# Flight Calcs vs eFlightBook

The clearest difference is in-app purchases: eFlightBook at none against Flight Calcs's 2. eFlightBook also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (14.2 vs 17.6). On price, ads and device support there is nothing between them.

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

Flight Calcs ships an update every 2 months, eFlightBook fortnightly. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Flight Calcs | eFlightBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flight-calcs-pilot-toolkit/id444281468/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 39 MB | 101 MB |
| Requires iOS | 17.6 | **14.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Verosocial Studio](https://appshunter.io/developer/354566841) | [PH-Informatik](https://appshunter.io/developer/595299933) |

## What reviewers say

### Flight Calcs

[App page](https://appshunter.io/ios/app/flight-calcs-pilot-toolkit/id444281468)

This app provides pilots with essential flight calculation tools for logging time, planning routes, and performing preflight checks. It offers accurate, real-world aviation calculations with familiar terminology and unit conventions.

**Highlights:** Pilot time logging and summing, Flight block/duty time calculation, Time-Speed-Distance (TSD) calculations, Wind component and True Airspeed (TAS) resolution, Density altitude computation, Fuel burn estimation, Weight and balance verification

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PilotCalculators pro monthly | $1.99 | per month |
| Pilot Calculators pro lifetime | $9.99 | one-time |


### eFlightBook

[App page](https://appshunter.io/ios/app/eflightbook/id6476969610)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flight Calcs free?

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

### Is eFlightBook free?

eFlightBook is free to download, with no in-app purchases.

### Do Flight Calcs or eFlightBook have ads?

Neither Flight Calcs nor eFlightBook shows ads.

### Which is updated more often, Flight Calcs or eFlightBook?

Flight Calcs ships an update every 2 months, and eFlightBook fortnightly. Most recently, Flight Calcs was updated on September 30, 2026 and eFlightBook on October 10, 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.*