife research by recording and submitting observations. This app supports community science initiatives focused on long-term wildlife data collection in specific regions. Participate in various projects to help inform wildlife and land management decisions.

Highlights
  • Wildlife observation recording
  • Community science projects
  • Data submission for wildlife management
  • Multiple project participation
  • Wildlife identification training
  • Data vetting by biologists
Features
Read full description

Nature Mapping Jackson Hole (NMJH) is a community science initiative founded in 2009 by Meg and Bert Raynes and now supported by the Jackson Hole Wildlife Foundation (JHWF). NMJH seeks to obtain long-term, accurate wildlife data in Teton County WY, Lincoln County WY, and Teton County ID via volunteer use of this application. Prior to using the app, volunteers are required to take a certification course where they are trained in NMJH data collection protocols and wildlife identification. Each wildlife observation submitted to NMJH is carefully vetted by a wildlife biologist to ensure data quality. After being verified, data are made available to JHWF partners such as the Wyoming Game and Fish Department (WGFD), National Parks Service (NPS) and US Forest Service (USFS), where they can be used to inform wildlife and land management decisions. To date, over 80,000 wildlife observations have been verified and shared with our partners. There are several NMJH projects in which volunteers can participate. Projects include: · Wildlife Tour: Visitors to Jackson are encouraged to report wildlife seen on ecotours. Does not require Nature Mapping certification training · Casual Observations: Used to report incidental observations of wildlife in the study area · Project Backyard: Residents can submit weekly wildlife sightings in their backyards · Moose Day: Annual moose survey conducted on one day in late winter. · Snake River Float: Biweekly summer bird count held by boat. · Beaver Project: Citizen scientists survey stream stretches near Jackson and indicate if that stream has beaver activity or not. · Mountain Bluebird Monitoring: Nestboxes are surveyed by Nature Mappers once per week throughout the summer Please email info@jhwildlife.org for more information on Nature Mapping or to sign up for a certification training.

Screenshots

Hampton E85 Mix Calculator2 screens
Nature Mapping Jackson Hole4 screens

Verdict

The call

The clearest difference is price: Nature Mapping Jackson Hole at Free against Hampton E85 Mix Calculator's $2.99. Nature Mapping Jackson Hole also leads on update cadence (fortnightly vs every 5 weeks) and device support (3 vs 1). Hampton E85 Mix Calculator's advantage is chart position (#198 vs unranked). On rating, ratings volume, 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

Nature Mapping Jackson Hole is free to download; Hampton E85 Mix Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Hampton E85 Mix Calculator against 5.0 for Nature Mapping Jackson Hole. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

Hampton E85 Mix Calculator ships an update every 5 weeks, Nature Mapping Jackson Hole fortnightly. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Hampton E85 Mix Calculator versus Nature Mapping Jackson Hole: the parameters behind the verdict, then further details
ParameterHampton E85 Mix CalculatorNature Mapping Jackson Hole
Price$2.99Free — better
Rating5.0 (3 ratings)5.0 (2 ratings)
Number of ratings3 — better2
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#198 — better—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size6 MB36 MB
Age rating4+4+
DeveloperDaniel HamptonJackson Hole Wildlife Foundation, Inc.

Customer experience

Hampton E85 Mix Calculator

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Nature Mapping Jackson Hole

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hampton E85 Mix Calculator

No in-app purchases

None

Nature Mapping Jackson Hole

No in-app purchases

Questions

Is Hampton E85 Mix Calculator free?
Hampton E85 Mix Calculator costs $2.99, with no in-app purchases.
Is Nature Mapping Jackson Hole free?
Nature Mapping Jackson Hole is free to download, with no in-app purchases.
Which has better reviews, Hampton E85 Mix Calculator or Nature Mapping Jackson Hole?
Hampton E85 Mix Calculator and Nature Mapping Jackson Hole are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do Hampton E85 Mix Calculator or Nature Mapping Jackson Hole have ads?
Neither Hampton E85 Mix Calculator nor Nature Mapping Jackson Hole shows ads.
Which is updated more often, Hampton E85 Mix Calculator or Nature Mapping Jackson Hole?
Hampton E85 Mix Calculator ships an update every 5 weeks, and Nature Mapping Jackson Hole fortnightly. Most recently, Hampton E85 Mix Calculator was updated on October 29, 2026 and Nature Mapping Jackson Hole on November 3, 2026.

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