Support

We reply by email, usually within a few business days.

Email us at support@tenglow.app. Please include your phone model, OS version and app version.

Frequently asked questions

Do I need an account?

No. An account is optional and the app works fully without one. Sign in only if you want to back up your data and restore it on another device.

How do I sign in with a code?

In Settings, choose to sign in, enter your email address and request the code. We email you a 6-digit code (it expires after 10 minutes); enter it in the app. There is no password. If it does not arrive, check spam, wait a minute and request a new code (each new code replaces the old one). On iPhone/iPad you can also use Sign in with Apple.

How do I delete my account?

Go to Settings > Delete account and confirm. This removes your sign-in record and backed-up data from our servers (immediately in practice, within 30 days at most). Data stored on your device stays until you use "Delete my data and restart setup" or uninstall the app. Deleting your account does not cancel a subscription. If you cannot get into the app, email us from the address on the account.

How do I export my data?

Go to Settings > Export my data to save a copy of your answers, weights and workout history as a file.

Where is my data?

Your quiz answers, workout history and logged weights are stored on your device. If you do not sign in, we cannot see them or restore them, and they are removed if you delete the app or use "Delete my data and restart setup" in Settings. If you sign in, a backup copy is stored on our servers (hosted by Supabase) so it can sync to your other devices. See the Privacy Policy.

How do I restart my plan?

Use "Delete my data and restart setup" in Settings to clear your answers and history and answer the quiz again.

How do I cancel my subscription?

Subscriptions are managed by Apple or Google, not by us, so we cannot cancel them for you. Uninstalling the app does not cancel a subscription.

  • iPhone/iPad: Settings > your name > Subscriptions > Tenglow > Cancel Subscription.
  • Android: Google Play Store > profile icon > Payments & subscriptions > Subscriptions > Tenglow > Cancel subscription.

To avoid being charged, cancel at least 24 hours before the end of the current period (including the free trial).

How do I get a refund?

Refunds are handled by Apple (support.apple.com/billing) or Google Play (support.google.com/googleplay). We cannot issue refunds for store purchases directly.

My purchase is not recognized after reinstalling or switching phones.

Use "Restore purchases" in the app while signed in to the same Apple ID or Google account you purchased with. If it still does not work, email us.

Reminders are not showing.

Reminders are optional local notifications. Check that notifications are allowed for Tenglow in your phone settings and that reminders are turned on in the app.

How do I turn "Save workouts to Health" on or off?

Go to Settings > Save workouts to Health. When it is on, each finished workout (start and end time, duration, an estimated calorie number and a title) is written to Apple Health or Health Connect. Tenglow never reads your health data. To review or revoke the permission, open the Health app (iPhone) or Health Connect settings (Android).

How do I stop crash reports?

Go to Settings and turn off "Send crash reports". Reports contain only crash diagnostics (no email, name, workout or health data). See the Privacy Policy.

Which languages does Tenglow support?

English, Spanish and Hindi. By default the app follows your phone's language. To choose one yourself, go to Settings > Language. Translations are machine-assisted and reviewed by people, but if you spot a mistake, please email us.

How do I add the home screen widget?

iPhone/iPad: touch and hold an empty spot on the Home Screen, tap +, search for Tenglow and add the widget. Android: touch and hold an empty spot on the home screen, choose Widgets, find Tenglow and drag it onto the screen. The widget shows today's next workout, your streak, your week progress and your rest-day shield. It reads this from data stored on your phone; nothing is sent anywhere and it shows no health data. If it looks out of date, open Tenglow once to refresh it.

How does Invite a friend work?

Go to Settings > Invite a friend, or tap Share after finishing a workout. Your phone's share sheet opens with a message and a link like tenglow.app/get?ref=ABC123. The code is a random 6-character ID made on your phone; it is not linked to your name, account or device. The link page only sends your friend to the right store and stores nothing. There is no referral tracking and no reward at this time.

I left the paywall and saw a special yearly offer. What is it?

If you leave the subscription screen without subscribing, Tenglow may show a one-time offer for a discounted yearly plan. It is shown once per install. The screen states the price and that it renews at that same price each year until you cancel. You can cancel any time in your Apple ID or Google Play subscription settings (see below).

How do I change dark mode?

Tenglow follows your phone's light or dark setting. To override it, choose System, Light or Dark in Settings.

How does the streak shield work?

Each week you get one rest-day shield (it resets on Monday). It keeps your streak alive across one missed day automatically. Missing two days in a row, or a second missed day in the same week, ends the streak.

Is it safe for me to exercise?

Tenglow gives general fitness information only. Please read our health disclaimer and check with your doctor first, especially if you are pregnant or postpartum, injured, or have a health condition. Stop if you feel pain, dizziness or shortness of breath.

Privacy requests

For any privacy question or request (access, deletion, or about account or subscription data held by our processors), email support@tenglow.app.