Bjorn Jenssen
For health-conscious outdoor enthusiasts monitoring sun exposure and astronomy hobbyists or photographers tracking lunar cycles.
UV Index Widget - Worldwide
Snapshot
Who is Bjorn Jenssen?
Providing specialized weather and astronomical data through high-fidelity widgets and system integrations for health-conscious and outdoor users.
Target audience
Portfolio
Free 6Last updated
UV Index Widget - Worldwide
v13.0.3
6mo ago
Publisher DNA
What defines Bjorn Jenssen?
Publisher DNA
Primary focus
Specialized weather widgets and astronomical tracking
Scale
indie
Target audience
Health-conscious outdoor enthusiasts monitoring sun exposure and astronomy hobbyists or photographers tracking lunar cycles.
Signature Patterns
- •Heavy emphasis on iOS-native features including Home Screen widgets and Apple Watch support.
- •Focus on niche environmental data (UV, lunar) rather than general-purpose weather forecasting.
- •Utilization of high-fidelity visual design languages to differentiate utility tools.
- •Consistent release cadence focused on frequent technical updates and maintenance.
Portfolio momentum
Maintained an intense development pace with 11 updates across 2 apps in the last 6 months, with the most recent major release occurring 8 days ago.
Portfolio
What does Bjorn Jenssen ship?
Apps
6 apps analysed
Analysis in progress
- On-device AI processing removes the connectivity dependency rivals require for document summarization
Analysis in progress
Distributed across 6 markets, strongest in Americas.
Based on 3 of 6 apps with localized market data, more coverage rolling in as scans complete · last scanned .
Americas (2)
- United States3 / 3
- Mexico1 / 3
Europe (3)
- France1 / 3
- Germany1 / 3
- Spain1 / 3
Asia-Pacific (1)
- Japan1 / 3
Core markets (3/3 apps)
Rivals
Who does Bjorn Jenssen compete with?
The rivals identified
Nemeses(2)
Both apps compete for home screen real estate among outdoor enthusiasts who rely on real-time environmental data for travel planning and health monitoring.
Both apps target astronomy enthusiasts and casual users by providing free, 3D-simulated lunar tracking and widget support on mobile devices.
Contenders(9)
Both apps target astronomy enthusiasts with lunar tracking and widget support, competing for the same user base on iOS devices.
Both apps target outdoor activity planning, with UV Index Widget focusing on sun exposure and Live Weather providing general meteorological data for scheduling.
It uses lunar cycle data to provide specialized activity forecasting for hunters, overlapping with the core astronomical data set.
Both apps target astronomy enthusiasts and stargazers, competing directly for home-screen engagement through widget-based lunar tracking.
Both apps target astronomy enthusiasts with free lunar tracking tools, creating direct competition for users seeking celestial event notifications and calendar integration.
Both apps target users interested in lunar cycles, with Lunar focusing on astronomical utility and MoonX on astrological integration.
Both apps target astronomy enthusiasts with free, real-time lunar tracking, creating direct competition for users seeking daily celestial updates.
Both applications target astronomy enthusiasts and photographers with free, widget-supported lunar tracking tools on mobile platforms.
Both apps target users tracking lunar cycles and astronomical positioning, competing for the same utility-focused audience on mobile platforms.
Same space(35)
This app provides similar health-related indices like UV and humidity for the same outdoor-active audience.
This app targets the same outdoor-active audience as the source, providing localized weather data through persistent widgets and notifications.
It provides similar astronomical event tracking for outdoor activities, emphasizing offline data reliability.
It overlaps with the lunar-tracking audience by integrating moon cycles into a broader menstrual health-tracking experience.
It shares the same weather-utility category, focusing on sun-related data to manage personal health and safety.
It captures the astrology-interested segment of the lunar-tracking audience by mapping cycles to personal guidance.
It serves the same astrology and health-tracking audience by linking lunar cycles to personal patterns.
This app competes for the same outdoor-planning audience by focusing on real-time rain and storm tracking rather than UV-specific health monitoring.
It competes for the astrology-interested user base by mapping lunar phases to personality and emotional influence.
It targets the wellness-focused segment of the lunar audience by integrating meditation with cycle tracking.
This app functions as a general-purpose weather assistant for the same outdoor-active user base, providing similar health-related indices like UV and air quality.
This app serves the same astrology-focused niche by combining lunar tracking with daily personal rituals.
This app provides similar UV index and humidity data for the same outdoor-active audience, focusing on travel and commute planning.
This app serves the same outdoor-active audience by providing a comprehensive suite of weather data, including UV index, in a single interface.
It competes as a minimalist widget utility for users who want simple, real-time lunar phase information.
This app competes for the same home screen real estate on iOS, using widget customization to drive daily habit formation.
It provides a direct alternative for lunar cycle tracking, offering similar astronomical data points in a calendar format.
This app provides similar weather alerts for the same user base, focusing on disaster countermeasures and severe weather notifications.
It offers a similar set of astronomical tracking tools for photographers and sky-watchers.
It competes as a widget-first utility, offering aesthetic customization for users who prioritize home screen design.
It provides similar astronomical time tracking, serving the same broad audience of outdoor professionals and travelers.
This app serves the same outdoor-planning audience as the source, focusing on granular hourly data for daily activity scheduling.
It targets the same power-user segment by offering high-density visual data and offline caching for outdoor activities.
This app serves the same general weather-monitoring audience as the source, focusing on clean, intuitive data presentation for outdoor planning.
This app provides a broader weather utility for the same user base, offering extended 45-day forecasts and minute-by-minute rainfall tracking.
This app addresses the same outdoor planning needs as the source but adds an AI-driven planner to provide specific weather-based recommendations.
This app provides similar health-related metrics like UV index and pollen count for the same outdoor-active user base.
This app targets the same outdoor-planning audience by offering minute-by-minute precipitation tracking alongside long-range 45-day outlooks.
This app targets the same outdoor-active audience by providing hyper-local data from a massive network of personal weather stations.
This app targets the same weather-conscious demographic but relies on an ad-free, donation-based model to build trust, contrasting with the source's subscription-based approach.
This app targets the same outdoor-planning audience by providing specific health-related weather data like sunscreen requirements.
This app serves the same outdoor-focused audience as the source, but captures daily sessions via an interactive radar map rather than UV-specific health tracking.
It serves the same outdoor-utility niche by providing offline-first tide and lunar data for specific regions.
This app provides a similar suite of health-related weather data, including UV index and sunrise/sunset times, for the same outdoor-active audience.
It targets the same photography and astronomy audience with augmented reality tools for tracking lunar paths.
New entrants(1)
It targets the same astronomy-enthusiast audience by combining precise data with a focus on visual design.
The Analyst's Read
The bottom line on Bjorn Jenssen
Bottom line
Bjorn Jenssen is a disciplined indie developer leveraging specialized data and premium aesthetics to maintain a strong presence in niche weather segments. The high weighted rating across the portfolio indicates a successful focus on utility-driven widgets that encourage long-term system-level integration.
Frequently asked questions
How many apps does Bjorn Jenssen publish?
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In how many countries are Bjorn Jenssen's apps available?
What fed this analysis
- Apps analyzed:
- 2
- With full intel:
- 0
- With overview:
- 2
- Website scraped:
- yes
- Social presence:
- no
