Download-things-v3-v31602001-64bit-os121-ok14-user-hidden-bfi2-ipa -

Instructions on how to install IPA files manually using tools like AltStore or Sideloadly.

Are you trying to this specific version, or were you looking for a guide on how to set up your tasks and projects? Instructions on how to install IPA files manually

Guides on how to downgrade to a specific version of Things 3 if a newer update is buggy. Instructions on how to install IPA files manually