I can't log in/sign up – I get the error "Invalid API request: invalid client". What do I do?
To fix the issue, try accessing Splitwise from a different network or a different device. Also, please make sure that the copy of Splitwise that you are using was downloaded directly from the Apple App Store or from Google Play. Copies of the Splitwise app that are downloaded from other sources may have been tampered with, which may cause this security error.