# Leon vs TAILLOG

The clearest difference is review sentiment: TAILLOG at 100% against Leon's 9%. TAILLOG also leads on rating (4.9 vs 4.3) and iOS requirement (13.0 vs 16.0). Leon's advantage is update cadence (every 2 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TAILLOG holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 8 and 10 respectively. Written reviews point the same way: 9% of Leon's written reviews are positive against 100% of TAILLOG's.

Leon ships an update every 2 weeks, TAILLOG every 2 months. The most recent releases landed on September 15, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Leon | TAILLOG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (8 ratings)](https://appshunter.io/ios/app/leon/id443136426/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/taillog/id947286350/reviews)** |
| Number of ratings | 8 | **10** |
| Positive reviews | 9.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 36 MB | 39 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Leon Software](https://appshunter.io/developer/443136429) | [TAILLOG APS](https://appshunter.io/developer/947286349) |

## What reviewers say

### Leon

[App page](https://appshunter.io/ios/app/leon/id443136426)

This application provides aviation crew members with mobile access to crew information managed by air operators. It supports aircraft operations with features for scheduling, rostering, dispatch, and flight watch, all accessible through a central online database.

**Highlights:** Mobile crew information access, Aircraft operations support, Scheduling and rostering, Airplane dispatch, Online flight watch, Centralized database access

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

**In-app purchases:** none


### TAILLOG

[App page](https://appshunter.io/ios/app/taillog/id947286350)

This app automates flight plan reporting for certified pilots, eliminating manual calculations and paperwork. It allows for last-minute changes, automatic registration of flight events, and generates a PDF flight log for easy archiving.

**Highlights:** Automatic flight plan registration, Last-minute changes from cockpit, Automatic off/on-block registration, Automatic airborne/on-ground registration, Waypoint passage tracking, Fuel notification system, Automated PDF flight log generation

**In-app purchases:** none


## Frequently asked questions

### Is Leon free?

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

### Is TAILLOG free?

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

### Which has better reviews, Leon or TAILLOG?

TAILLOG is rated higher. Leon averages 4.3 out of 5 from 8 ratings, while TAILLOG averages 4.9 from 10 ratings.

### Do Leon or TAILLOG have ads?

Neither Leon nor TAILLOG shows ads.

### Which is updated more often, Leon or TAILLOG?

Leon ships an update every 2 weeks, and TAILLOG every 2 months. Most recently, Leon was updated on September 15, 2026 and TAILLOG on September 14, 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.*