WearCal

1. The short version

• WearCal is local-first. Your health data, band data, recordings, location history, calendar, notes and ledger are stored on your device (and in folders or cloud accounts you choose yourself), not on our servers.
• There are no ads, no advertising identifiers, no tracking across apps, and no third-party analytics in WearCal 2.0.
• We never sell your data and never use it to train AI models.
• Data only reaches our servers when you use an optional cloud feature (mostly for members). It is processed and then deleted, as described below.
• WearCal records and summarizes; it does not provide medical diagnosis.

2. Data that stays on your device

With your permission, WearCal reads or creates the following and keeps it on your phone:

• Health and fitness data: heart rate, HRV, sleep, SpO2, steps, workouts and similar data from Apple Health (HealthKit) and from bands, watches, rings, heart-rate straps and scales you connect over Bluetooth. Health data is never used for advertising or marketing and is never shared with data brokers.
• Recordings: audio you choose to record (holding the middle button, voice commands, or an all-day recording you start yourself on your band or phone), and transcripts made on the device.
• Location: places you visit and commutes, only if you turn location on. Used for your timeline and the automations you set.
• Calendar, photos and files: calendar events you choose to show or write, photos you pick for your timeline, and the notes folder (vault) you connect.
• Motion activity: whether you were walking, running, cycling or in a vehicle, to recognise activities.

You can export everything in open formats and delete it from the app at any time. Uninstalling the app removes the data stored in it.

3. Data sent to our servers, and why

Our servers run on Cloudflare. Each request is identified only by a random, anonymous purchase ID created by RevenueCat (see section 4) — WearCal 2.0 has no user accounts, names or email addresses.

• Cloud transcription and AI notes (members, and the one-time free comparison sample): only the audio segments that contain speech, plus the transcript and a few lines of context, are uploaded. Audio is stored encrypted for processing and deleted automatically within 24 hours; transcripts and summaries are returned to your phone and not kept on our servers.
• Link summaries (members): the link you saved is sent to our server, which reads the public web page and summarizes it. The page text and the summary are not stored.
• AI insights, receipt reading, plugin and command matching (members): the short text needed for the task — for example a sentence you said, a receipt image you chose, or a few daily figures compared with your own usual levels (such as hours slept) — is processed and not stored.
• Daily comic images (members): short scene captions with names replaced (“TA”) and no times, places or health figures.
• Weather (Android): approximate coordinates rounded to about 1 km and a time range, to fetch hourly weather from Apple WeatherKit. On iPhone, weather is requested by the device directly from Apple.
• Feedback: what you write in the in-app feedback form, with the app version and platform.
• Usage counters: how many hours of speech, link summaries, receipt pages and comic images were used this month, linked to the anonymous purchase ID, so that plan limits work.

4. Service providers

• Cloudflare (servers, temporary audio storage) — global network.
• Google Cloud Vertex AI (Gemini models for transcription, summaries, link summaries, insights and images) — processes requests on our behalf and does not use them to train models.
• Alibaba Cloud Model Studio (speech recognition for Chinese audio) — servers in mainland China; used only for cloud transcription.
• RevenueCat, Apple App Store and Google Play (purchases and subscriptions) — an anonymous app user ID and your purchase history. We never see your payment details.
• Apple WeatherKit (weather).

These providers may process data outside your country, including in the United States, Singapore and China. We use them only to provide the features you use.

5. Your own keys and your own storage

If you buy “Bring Your Own Key” and enter an API key for an AI provider you choose, requests go directly from your phone to that provider under their terms; we never see the key or the content. The key is stored in your device’s secure keychain. Likewise, backups or sync to iCloud Drive, a WebDAV server, S3-compatible storage or other storage you configure go directly from your device to that service.

6. Permissions

Bluetooth, Health, microphone, speech recognition, location, motion, calendar, photos, notifications and Face ID are each asked for only when you use the related feature, and can be turned off in system settings at any time. The microphone is only used while a recording you started is running.

7. Children

WearCal is not directed at children under 13 (or the minimum age in your country), and we do not knowingly collect their data.

8. Your rights

Under the Australian Privacy Act 1988 and laws such as the GDPR, you can ask what we hold about you, and ask us to correct or delete it. Our servers keep no names, emails or content — only anonymous monthly usage counters — so everything that identifies you lives on your device, where you can export or delete it in the app. For any other request, email support@akifukaku.com. You may also complain to the Office of the Australian Information Commissioner.

9. Changes

We will update this page and the date above when our data practices change, and tell you in the app for material changes.