# Jetlog vs Simple FTL Calculator

The clearest difference is price: Jetlog at Free against Simple FTL Calculator's $3.99. Jetlog also leads on update cadence (every 10 days vs every 4 months). Simple FTL Calculator's advantage is in-app purchases (none vs 3) and iOS requirement (16.4 vs 26.0). On ads and device support there is nothing between them.

Jetlog is free to download; Simple FTL Calculator costs $3.99 up front. Jetlog sells 3 in-app purchases, starting at $2.99 per month. Simple FTL Calculator asks for nothing beyond the download.

Jetlog ships an update every 10 days, Simple FTL Calculator every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Jetlog | Simple FTL Calculator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Size | 35 MB | 50 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Deskpage](https://appshunter.io/developer/579935294) | [Yiu Leung Sze](https://appshunter.io/developer/1816049574) |

## What reviewers say

### Jetlog

[App page](https://appshunter.io/ios/app/jetlog-pilot-logbook/id6468457179)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $29.99 | per year |
| Logbook AI Scans Credit (50) | $2.99 | one-time |


### Simple FTL Calculator

[App page](https://appshunter.io/ios/app/simple-ftl-calculator/id6746280039)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jetlog free?

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

### Is Simple FTL Calculator free?

Simple FTL Calculator costs $3.99, with no in-app purchases.

### Do Jetlog or Simple FTL Calculator have ads?

Neither Jetlog nor Simple FTL Calculator shows ads.

### Which is updated more often, Jetlog or Simple FTL Calculator?

Jetlog ships an update every 10 days, and Simple FTL Calculator every 4 months. Most recently, Jetlog was updated on October 24, 2026 and Simple FTL Calculator on October 25, 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.*