Support
Questions or problems? Email support@tandemtasks.app.
Common questions
Do I need an API key?
To chat with Juniper using Claude or Gemini, yes: your own key from Anthropic (console.anthropic.com) or Google AI Studio (aistudio.google.com), entered in Settings → AI. You pay them directly for what you use. Lists, tasks and reminders work without a key.
Is there a free option?
Yes. The on-device AI runs entirely on your device, with no key and no cost. It's a 3.7 GB download in Settings → AI, and it's slower and less capable than Claude or Gemini.
What happens to my data?
Your lists, chats and settings are stored on your devices. When you use Claude or Gemini, what Juniper needs goes to that company with your own key. If you turn on sync, your lists, tasks and memories are stored in Tandem's cloud. The privacy policy has the details.
Do I have to sign in?
No. Signing in with Google is only for syncing between your phone and PC; Tandem works fully without it.
How do I delete my account?
In Tandem, go to Settings → Account & sync → Delete my account. If you no longer have the app, see Delete your account.
Which devices does it run on?
Android phones with Android 16 or newer (it's built with foldables in mind), and Windows 11 PCs (64-bit).
How does the Windows app update?
Tandem checks for a new version when it starts and once a day, and shows a notification when there is one. Open Settings → About and choose Update: Tandem downloads it, then closes, installs it and opens again. Your data stays.