justnext
justnext is made by Tatenda Kandi, an individual developer in the United Kingdom (“we” on this page). This page says exactly what the app keeps, where it keeps it, and how to get rid of it.
The short version
To plan your workouts, justnext keeps:
This is kept on your iPhone. If you’re signed in to iCloud, it also syncs through your own private iCloud database, so it appears on your other devices signed in to the same Apple Account. Apple stores it under its own terms. It’s private to you, and we have no way to see or read it. If iCloud is off, everything stays on that phone only.
“Go easy on” areas and how a move felt are only ever used to plan your workouts. They never leave your phone except to your own iCloud, and they’re never part of the usage stats.
The watch app, the widget, the Live Activity and the watch complication show your next workout and where you are in it. Your iPhone shares this with them directly, on your own devices. Nothing goes to us.
If you turn on Buzz me when rest is over, the alert is scheduled on your phone. It doesn’t go through any server.
If you turn on Save workouts to Apple Health, each workout you finish is saved to the Health app: its type (strength, cardio or mobility) and its start and end times. justnext checks only the workouts it saved itself, so it never saves one twice. It doesn’t read anything else from Health.
Health data is never used for usage stats, advertising or anything else, and never leaves your devices through us. Workouts already saved stay in the Health app if you delete justnext’s data. You can remove them in the Health app, where you can also turn off justnext’s access.
justnext asks once, after your first workout, and you can change it any time in Settings under Extras. The switch is called Share usage stats and crash reports, and it’s off unless you turn it on. It covers both of the things below.
The app sends a short, fixed list of events to Google Analytics for Firebase. For example: “setup completed”, “workout started”, “swap used”, “rest day shown” or “a setting changed”. They come with simple details such as the kind of workout, its length rounded to the nearest five minutes, or which setting changed (never what you changed it to). The full list is built into the app and nothing else can be sent.
Google assigns a random ID to the app on your phone, so events from one phone can be counted together. Google uses your IP address to work out roughly which country you’re in, and Google Analytics doesn’t store IP addresses. The app uses the version of Firebase without Apple’s advertising identifier, and we don’t set a user ID.
If the app crashes or hits an error, Firebase Crashlytics sends a report: the app version, your phone model and iOS version, where in the app’s code it went wrong, and a random ID for crash reporting. Error reports name only the kind of error and where it happened. Reports made while the switch is off are deleted, never sent later.
Never sent
Your name, email, contacts or precise location. Health data. The weights, reps or times you log, how moves felt, areas to go easy on, or the moves you avoid. Your advertising ID. Anything you type.
To see which parts of justnext help people and which get in the way, and to fix crashes. The legal basis is your consent (UK GDPR Article 6(1)(a)), and PECR regulation 6 for storing and reading these IDs on your phone. You can withdraw consent at any time by turning the switch off. Collection stops straight away.
Google (Firebase) handles this data for us as our processor, under Google’s data processing terms. It may be processed outside the UK, including in the United States, with the safeguards those terms provide. Usage stats are kept for 2 months and then deleted. Crash reports are kept for 90 days. Neither is linked to you, and neither is used for advertising.
Our website, justnext.app, is hosted on Firebase Hosting. Like any website host, Google receives your IP address and browser details to deliver the pages. The site sets no cookies and has no analytics. Its pages load the Archivo font from Google Fonts.
In the app: Settings, Delete all my data. It removes every workout, setting and plan from your phone and from your iCloud, so from your other devices too. It also clears the widget, watch and Live Activity, cancels rest alerts, turns off usage stats and crash reports, deletes any crash reports not yet sent, and resets the usage stats ID. It can’t be undone. Workouts already saved to Apple Health stay there (see above).
If you delete the app without doing this first, the copy in your iCloud stays. To remove it, reinstall justnext and use Delete all my data. Or, on your iPhone, go to Settings, then your name, then iCloud, and manage your storage. If justnext is listed there, you can delete its data.
Because justnext has no accounts, we can’t look you up or see your workouts, so we can’t delete them for you. You’re always in control from the app. Usage stats and crash reports can’t be traced back to you, so we can’t pick out yours either. They’re deleted on the schedule above.
Under UK and EU data protection law you have the right to see what’s held about you, to correct it, to have it deleted, to object, and to withdraw consent. Almost everything justnext keeps is in your own hands, in the app. For anything else, email hello@justnext.app. You can also complain to the Information Commissioner’s Office, ico.org.uk.
justnext is for people aged 16 and over. You confirm this before you start.
justnext gives general exercise guidance, not medical advice. If you have a medical condition or injury, or are pregnant, check with a health professional before starting. Stop if you feel sharp pain.
If this policy changes in a way that matters, the date at the top changes and the change is noted in the app’s release notes.
Tatenda Kandi, justnext · hello@justnext.app