No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- MLJAR Studio
Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.
Since 2017
Data and spreadsheets
- Open-Meteo
Weather forecast and historical climate data over a simple JSON API, free for non-commercial projects.
Since 2021
Free plan · Developer tools · Developers
- Quadratic
Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.
Since 2023
Data and spreadsheets
- WeatherXu
A REST API that gives current, forecast and historical weather for any location, plus severe weather alerts.
Free plan · Developer tools · Developers
- Meteosource
An API that serves current, forecast and historical weather for any location, for apps and weather-sensitive firms.
Since 2023
Free plan · Data and spreadsheets · Developers
- Runcell
An AI agent inside Jupyter that writes and runs Python cells, reads the results and fixes errors during data analysis.
Since 2025
Free plan · Developer tools · Developers
- GS-Calc
Windows spreadsheet that opens huge files with millions of rows and adds pivot tables and statistics tools.
Since 2023
One-off payment · Data and spreadsheets
- GribStream
An API that returns live and archived weather forecasts and actuals for chosen points, for apps that need weather data.
Since 2024
Free plan · Developer tools · Developers