# Hadalog(ハダログ) > 天気と生活習慣の重なりから「明日の肌」を見通す iOS / watchOS アプリ。突っ張り・ベタつき・ゆらぎの 3 問を 15 秒タップするだけで、湿度・気温・UV・風と睡眠などの生活習慣との関係を可視化する。使ったコスメを記録すれば、使った日と使わなかった日で指数の平均がどう違ったかも見比べられる。肌を撮影する必要はない。診断・医療目的ではない。アカウント不要・買い切り。 Web: https://freetokyo.github.io/web/hadalog/ App Store: https://apps.apple.com/app/id6793892712 Android 版: 準備中 / in preparation(Android 9.0 以降、Google Play で公開予定。公開まで URL は出さない) 開発: freetokyo(個人開発) バージョン: 1.2 / 対応: iOS 26.0 以降 対応言語(Webページ): ja / en ## What it is Tap through three questions — tightness, oiliness, unsettledness — on a five-point scale. It takes about fifteen seconds. If you own a moisture meter, you can enter its readings instead. Weather (humidity, temperature, UV, wind) and Health (sleep, steps, water, cycle) are gathered automatically for the items you allow, and treated as that day's inputs. In the evening, one tap tells the app how it actually went, and the forecast moves closer to your own patterns. After fourteen days of records, it switches from general patterns to your own. Hadalog is a wellness app, not a medical device. It does not diagnose, treat, or predict illness. The index it shows (0-100) indicates how much the day's conditions overlap; it is not a probability of a skin problem. ## Free features - Today's skin condition index - Today's care suggestions - Daily entries and records (unlimited) - Evening check-back - Calendar and 7-day trend ## Full Access features - Tomorrow's forecast and suggestions - Long-range trends, factor correlations, cycle phase - PDF export - Local backup ## Privacy Your records and Health data never leave your device, and no account is needed. Only when fetching the weather is your location sent to Apple. Health data is read only and is never written, used for advertising, or shared. The only network service contacted is Apple's WeatherKit, for weather data. ## Pages - Home (ja): https://freetokyo.github.io/web/hadalog/ - Home (en): https://freetokyo.github.io/web/hadalog/en/ - Support: https://freetokyo.github.io/web/hadalog/en/support.html - Terms: https://freetokyo.github.io/web/hadalog/en/terms.html - Privacy: https://freetokyo.github.io/web/hadalog/en/privacy.html ## 日本語概要 「なぜ今日は調子が違うのか」を、天気と生活の重なりとして見えるようにするアプリです。カメラで肌を撮る必要はありません。 ハダログは自己管理のための記録アプリです。医学的な診断や治療の代わりになるものではありません。気になる状態が続くときは皮膚科の専門医にご相談ください。 ## ページ - 紹介: https://freetokyo.github.io/web/hadalog/ - サポート / FAQ: https://freetokyo.github.io/web/hadalog/support.html - 利用規約: https://freetokyo.github.io/web/hadalog/terms.html - プライバシー: https://freetokyo.github.io/web/hadalog/privacy.html - en: https://freetokyo.github.io/web/hadalog/en/