# Tail Number offline database vs ZuluTime+GPS

The clearest difference is device support: Tail Number offline database at 3 against ZuluTime+GPS's 1. Tail Number offline database also leads on iOS requirement (13.0 vs 17.0). ZuluTime+GPS's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Tail Number offline database against 5.0 for ZuluTime+GPS. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Tail Number offline database ships an update monthly, ZuluTime+GPS every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Tail Number offline database | ZuluTime+GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tail-number-offline-database/id6736601525/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/zulutime-plus-gps/id6758929375/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 78 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dan Driscoll](https://appshunter.io/developer/985477299) | [Addison English](https://appshunter.io/developer/1875826454) |

## What reviewers say

### Tail Number offline database

[App page](https://appshunter.io/ios/app/tail-number-offline-database/id6736601525)

Access a comprehensive database of aircraft registration information without needing an internet connection. Track the planes you observe in the sky with this offline utility.

**Highlights:** Offline aircraft database, FAA registration lookup, Transport Canada registration lookup, Track seen aircraft, No internet required

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

**In-app purchases:** none


### ZuluTime+GPS

[App page](https://appshunter.io/ios/app/zulutime-plus-gps/id6758929375)

This app provides pilots and others with instant, at-a-glance access to accurate Zulu (UTC) and local time, along with live GPS coordinates including latitude, longitude, altitude, and accuracy. It features a high-contrast dark interface, customizable units, and options to keep the screen on or toggle GPS to save battery.

**Highlights:** Large, easy-to-read time display (Zulu/UTC and local), Live GPS coordinates (latitude, longitude, altitude, accuracy), CAP grid reference calculation, Customizable units (meters/feet), Continuous clock display option, Battery-saving GPS toggle

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

**In-app purchases:** none


## Frequently asked questions

### Is Tail Number offline database free?

Tail Number offline database is free to download, with no in-app purchases.

### Is ZuluTime+GPS free?

ZuluTime+GPS is free to download, with no in-app purchases.

### Which has better reviews, Tail Number offline database or ZuluTime+GPS?

Tail Number offline database and ZuluTime+GPS are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Tail Number offline database or ZuluTime+GPS have ads?

Neither Tail Number offline database nor ZuluTime+GPS shows ads.

### Which is updated more often, Tail Number offline database or ZuluTime+GPS?

Tail Number offline database ships an update monthly, and ZuluTime+GPS every 3 weeks. Most recently, Tail Number offline database was updated on October 24, 2026 and ZuluTime+GPS 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.*