Flight Day/Night Calculator is an offline, UTC-based utility for calculating day and night flight time splits for aviation professionals on iOS.
The App DNA
What makes this app unique?
Pilots require precise, repeatable day/night splits for logbook compliance that remain functional in flight environments without active internet connectivity.
For Airline pilots and aviation professionals requiring precise, repeatable day/night flight time calculations for logbook entries.
What does it look like?
Key features
Interactive 3D globe showing flight path, aircraft position, and day/night shading transitions.
UTC-based day/night split calculations using on-device airport database and astronomy algorithms.
Supports up to 20 waypoints with manual ATA timing adjustments for long-range operations.
How much does it cost?
The freemium model gates advanced workflow tools and historical data behind Pro subscriptions while keeping the core calculation engine free.
Velocity
Maintenance developmentnew contentUX improvementsShow more...
With only one release in the observed window and a last update occurring 29 days ago, the app operates at a maintenance cadence. Development is currently focused on enhancing flight visualization tools and data validation. The latest release provides a notable feature expansion, though the overall release frequency remains low. Future updates are expected to follow this sporadic, feature-driven pattern rather than a high-frequency delivery model.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Flight Day/Night Calculator
How's the Utilities market?
Flight Day/Night Calculator occupies a niche in aviation utilities by prioritizing offline-first, UTC-authoritative accuracy. The focus on professional-grade tools differentiates the app from casual flight trackers, though the lack of automatic timezone detection places the burden of precision on the user.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Flight Day/Night Calculator
Where is it heading?
The aviation utility market is consolidating around integrated flight planning suites, placing pressure on standalone tools to provide unique, high-precision utility. Flight Day/Night Calculator remains advantaged by its offline-first, UTC-authoritative focus, which serves as a reliable fallback for professional pilots.
- The latest release introduced 3D Route Globe visualization, signaling active feature investment rather than maintenance-mode stagnation.
The SWOT
- Offline-first architecture removes connectivity dependency for cockpit use
- UTC-authoritative calculation engine provides repeatable results for logbook compliance
- 3D Route Globe visualization offers clear, interactive interface for flight path analysis
- Integration of automated regulatory reporting templates could capture the professional logbook market
- Expansion of high-latitude caution alerts into a broader safety-advisory suite
Next best moves
Ship automatic timezone and DST detection because manual entry is a top usability friction point → reduce calculation errors
The counter-intuitive read
The app's lack of automatic timezone detection is a feature, not a bug…
Read the full takeBottom line
Flight Day/Night Calculator provides a reliable, offline-first engine for logbook compliance. Automating timezone and DST detection would address the primary usability friction, unlocking greater value for professional pilots who require precision in high-latitude and long-range operations.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Flight Day/Night Calculator suitable for long-range flight planning?
Does Flight Day/Night Calculator require an internet connection?
How does Flight Day/Night Calculator handle time zones?
What is the difference between the free and Pro versions?
Sources
- [1] App Store, source
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