Star Exposure Calculator is a technical utility for astrophotographers that calculates exposure settings and telescope optical properties on iOS.
The App DNA
What makes this app unique?
The app removes the cognitive load of manual optical calculations, allowing users to achieve pin-sharp star images without complex mental math.
For Astrophotographers and telescope users requiring precise exposure and optical calculations.
What does it look like?
Key features
Calculates exposure settings using simple or complete NPF rule for pin-sharp stars.
Reference database containing known sensor properties for various camera models.
Calculates focal ratio, magnification, and true field of view.
How much does it cost?
The app is currently distributed as a free utility without visible in-app purchases or subscription gates.
Velocity
Maintenance developmentperformanceShow more...
The app currently operates at a maintenance cadence, with only one release recorded in the last 165 days. Development activity is minimal, focusing exclusively on minor database expansions and general maintenance rather than new feature development. There is no evidence of live operations or recurring content updates. The current trajectory suggests a focus on long-term stability rather than active feature growth.
Who built it?
Dejan Boras
3 apps tracked · Photo & Video
Luminis Light Meter Pro
Luminis Light MeterUser 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 Star Exposure Calculator
How's the Photo & Video market?
Star Exposure Calculator operates as a niche technical utility within the Photo & Video category. The absence of monetization or subscription gates suggests a focus on community utility rather than revenue generation.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Star Exposure Calculator
Where is it heading?
The astrophotography utility market remains stable, but success depends on keeping pace with hardware sensor specifications. Star Exposure Calculator's current maintenance posture risks losing users to rivals who offer more frequent database updates.
- The maintenance-only release cadence suggests the developer is prioritizing stability over new feature expansion, which limits growth potential.
The SWOT
- NPF rule calculator provides technical precision
- Camera database acts as a reference barrier
- Automated camera sync for faster workflow
Next best moves
Update camera database because sensor technology evolves rapidly → maintain technical relevance
The counter-intuitive read
The app's maintenance-only state is a feature for users who value a static…
Read the full takeBottom line
Star Exposure Calculator serves as a stable technical reference, but the lack of development velocity risks obsolescence as new camera sensors enter the market.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Star Exposure Calculator free to use?
Does Star Exposure Calculator support all camera models?
What is the difference between the NPF and 500 rules?
Sources
- [1] App Store, source
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