# ToolKeeper vs Tail Number offline database

The clearest difference is update cadence: ToolKeeper at every 2 days against Tail Number offline database's monthly. Tail Number offline database's advantage is iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

ToolKeeper ships an update every 2 days, Tail Number offline database monthly. The most recent releases landed on May 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ToolKeeper | Tail Number offline database |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tail-number-offline-database/id6736601525/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | — | Free |
| Size | 14 MB | 78 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luke Pilkington](https://appshunter.io/developer/1515186312) | [Dan Driscoll](https://appshunter.io/developer/985477299) |

## What reviewers say

### ToolKeeper

[App page](https://appshunter.io/ios/app/toolkeeper/id6444084304)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ToolKeeper free?

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

### Is Tail Number offline database free?

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

### Do ToolKeeper or Tail Number offline database have ads?

Neither ToolKeeper nor Tail Number offline database shows ads.

### Which is updated more often, ToolKeeper or Tail Number offline database?

ToolKeeper ships an update every 2 days, and Tail Number offline database monthly. Most recently, ToolKeeper was updated on May 17, 2026 and Tail Number offline database on September 9, 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.*