1. Install the build
The beta is distributed through Apple TestFlight. You'll need an iPhone running iOS 16 or later.
Install TestFlight
If you don't already have it, install Apple's free TestFlight app from the App Store.
Get TestFlight →Join the beta
Open this link on your iPhone, tap "Accept," then "Install." The build auto-updates whenever we ship a new version.
https://testflight.apple.com/join/7AGjNFTP
Join the beta →2. Test card
The App is in Stripe test mode during the beta. Use the test card below — do not enter a real credit card. No real money moves.
Card number: 4242 4242 4242 4242
Use any future expiration date (e.g. 12/30), any 3-digit CVC (e.g. 123), and any 5-digit ZIP (e.g. 10001).
3. What we'd love to hear
Anything goes — these are just prompts to get you thinking. The smallest "huh, that was weird" is genuinely useful.
Features you wish existed
"I wish I could…" — anything from new score breakdowns, sharing with friends, streak rewards, integrations, a watch complication, dark themes, whatever. We want to hear it.
Anything that confused you
A number you didn't understand, a screen you weren't sure what to do on, a word that didn't make sense. Confusion is almost always our fault, not yours.
Things that felt slow, broken, or off
Crashes, blank screens, slow loads, something that looked wrong, a button that didn't behave like its label. "It feels off" is a valid report — we'll dig in.
What you actually liked
If something delighted you or felt great, tell us — we want to keep doing that. This is just as useful as bug reports.
4. Send feedback
One sentence is fine. A long essay is also fine. Whatever's easiest for you.
Email hz489@cornell.edu
For bug reports, a screenshot and a quick note about your iPhone model usually gives us enough to investigate. Otherwise, just tell us what's on your mind.
Tip: the easiest way to file a bug is TestFlight's built-in feedback — take a screenshot in the App, tap "Share Beta Feedback" on the preview, and it sends the screenshot + your device info + a note in one go.
Compose email →5. A few reminders
Your data may be reset between builds
Until we go live, treat everything in the App as throwaway. Your real cycle starts when we launch publicly.
Please don't share the TestFlight link publicly
The beta is invite-only. If a friend wants in, send them this page rather than reposting the link on social.