# N Numbers — In-Flight Tail Number Lookup > Offline aircraft tail number lookup with a complete FAA database. (iPhone/iPad app by Post River Software.) - Source: https://appshunter.io/ios/app/n-numbers/id385827659 (this page in markdown: same URL + `.md`) - Developer: [Post River Software](https://appshunter.io/developer/325439356) - Category: Reference, Travel - Price: $0.99 - Rating: 3.20/5 from 27 App Store ratings · 30 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 18 MB - Languages: American English - Released: 2010-08-17 - Data updated: 2026-08-26 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/n-numbers/id385827659/reviews.md ## What is N Numbers? This is the classic tail number search program, but with a twist. This app works in the air, making it the perfect tool for pilots while aviating or at remote airports. The entire FAA registration database (highly compressed) is included in the app - no cell signal or WiFi hotspot needed. And of course, the database can be updated when back on the ground. ## Key features - Offline tail number lookup - Includes FAA registration database - Works in-flight - Database updates on ground - Compressed database ## Chart rankings - #200 in Top Paid · Reference (US App Store) ## Recent user reviews (10 of 30) All indexed reviews: https://appshunter.io/ios/app/n-numbers/id385827659/reviews.md ### 5/5 — Great app that I use on almost every flight *2024-10-24* I’ve been using this app for a few years. I use it on almost every flight out of curiosity to look up certain numbers I hear on frequency. The database had not been updated in nearly 2 years and it was becoming less useful so I reached out to the developer and asked when the update would happen and within a couple days he provided an update. Great response time and follow up. ### 5/5 — Update database *2024-09-11, version 3.7* Needs database from FAA website update. ### 2/5 — Used to be great *2024-08-18, version 3.7* Seems like they haven’t updated the data in a couple of years. ### 1/5 — No longer updated - stale data *2024-02-20, version 3.7* Database is no longer updated. Was a great little app, but it is no longer useful. Please consider updating. I would pay for it. ### 2/5 — N *2024-01-13, version 3.7* Way out of date ### 3/5 — Nice but out of date *2023-11-14, version 3.7* Nice and useful but database is over a year old ### 3/5 — Long time to update. *2023-07-31, version 3.7* I echo MCguiver2’s experience except I have owned my airplane now for 17 months and it’s still not updated on their website it. The FAA has had it correct for nine months. ### 3/5 — Long time to update ownership changes *2023-07-23* I use this app and enjoy it. However, I bought my airplane a year and a half ago and it still hasn’t been updated to show me as the owner. It shows the owner from two years ago. The FAA shows me as the owner, even though that took 11 months to happen. I have the latest update downloaded, so I don’t understand from where you are getting your information and why it lags so far behind the FAA database for ownership. ### 1/5 — Bait and Switch *2022-12-29, version 3.7* This app jumped the shark . Worked great for over a decade , then for some reason our searches are no longer downloadable which means it’s worthless at this point . Seems developer made his money and then dropped the ball . No updates for over 2 years but removed the only function that made this app stand out above the rest . ### 4/5 — N X 211 *2022-10-23, version 3.7* It would be nice if you did have the Spirt of St. Louis in the database for at least fun and historic moments. ## Frequently asked questions about N Numbers ### What does the N Numbers app do? The N Numbers app allows you to look up aircraft tail numbers directly from your device. It's designed to work even when you don't have a cell signal or WiFi connection, making it ideal for use in the air or at remote airports. ### How does the app work offline? The app includes a highly compressed version of the entire FAA registration database. This means all the necessary data is stored directly on your device, eliminating the need for an internet connection for lookups. ### Can I update the database? Yes, the database can be updated when you are back on the ground and have an internet connection. This ensures you have the latest registration information available. ### Who is this app for? This app is specifically designed for pilots and aviation professionals who need quick access to aircraft registration information while flying or in areas with limited connectivity. It's a valuable tool for aviating or when at remote airfields. ## Version history (last 5 releases) ### 3.7 — 2019-11-01 Adds support for iOS 13 and Dark Mode, perfect for night flying. And comes with a fresh database update! ### 3.6 — 2019-06-03 We've added a map feature to show where the plane is registered. ### 3.5 — 2018-07-15 + Uses full screen on iPad + Fixes issue where database update sometimes wouldn't load + Updated database just in time for your journey to AirVenture 2018 ### 3.4 — 2017-11-01 + Support for iPhone X + Updated Plane & Owner Database ### 3.3 — 2017-07-18 + Database refresh - just in time see whose on frequency en-route to AirVenture + Minor bug fixes and improvements ## Apps similar to N Numbers | App | Rating | Price | Category | | --- | --- | --- | --- | | [FAR/AIM - FAA Pilot Reference](https://appshunter.io/ios/app/faraim-faa-pilot-reference/id328979186) | 4.7 (1,084) | Free | Reference | ## More apps by Post River Software - [Asphalt Pro](https://appshunter.io/ios/app/asphalt-pro/id688350313) - [Atomic Letters](https://appshunter.io/ios/app/atomic-letters/id925917614) - [WebScope](https://appshunter.io/ios/app/webscope/id989644100) - [ACE-Editor](https://appshunter.io/ios/app/ace-editor/id6469464234) - [Fly Walk Eat](https://appshunter.io/ios/app/fly-walk-eat/id6736763695) All apps by Post River Software: https://appshunter.io/developer/325439356 ## Related topics [tail number offline database](https://appshunter.io/ios/topics/tail-number-offline-database) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*