# Mil Fuel Check vs WhenAvailable

The clearest difference is price: WhenAvailable at Free against Mil Fuel Check's $4.99. WhenAvailable also leads on update cadence (monthly vs every 6 months). Mil Fuel Check's advantage is in-app purchases (none vs 2) and review sentiment (64% vs 50%). On rating, ads, device support and iOS requirement there is nothing between them.

WhenAvailable is free to download; Mil Fuel Check costs $4.99 up front. WhenAvailable sells 2 in-app purchases, starting at $37.99 per year. Mil Fuel Check asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for Mil Fuel Check against 4.3 for WhenAvailable. Both are backed by a comparable volume of ratings — 21 and 7 respectively. Written reviews are what separate them: 64% of Mil Fuel Check's written reviews are positive against 50% of WhenAvailable's.

Mil Fuel Check ships an update every 6 months, WhenAvailable monthly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mil Fuel Check | WhenAvailable |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.3 (21 ratings)](https://appshunter.io/ios/app/mil-fuel-check/id1257185111/reviews)** | [4.3 (7 ratings)](https://appshunter.io/ios/app/whenavailable/id1552751218/reviews) |
| Number of ratings | **21** | 7 |
| Positive reviews | **63.6% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Paid | **Freemium** |
| Best chart rank | **#56** | — |
| Size | 3 MB | 58 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phoenix Flight Software](https://appshunter.io/developer/1257184870) | [WhenAvailable LLC](https://appshunter.io/developer/1552751220) |

## What reviewers say

### Mil Fuel Check

[App page](https://appshunter.io/ios/app/mil-fuel-check/id1257185111)

**Currently charting:** #56 Top Paid · Productivity (US App Store)

This aviation fuel monitoring tool helps pilots track fuel burn with precise, second-by-second calculations. It offers customizable reserve times, bingo fuel settings, and UI themes for efficient flight management.

**Highlights:** Adjustable reserve times (VFR/IFR), Customizable bingo fuel settings, Pop-up notification timers, Green/Black UI themes, External tank fuel settings, High-accuracy continuous clock, Fuel calculations to the pound

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### WhenAvailable

[App page](https://appshunter.io/ios/app/whenavailable/id1552751218)

Easily find the best date and time for group events. Suggest multiple options and let attendees vote, or RSVP to invitations. Guests don't need the app to participate.

**Highlights:** Create unlimited polls, Invite guests via email or link, Real-time poll results, Add themes to polls, RSVP to invitations, Guest group storage

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $37.99 | per year |
| OneTime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Mil Fuel Check free?

Mil Fuel Check costs $4.99, with no in-app purchases.

### Is WhenAvailable free?

WhenAvailable is free to download, with in-app purchases available.

### Which has better reviews, Mil Fuel Check or WhenAvailable?

Mil Fuel Check is rated higher. Mil Fuel Check averages 4.3 out of 5 from 21 ratings, while WhenAvailable averages 4.3 from 7 ratings.

### Do Mil Fuel Check or WhenAvailable have ads?

Neither Mil Fuel Check nor WhenAvailable shows ads.

### Which is updated more often, Mil Fuel Check or WhenAvailable?

Mil Fuel Check ships an update every 6 months, and WhenAvailable monthly. Most recently, Mil Fuel Check was updated on October 29, 2026 and WhenAvailable on October 24, 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.*