Clear Sky Calculator is a technical utility for researchers and agricultural scientists to estimate solar radiation and validate sensor accuracy on iOS.
The App DNA
What makes this app unique?
The tool removes the need for expensive secondary reference equipment by providing a modeled clear sky baseline for sensor recalibration.
For Researchers, agricultural scientists, and technicians who manage and maintain solar radiation and quantum sensor networks.
What does it look like?
Key features
Calculates incident solar radiation intensity on horizontal surfaces using site-specific elevation, latitude, and longitude data.
Compares real-time sensor readings against modeled clear sky values to determine if sensors require recalibration.
How much does it cost?
The utility is provided as a free service to support the manufacturer's hardware ecosystem and service pipeline.
Velocity
Dormant developmentopaqueShow more...
Clear Sky Calculator has reached a state of total inactivity, with no updates or feature releases in the last 1,789 days. The development trend is stagnant, as the app has not received any maintenance or content updates for nearly five years. Given the lack of recent activity, the project appears to be abandoned by its publisher.
Who built it?
Apogee Instruments
3 apps tracked · Business
Clear Sky Calculator
Field of View CalculatorUser Sentiment
What do users think recently?
Review voice lately leans thrilled. Users appreciate versatile measurement tools allow users to evaluate small solar charging systems beyond standard instrument calibration.
How are ratings & reviews evolving?
What users say, by theme
- Versatile measurement tools allow users to evaluate small solar charging systems beyond standard instrument calibration
1 of 1 recent reviews analyzed · limited sample
Read the full review analysisCompetition
Competitive landscape for Clear Sky Calculator
How's the Business market?
Clear Sky Calculator serves a specialized B2B-adjacent audience within the Business category, maintaining a 5.0-star rating across its limited user base. The lack of updates since 2021 positions the tool as a static reference utility rather than a competitive market entrant.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Clear Sky Calculator
Where is it heading?
The market for specialized scientific reference tools remains stable, with Clear Sky Calculator providing sufficient value as a static utility. Continued maintenance ensures the tool remains available for researchers, though no further growth is expected without a platform refresh.
- The 58-month development freeze indicates the tool has reached functional maturity, serving its purpose as a static hardware support utility.
The SWOT
- Physics-based modeling provides a verifiable accuracy baseline for sensor recalibration.
- Integration with ASCE Standardized Reference Evapotranspiration equations ensures technical alignment with industry-standard research workflows.
- Expanding the tool to support automated sensor-drift alerts could increase the frequency of user engagement.
Next best moves
Maintain current codebase because the utility serves as a stable hardware support asset → preserve ecosystem value
The counter-intuitive read
The lack of updates is a feature, not a bug…
Read the full takeSince the last report: The application remains in a static maintenance state with no functional changes. The intelligence update reflects a more granular definition of the app's scientific methodology and its competitive vulnerability to modern cloud-integrated platforms.
Bottom line
Clear Sky Calculator functions as a stable reference utility for sensor validation, but the lack of updates since 2021 confirms it is a legacy support asset. Maintaining the current codebase ensures hardware ecosystem support without requiring further capital allocation.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Clear Sky Calculator accurate for professional research?
Does this app require an internet connection?
What is the primary purpose of this calculator?
Sources
Report last updated