Report updated Jun 10, 2026
N Numbers
For pilots and aviation professionals who require reliable, offline access to aircraft registration data while in flight or at remote airports.
N Numbers is an established reference app that is a paid app. With a 3.2/5 rating from 34 reviews, it shows polarized user reception. Users particularly appreciate offline database access allows pilots to identify aircraft ownership without requiring active cellular data connections, though stale registration data prevents accurate identification of aircraft ownership for recently registered or transferred planes remains a common concern.
What is N Numbers?
N Numbers is an aviation reference app for iOS and Android that provides offline access to the FAA aircraft registration database.
Pilots hire N Numbers to identify aircraft ownership in remote locations or during flight where cellular data is unavailable.
Current Momentum
v3.7 · 19mo ago
Zombie- Added Dark Mode in latest release
- Ships infrequent database refresh updates
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Full FAA registration database stored locally within the app for search without cellular or WiFi connectivity
Lookup tool for aircraft registration data
Downloadable database refreshes for current registration information
UI color scheme adjustment for low-light environments
How much does it cost?
- $0.99 one-time purchase on iOS
Low-cost, one-time purchase model targets individual pilots seeking a utility-focused reference tool.
Who Built It?
Post River Software
Providing specialized utility and reference tools for aviation professionals and technical developers. Solving niche data access problems.
Portfolio
6
Apps
What other apps does Post River Software make?
Explore the full Post River Software report
Portfolio breakdown, audience, momentum, and every app published by Post River Software.
What do users think recently?
High confidence · 26 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate offline database access allows pilots to identify aircraft ownership without requiring active cellular data connections, but report stale registration data prevents accurate identification of aircraft ownership for recently registered or transferred planes.
Limited review volume (26 reviews). Sentiment analysis will deepen as more data lands.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for N Numbers?
Where is it available?
Localized markets (1)
How's The Reference Market?
How does it evolve in the Reference market?
N Numbers holds a #79 Paid rank in its US category, reflecting its niche status. The lack of database updates since 2019 creates a significant performance gap compared to category leaders.
Rank progression
1 active ranking tracked — 30-day window
The rivals identified
Same space(2)
Provides a high-utility reference service that competes for the same 'quick-lookup' user intent as the target app.
Differentiators
- Focuses on rapid data retrieval for broad search queries rather than specialized aviation-specific database offline access.
- Leverages a mature, long-standing infrastructure that provides consistent performance for high-volume lookup requests.
This app dominates the aviation reference category with a massive user base and high-frequency update cadence.
Differentiators
- Maintains a massive, highly active user base that creates a significant barrier to entry for niche tools.
- High-frequency release schedule ensures the app remains compatible with the latest iOS versions and hardware standards.
New entrants(1)
Demonstrates rapid growth in the reference category by leveraging specialized identification technology for niche hobbyists.
Differentiators
- Utilizes image recognition technology to automate identification, shifting from manual database search to visual-first discovery.
- Monetizes through a modern subscription-based model that contrasts with the target app's low-cost one-time purchase.
Compare N Numbers against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for N Numbers
Strengths to defend, gaps to attack
Core Strengths
- Offline-first database architecture enables cockpit utility in remote zones
- Low-cost entry barrier attracts hobbyist pilots
- Dark mode improves cockpit usability
Critical Frictions
- Multi-year database staleness renders core lookup unreliable
- Removal of search history export alienates professional users
- Lack of recent feature updates
Growth Levers
- Implement camera-based tail number scanning
- Integrate Mode S code lookup for ADSB traffic
- Introduce a subscription tier to fund regular data refreshes
Market Threats
- High-frequency update cadence of category leaders
- Potential for free, web-based lookup tools to displace niche apps
- Declining trust due to stale data
What are the next best moves?
Ship automated database refresh pipeline because stale data is the #1 complaint → restore core utility
Stale data is the top complaint in sentiment analysis.
Trade-off: Pause UI polish work — data accuracy is the primary churn driver.
Pivot to subscription model because maintenance costs exceed current revenue → fund ongoing data updates
One-time purchase model lacks incentive for continuous database maintenance.
Trade-off: Accept temporary drop in new user acquisition — existing users need reliability over low cost.
Sunset legacy manual lookup if camera-based scanning is prioritized because manual entry is a friction point → increase usage speed
Users requested camera-based input to streamline ramp-side identification.
Trade-off: Deprioritize Android feature parity — iOS remains the primary revenue driver.
A counter-intuitive read
The app's offline-first architecture is a liability, not an asset, because it forces a manual update cadence that cannot compete with the real-time data streams of modern aviation apps.
Feature Gaps vs Competitors
- Real-time data synchronization (available in Airports but absent here)
- Camera-based tail number scanning (available in Coin ID but absent here)
Key Takeaways
N Numbers holds a unique niche through its offline-first architecture, but the multi-year database staleness destroys its value for professional pilots, so the PM must prioritize an automated update pipeline to prevent total churn.
Where Is It Heading?
Declining
The aviation reference market is shifting toward real-time, cloud-connected tools that offer higher data accuracy and broader utility. N Numbers is currently exposed due to its reliance on a static, offline database that has not been refreshed in years, so the app will likely continue to lose market share to competitors with higher update cadences unless the developer shifts to a sustainable, recurring revenue model.
The multi-year lack of database refreshes leads to inaccurate ownership data, which directly erodes the app's primary value proposition for professional pilots.
The removal of search history export features limits professional utility, causing a decline in usage among the app's most frequent and valuable users.