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Support

Questions and requests about Hadalog are welcome here.

Contact

Email: freetokyo2020@yahoo.co.jp

Hadalog is built by one person, so a reply may take a little time. For bug reports, please include your iOS version and the steps you took.

Frequently asked questions

Do I have to allow location access?

No. Open the Today tab and choose Select a region to pick a city instead; the index is then calculated from that region’s weather.

Do I have to allow Health access?

No. The index works from weather alone. Allowing sleep, steps, water and cycle data simply makes the contributing factors more specific.

What does the index mean?

A number from 0 to 100 showing how much the day’s conditions — humidity, temperature, UV, wind, sleep, steps, water and so on — overlap. It is not a probability that you will have a skin problem.

How long before my records show up in the analysis?

Trends by condition appear once each condition has enough days behind it (at least five). Until you have 30 days of records, the app labels this a learning period.

I purchased Full Access but the features are still locked

Try Restore Purchases in Settings or on the Full Access screen. If that does not help, please email us.

Can I move my data to another device?

Not in this version — the app is designed to keep your data on your device only. You can export your records as PDF or CSV.

About the Android version

The Android version supports Android 9.0 and later. It is being prepared for Google Play and cannot be downloaded yet.

To move to a new phone, export a backup from inside the app and import it on the new device. Cloud backup and device-to-device transfer are both disabled in the Android version, so nothing carries over automatically.

For questions, use the contact address below. Telling us whether you are on the iOS or the Android version gets you a faster answer.