# Holdover Calculator vs FBOlink

The clearest difference is review sentiment: Holdover Calculator at 83% against FBOlink's 8%. Holdover Calculator also leads on rating (5.0 vs 3.5) and chart position (#197 vs unranked). FBOlink's advantage is monetization model (free vs subscription) and ratings volume (14 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Holdover Calculator sells 1 in-app purchase, starting at $9.99 per year and FBOlink sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Holdover Calculator holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: FBOlink has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Holdover Calculator's written reviews are positive against 8% of FBOlink's.

Holdover Calculator ships an update monthly, FBOlink every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Holdover Calculator | FBOlink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/holdover-calculator/id768019181/reviews)** | [3.5 (14 ratings)](https://appshunter.io/ios/app/fbolink-messaging/id1329221786/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | **83.3% of reviews** | 8.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Subscription | **Free** |
| Best chart rank | **#197** | — |
| Size | 24 MB | 13 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kilo Lima Management, LLC](https://appshunter.io/developer/767164799) | [Send Solutions, LLC](https://appshunter.io/developer/1120177382) |

## What reviewers say

### Holdover Calculator

[App page](https://appshunter.io/ios/app/holdover-calculator/id768019181)

**Currently charting:** #197 Top Grossing · Weather (US App Store)

This tool simplifies the calculation of aircraft de-icing fluid holdover times. It offers manual input or automatic weather data retrieval for quick and accurate results. The app provides alerts for expired times and includes a pre-takeoff check timer.

**Highlights:** Accurate holdover time verification, User-friendly input display, Automatic METAR weather retrieval, Location-based METAR search, Active holdover time countdown, Audible and visible expiration alerts, Pre-takeoff contamination check timer

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Subscription | $9.99 | per year |


### FBOlink

[App page](https://appshunter.io/ios/app/fbolink-messaging/id1329221786)

Facilitates direct, real-time text messaging between aircrew and Fixed Base Operator (FBO) Customer Service Representatives. Enables communication of itinerary changes and passenger requests from anywhere globally, including when outside radio range. Includes aircraft details and read receipts for efficient coordination.

**Highlights:** Direct real-time messaging, Global communication via internet, Includes aircraft tail number and type, Read receipts for confirmation, In-flight itinerary updates, Passenger request accommodation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 MyTIS Credits | $5.00 | one-time |


## Frequently asked questions

### Is Holdover Calculator free?

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

### Is FBOlink free?

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

### Which has better reviews, Holdover Calculator or FBOlink?

Holdover Calculator is rated higher. Holdover Calculator averages 5.0 out of 5 from 1 ratings, while FBOlink averages 3.5 from 14 ratings.

### Do Holdover Calculator or FBOlink have ads?

Neither Holdover Calculator nor FBOlink shows ads.

### Which is updated more often, Holdover Calculator or FBOlink?

Holdover Calculator ships an update monthly, and FBOlink every 2 months. Most recently, Holdover Calculator was updated on November 6, 2026 and FBOlink on November 2, 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.*