Effective date: 24 October 2026
Last updated: 24 October 2026
Just'a Tabata is an interval-training timer for iPhone, iPad and Apple Watch, published by Vinh Nguyen (VinhDEV) ("we", "us" or "our"). This Privacy Policy explains what information the app handles, where that information is kept, and which third parties receive information when you use the app. It also covers the app's widgets and Live Activities.
Just'a Tabata has no user accounts and no sign-in. We do not operate our own servers for the app. We do not receive copies of your workouts, your training history, your health data or anything else you create in the app.
The free version of the app shows advertising provided by Google AdMob. Google receives certain device and usage information to deliver those ads, as described in Section 6.
This policy applies only to the Just'a Tabata app. It does not apply to the App Store, iCloud, Apple Health, Google's services or any other third-party service, each of which has its own privacy policy.
Just'a Tabata does not ask for your email address, phone number, contacts, location, photos, camera or microphone.
The app handles the following information so that it can work:
Workouts you create or edit, such as their names, intervals and number of rounds.
Your training history. Each finished session records when it took place, which workout you did and how long it lasted.
Your preferences, such as sounds, voice cues, colours and app icon.
A first name or nickname, only if you choose to enter one in Settings. It is optional and is used only to personalize the app.
Whether you have purchased Just'a Tabata Pro. The app checks this with Apple's StoreKit service and keeps a record of the answer on your device.
Voice cues during a workout are produced by Apple's built-in speech system on your device. The app does not record audio.
Apple Health access is optional. The app asks for permission the first time it is needed, and you can choose what to allow.
On iPhone, if you allow it, the app saves each finished workout to Apple Health as a workout entry, so it counts toward your Activity rings. If you delete a session in the app, the app tries to remove the matching workout it saved to Apple Health.
On Apple Watch, if you allow it, the app records your workout in Apple Health. During a workout it also reads your heart rate and active energy from Apple Health. Your heart rate is shown on the watch while the workout runs. The app does not keep a separate copy of these readings.
Information from Apple Health is never used for advertising or marketing, is never shared with Google or any other third party, and is never stored in iCloud by the app. Workouts saved to Apple Health are stored by Apple Health under Apple's privacy terms. You can review or change Health permissions at any time in the Health app or in your device's Settings.
The information listed in Section 2 is stored on your device. The app shares workout details with its widgets and Live Activities through storage that only Just'a Tabata can use on your device. If you use the Apple Watch app, workouts and settings pass directly between your iPhone and your Apple Watch through Apple's WatchConnectivity framework.
If you are signed in to iCloud and iCloud is enabled for Just'a Tabata on your device, the app also keeps a copy of your workouts and training history in your own private iCloud database, and your preferences in iCloud key-value storage. This lets your data follow you to your other Apple devices and to a new device. The sync happens automatically while iCloud is available for the app.
This iCloud data is stored by Apple in your personal iCloud account under Apple's terms and privacy policy. As the developer, we cannot see or access the contents of your private iCloud database.
If you do not want this information stored in iCloud, you can turn off iCloud for Just'a Tabata in your device's Settings app. The app then keeps your data on the device only.
The information described in Sections 2 to 4 is used only to provide the app's features. This includes running timers, showing your progress, saving workouts to Apple Health when you allow it, remembering your settings and unlocking Pro features after a purchase.
We do not use this information for advertising, and we do not sell it. The information described in Section 6, which Google handles, is used for advertising.
The free version of Just'a Tabata shows ads through Google AdMob, an advertising service of Google LLC and its affiliates ("Google"). The app includes the Google Mobile Ads SDK and Google's User Messaging Platform (UMP) SDK.
The app shows the following kinds of ads:
Banner and native ads on some screens, including a banner on the timer screen when there is room for it.
Full-screen interstitial ads at some natural breaks, such as after a finished workout.
Optional rewarded video ads. You can choose to watch one in exchange for temporary access to Pro features. These ads play only when you tap to watch.
When the app requests or displays an ad, the Google Mobile Ads SDK sends information from your device to Google. According to Google's published disclosures for the SDK, this can include:
Your IP address, which can be used to estimate your general location.
Device identifiers, such as the advertising identifier (IDFA) if you allow tracking, and app- or developer-scoped identifiers.
Advertising data, such as the ads you have seen.
Product interaction data, such as app launches, taps and video views.
Diagnostic data, such as crash logs and performance data.
Google uses this information to deliver, measure and improve ads, to limit how often an ad is shown, to prevent fraud and abuse, and for analytics. Where you have given permission, Google may also use it to show personalized ads.
We do not send your workouts, training history, Apple Health data, preferences or name to Google or to any other advertiser.
Before any ad is requested, the app checks your consent status through Google's UMP SDK. If you are in a region where consent is required, such as the European Economic Area, the United Kingdom or Switzerland, the app presents Google's consent message and does not request ads until the consent requirements are met. Where a privacy options entry is available, you can change your choices later in the app's Settings.
The app may also ask for permission to track you through Apple's App Tracking Transparency prompt. If you refused personalized advertising in Google's consent message, the app does not show the tracking prompt. If you do not allow tracking, the app cannot access your device's advertising identifier. Google may still use other information, such as your IP address, to serve and measure non-personalized ads and to prevent fraud. You can change this at any time in Settings > Privacy & Security > Tracking on your device.
Google Privacy Policy: https://policies.google.com/privacy
How Google uses information from sites or apps that use its services: https://policies.google.com/technologies/partner-sites
How Google uses information in advertising: https://policies.google.com/technologies/ads
Just'a Tabata does not include any analytics, crash reporting, attribution or social media SDKs other than the Google SDKs described above. The app also uses Apple services built into iOS and watchOS, such as iCloud, StoreKit, HealthKit, widgets and WatchConnectivity. Apple handles that information under its own privacy policy: https://www.apple.com/legal/privacy/
Just'a Tabata offers Just'a Tabata Pro, a one-time purchase that unlocks extra features and removes ads. There is no subscription.
Purchases are processed by Apple through the App Store. We do not receive or store your payment card details, billing address or Apple Account password. The app receives only the information it needs from Apple to confirm that you own Pro.
When you have Pro, the app stops requesting ads and deletes the advertising consent information that Google's UMP SDK had stored on your device.
Workout timers work without an internet connection. The app uses the internet for three things:
Loading ads and handling ad consent, through Google's SDKs, in the free version.
Syncing your data with your private iCloud account, if iCloud is enabled.
Checking and restoring purchases with the App Store.
The app does not connect to any server operated by us.
We do not collect your personal information on our own systems, so we have none to sell, rent or share.
Information leaves your device only in these cases:
Google receives the advertising-related information described in Section 6 when you use the free version.
Apple stores your synced data in your private iCloud account, if iCloud is enabled, stores workouts you allow the app to save in Apple Health, and processes your App Store purchases.
Under some US state privacy laws, allowing an advertising partner to collect information for targeted advertising can be treated as "selling" or "sharing" personal information. To the extent those laws apply, Google's collection described in Section 6 may fall within those terms. You can limit it as described in Section 12.
Your app data stays on your device, and in your iCloud account if sync is enabled, until you delete it.
You can delete your data in these ways:
Delete a workout you created in the app.
Pro users can delete an individual session from the training history. The app also tries to remove the matching workout it saved to Apple Health.
In Settings, choose Reset all data. This deletes your workouts, training history and preferences in the app. If iCloud sync is enabled, the deletion also syncs to your iCloud data and your other devices. Your Pro purchase is not affected. Workouts already saved to Apple Health are not removed by this option.
You can delete workouts saved in Apple Health, and revoke the app's Health access, in the Health app.
Deleting the app removes the data stored on that device. It does not remove data already stored in your iCloud account or in Apple Health.
You can manage or delete the app's iCloud data in your device's Settings, under your Apple Account, then iCloud, then Manage Storage.
Google retains the information it collects through its SDKs according to its own policies. We cannot delete information held by Google. You can manage your Google advertising settings at https://myadcenter.google.com and learn about Google's retention practices at https://policies.google.com/technologies/retention
Your app data is protected by the security features of your devices and, if you use sync, of Apple's iCloud service. Health data is protected by Apple Health. Because we do not run servers for this app, your data is not stored on any system we control.
No method of storage or transmission is completely secure. Please protect your devices with a passcode and keep your Apple Account secure.
You have the following choices in the app and on your device:
Leave the optional name field empty.
Allow or deny Apple Health access, and change it later in the Health app or your device's Settings.
Turn off iCloud sync for Just'a Tabata in your device's Settings.
Refuse or change advertising consent through Google's consent message, where it is offered, and through the privacy options in the app's Settings, where available.
Allow or deny tracking through Apple's App Tracking Transparency, and change this later in Settings > Privacy & Security > Tracking.
Delete your data in the app, as described in Section 10.
Purchase Pro to stop ads entirely.
Depending on where you live, privacy laws may give you rights over your personal data. These can include the right to access, correct or delete it, to restrict or object to its processing, to data portability, to withdraw consent, and to complain to a data protection authority. This includes residents of the European Economic Area, the United Kingdom, certain US states and Vietnam.
Where the GDPR or a similar law applies, advertising cookies and identifiers are used on the basis of your consent where consent is required. Health data is accessed only with your permission given through Apple Health. Your app data is processed only on your devices and in your iCloud account to provide the features you use.
Because we do not hold your app data, you can view, change or delete it directly in the app, in Apple Health and in iCloud. For information Google collects, you can use Google's tools or contact Google. You may also contact us using the details in Section 16 with any privacy question or request, and we will respond within the time required by applicable law.
Just'a Tabata is a general-audience app. It is not directed to children, and we do not knowingly collect personal information from children under 13, or under the minimum age set by the law where they live.
The app does not collect personal information on our own systems. However, the advertising described in Section 6 is not designed for children. If you are a parent or guardian and believe your child has provided personal information through the app, please contact us. You can also use the deletion options in Section 10.
Information collected by Google through its SDKs may be processed in the United States and other countries where Google or its service providers operate. Data stored in iCloud may be processed in countries where Apple operates. These countries may have data protection laws that differ from those of your country. Google and Apple describe the safeguards they use for international transfers in their privacy policies.
We may update this Privacy Policy when the app or the law changes. When we do, we will update the "Last updated" date at the top of this page. If a change significantly affects how your information is handled, we will provide notice in the app or on the App Store listing before the change takes effect.
If you have any questions or requests about this Privacy Policy or your information, please contact:
Vinh Nguyen, developer of Just'a Tabata
Email: vinhnguyen30062002@gmail.com