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Received β€” 9 October 2025 ⏭ MacRumors: Mac News and Rumors - All Stories

Apple Watch's High Blood Pressure Notifications Available in Canada and Singapore Starting Today

Apple today announced that its Hypertension Notifications feature on select Apple Watch models is available in Canada, Singapore, and Bahrain starting today.


The feature is available on Apple Watch Series 9, Series 10, Series 11, Ultra 2, and Ultra 3 models running watchOS 26. It is not available on any Apple Watch SE models. Users can set up the feature in the Health app on a paired iPhone.Hypertension Notifications first launched in the U.S. and more than 150 other countries and territories last month.

The feature can alert users if signs of chronic hypertension (high blood pressure) are detected, according to Apple. Based on data from the Apple Watch's optical heart sensor, the feature can analyze how a user's blood vessels respond to the beats of the heart. The algorithm works passively in the background, reviewing data over 30-day periods, and users are notified if consistent signs of hypertension are detected.

Apple says the feature does not require calibration, does not measure blood pressure directly, and does not surface a blood pressure reading to users.

Apple said the feature underwent "rigorous scientific validation," as outlined in a 12-page document. According to the company, it was developed with advanced machine learning and training data from multiple studies totaling more than 100,000 participants, and its performance was then validated in a clinical study of more than 2,000 participants.

Apple says the feature is "not intended for use by people under 22 years old, those who have been previously diagnosed with hypertension, or during pregnancy."
Related Forum: Apple Watch

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AltStore Plans to Launch iPhone App in Three More Countries This Year

AltStore today announced plans to make its iPhone app available in Australia, Brazil, and Japan later this year, followed by the UK next year.


AltStore is also gaining "Fediverse" support, via the ActivityPub protocol.

AltStore provides iPhone users with an alternative to Apple's built-in App Store, and it even offers some apps that would violate Apple's App Review Guidelines.

AltStore first launched on the iPhone in the EU last year, after the Digital Markets Act required Apple to allow alternative app stores. Australia, Brazil, Japan, and the UK are working to implement similar regulations, which would pave the way for AltStore to launch in those countries as well. However, the exact timing could shift.

Alternative app stores have been supported on the iPhone and iPad in the EU since iOS 17.4 and iPadOS 17.4 were released in April 2024. AltStore and other alternative app stores can be installed on these devices via Safari or another web browser.

Apple has yet to announce or implement support for alternative app stores in Australia, Brazil, Japan, and the UK, as regulations in those countries are still being finalized and/or have yet to be enforced. AltStore has simply announced its plans early.

In the U.S., the Department of Justice filed an antitrust lawsuit against Apple last year, but the case is ongoing and alternative app stores on the iPhone remain unsupported there.
This article, "AltStore Plans to Launch iPhone App in Three More Countries This Year" first appeared on MacRumors.com

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