privacy.
67 is built to know as little about you as possible. this page lists what the app and this website handle, and what they don't.last updated september 20, 2026.
- who we are.
67 is made by Justin LI, Taiwan. questions about any of this: justin@do67.app
- the camera.
67 uses the front camera to count reps of the 6-7 gesture. camera frames are processed on your phone, with apple's vision framework.
frames are not saved and not uploaded. no video, no photos. the only things that come out of the camera view are the rep count and whether the room is too dark, and they stay in the app.
- the apps you block.
67 blocks apps through apple's screen time api. the apps, categories and websites you pick are stored on your phone as tokens issued by apple.
67 can't read the names behind those tokens, and they are not sent anywhere. not to us, not to anyone.
- no account.
there is no account and no login. 67 never asks for your name, email or phone number.
- anonymous usage.
67 sends anonymous events so we can see what works and what doesn't. things like “a challenge was finished”, “the unlock was declined” or “the camera couldn't start”.
each event carries a random id made on your phone, the app version, your ios version, your phone model and your language. it never carries the names of the apps you block, anything from the camera, or an advertising id. we don't record your screen.
events are handled by posthog. your ip address is used to work out your country and is not stored.
you can turn this off in settings. 67 works the same without it.
- feedback.
if you send us feedback from the app, we receive what you wrote, plus the same app and ios version. if you add a way to reach you, we use it only to reply.
- 67+ purchases.
67+ is bought through apple's in-app purchase. apple handles the payment, and 67 never sees your payment details.
67 uses revenuecat to check whether a subscription is active. revenuecat receives a random app user id, apple's purchase receipt, and standard device information such as phone model, ios version, app version, language and country.
- notifications.
any notification from 67 is created on your phone. 67 has no push server and collects no push token.
- children.
67 is not directed to children under 13, and we don't knowingly collect personal information from them. if you believe a child has sent us personal information, write to justin@do67.app and we'll delete it.
- deleting your data.
deleting the app removes everything 67 stored on your phone. to have the anonymous ids held by posthog or revenuecat deleted, write to justin@do67.app.
- where it's processed.
posthog, revenuecat and vercel process data on servers outside your country, including in the united states.
- this website.
this website sets no advertising or tracking cookies.
our hosting provider, vercel, processes standard request data such as ip address and browser type, to serve the site and keep it secure.
- changes.
if this page changes, the date at the top changes with it.