Floci is a free, open-source local AWS emulator for development, testing, and CI. It gives you AWS-shaped services on your machine without requiring a cloud account, an auth token, or paid feature ...
Whether you're looking at a route up a mountain or directions to a trailhead, a new app called TrailEyes has all that information, and it's free to use.
Birdfy has announced that automatic bird identification is now free for life across its range of smart birdwatching devices, including the new Birdfy Feeder Vista.