Derk Vrijdag
For astronomy hobbyists, stargazers, and amateur radio enthusiasts seeking precise, location-based event notifications.
ISS Detector
Snapshot
Who is Derk Vrijdag?
Providing real-time satellite tracking and celestial event alerts for astronomy enthusiasts and amateur radio operators.
Target audience
Portfolio
Free 2Last updated
ISS Detector
v3.00.026
7mo ago
Publisher DNA
What defines Derk Vrijdag?
Publisher DNA
Primary focus
Satellite and celestial tracking utilities
Scale
indie
Target audience
Astronomy hobbyists, stargazers, and amateur radio enthusiasts seeking precise, location-based event notifications.
Signature Patterns
- •Focus on high-utility, location-based tracking features
- •Integration of specialized data sets like amateur radio satellite frequencies
- •Freemium monetization model
- •Direct utility-based value proposition for niche hobbyists
Portfolio momentum
Released 4 updates in the last 6 months for their single active application, indicating a maintenance-focused development cycle.
Portfolio
What does Derk Vrijdag ship?
Apps
2 apps analysed
Red-themed dark mode reinforces brand utility for outdoor stargazers
- AR-based sky mapping establishes category authority
Single-market publisher, every app ships only to United States.
Based on 1 of 2 apps with localized market data, more coverage rolling in as scans complete · last scanned .
Americas (1)
- United States1 / 1
Core markets (1/1 apps)
Rivals
Who does Derk Vrijdag compete with?
The rivals identified
Nemeses(1)
Both apps compete for the attention of astronomy hobbyists by providing tools to identify and track celestial objects in the night sky.
Same space(1)
This app serves as a broader celestial reference tool for the same astronomy-focused audience that uses ISS Detector for specific satellite passes.
The Analyst's Read
The bottom line on Derk Vrijdag
Bottom line
Derk Vrijdag operates a successful single-product strategy that dominates its specific niche through technical reliability. The high user satisfaction reflects a strong product-market fit within the amateur astronomy and radio operator communities.
Frequently asked questions
How many apps does Derk Vrijdag publish?
What kind of apps does Derk Vrijdag make?
What is Derk Vrijdag's top app?
In how many countries are Derk Vrijdag's apps available?
What fed this analysis
- Apps analyzed:
- 1
- With full intel:
- 0
- With overview:
- 1
- Website scraped:
- yes
- Social presence:
- yes
