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Paweł Sańczykleft a comment
it's very nice that the product is developing and getting better.

GraphQL Editor 5.0Building a GraphQL API just got a lot easier
Unusually to other apps, the measurement process is based on the sound. Specifically, the distance traveled by a sound way from point A (phone speaker) to point B (earphones). The algorithm behind the app is fueled by advanced math! It's pure science!

Audio RulerThe new way of measuring distances with your iPhone

