Tideline is a calm weight trend tracker for iPhone. It smooths out daily scale noise so you can see where your weight is really heading.
Need help? Email [email protected], or open Tideline and tap Settings ▸ Contact us. Please include your iPhone model and iOS version. Never send your Apple Account password or payment details.
What do I get with Tideline Pro? Every feature in the app. Choose the yearly plan, which starts with a 7-day free trial for new subscribers, or a one-time lifetime purchase.
How do I cancel? On your iPhone, open Settings ▸ [your name] ▸ Subscriptions ▸ Tideline and tap Cancel Subscription. You can also get there from Tideline ▸ Settings ▸ Tideline Pro ▸ Manage subscription. Cancel at least 24 hours before the renewal date to avoid the next charge. If you cancel during the free trial, you won't be charged.
I reinstalled the app or got a new iPhone. How do I get Pro back? Tap Restore purchase on the welcome screen, on the paywall, or in Settings ▸ Tideline Pro. Make sure you're signed in with the same Apple Account you used to buy.
I bought lifetime but I'm still subscribed. Buying lifetime doesn't cancel the yearly subscription. Cancel it yourself as described above so you aren't charged for both.
How do I get a refund? Purchases are handled by Apple. Request a refund at reportaproblem.apple.com.
It says there's a problem with my payment. Apple couldn't renew your subscription. Update your payment method in Settings ▸ [your name] ▸ Payment & Shipping. Tideline unlocks by itself once Apple collects the payment.
Where is my data stored? On your iPhone and in your own iCloud account. There is no Tideline account, and your weight is never sent to us.
My data isn't showing on my other iPhone or iPad. Check that both devices are signed in to the same Apple Account and that iCloud is on for Tideline (Settings ▸ [your name] ▸ iCloud). Open Tideline on both devices and give it a few minutes on Wi-Fi.
How do I export or back up my data? Go to Settings ▸ Backup and export. Export CSV gives you a spreadsheet of your weigh-ins. Backup saves a file with every weigh-in, note and setting, which you can restore later from the same screen. Progress photos aren't included in the backup; they stay on your iPhone and in iCloud.
How do I delete all my data? Go to Settings ▸ Delete all data, at the bottom of Settings. This removes your data from your iPhone and from iCloud. Apple Health keeps its own copy of any weights it holds; delete those in the Health app if you want them gone too.
How do I connect my smart scale? If your scale's app writes to Apple Health, Tideline reads those weigh-ins automatically, including your past history the first time you connect. Connect by tapping Apple Health at the top of Settings.
Weigh-ins from Apple Health aren't appearing. Open the Health app, tap your profile picture, then Apps ▸ Tideline, and make sure Weight (and Body Fat Percentage and Lean Body Mass, if you use them) are allowed. Then open Tideline again.