# Hampton E85 Mix Calculator vs Nature Mapping Jackson Hole

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.

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.

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.

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.

## The numbers

| Metric | Hampton E85 Mix Calculator | Nature Mapping Jackson Hole |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/hampton-e85-mix-calculator/id1529634776/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/nature-mapping-jackson-hole/id1606645472/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#198** | — |
| Size | 6 MB | 36 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Hampton](https://appshunter.io/developer/1587337125) | [Jackson Hole Wildlife Foundation, Inc.](https://appshunter.io/developer/1606645474) |

## What reviewers say

### Hampton E85 Mix Calculator

[App page](https://appshunter.io/ios/app/hampton-e85-mix-calculator/id1529634776)

**Currently charting:** #198 Top Paid · Productivity (US App Store)

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:** Vision Pro support

**In-app purchases:** none


### Nature Mapping Jackson Hole

[App page](https://appshunter.io/ios/app/nature-mapping-jackson-hole/id1606645472)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*