Showing 41–60 of 1,000 ranked alternatives.
NORMAND MARTIN
View art, explore galleries, techniques
Explore art history with 140 paintings by renowned artists. View immersive slide shows and click images to identify artists. Browse a database to access detailed information about artworks and artists. Take quizzes to test and enhance art knowledge.
Sichtwerk AG
Measure altitude with GPS and barometer
Calculate altitude using GPS, ASTER, or barometer (iPhone 6 and later). Display average altitude from GPS and ASTER data. Show peaks, compass, and distance grid on an integrated map. Support Apple Watch. Choose unit of measurement.
AppSLabs OU
Identify rocks from photos or gallery
Identify rocks, stones, gems, and crystals by taking a photo or selecting from the gallery. Get instant results with detailed information about each item. Suitable for both professionals and amateurs.
ARRL, American Radio Relay League, Inc.
Receive monthly QST journal issues
Access monthly digital issues of QST, the membership journal. Read news, construction guides, tutorials, and other content. Subscribe for updates. View articles and special features not available in print.
Patrick J Maloney LLC
Upgrade your HAM license with questions
Review and practice questions from the Amateur Radio License exam pool. Access the Question Pool effective July 1, 2024. Track progress and prepare for exams. Upgrade from General to Amateur license. Sync study sessions across devices.
Makena Ventures LLC
Send messages via amateur radio network
Compose and reply to email messages via amateur radio networks. Send and receive messages through telnet or the Amateur Radio Emergency Data Network. Pair with VARA or KISS TNC modems via WiFi or Bluetooth.
Marcus Roskosch
Monitor real-time amateur radio activity
Access real-time data for amateur radio frequencies. Filter by frequency, mode, call prefix, country, or ITU zone. View contacts and activity on a map. Receive alerts for new contacts. Share data via email or social media.
Nicolas Associates Ltd
Search sumits by locator and location
Access a complete database of summits worldwide. View locator, WAB, OS Grid reference, and coordinates. Search by town, state, summit name, or number. Sort and filter results. Display distance, heading, and summit details.
Internet Stuff Ltd
Plan and visualize a shot frame
Plan and visualize shots from approach to target with overlays like entry angle and distance markers. Save favorite shots and use video mode for analysis.
Matthew Bognar
Calculate probabilities, plot distributions, and find percentiles
Calculate probabilities and percentiles for normal, t, chi-square, F, exponential, gamma, beta, log-normal, Pareto, and Weibull distributions. Plot density functions for these distributions.
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