Guruko: Libre Glucose Logbook

Guruko: Libre Glucose Logbook

Blood sugar diary for diabetes

0 ratings
3 reviews

Details

Released
July 3, 2026
Updated
November 5, 2026

Features

Guruko: Libre Glucose Logbook video #1 for iPhone
Guruko: Libre Glucose Logbook screenshot #2 for iPhone
Guruko: Libre Glucose Logbook screenshot #3 for iPhone
Guruko: Libre Glucose Logbook screenshot #4 for iPhone
Guruko: Libre Glucose Logbook screenshot #5 for iPhone
Guruko: Libre Glucose Logbook screenshot #6 for iPhone
Guruko: Libre Glucose Logbook screenshot #7 for iPhone
Guruko: Libre Glucose Logbook screenshot #8 for iPhone
Guruko: Libre Glucose Logbook screenshot #9 for iPhone
Guruko: Libre Glucose Logbook screenshot #10 for iPhone
Guruko: Libre Glucose Logbook screenshot #11 for iPhone
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About

This app provides a long-term history and detailed statistics of your blood sugar readings from Abbott FreeStyle Libre. It allows you to view trends, analyze patterns, and log additional data like carbs and insulin. Pro features offer widgets and Apple Watch integration.

✓Long-term glucose history
✓Detailed statistics (TIR, GMI, CV)
✓AGP percentile bands
✓Carb, insulin, and note logging
✓iCloud sync
✓CSV export
✓Widgets and Apple Watch app (Pro)
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What's New in Guruko

2.2.0

November 5, 2026

NEW: LOG WITH SIRI AND ASK FOR YOUR GLUCOSE No more opening the app every time. Say "ぐるこでインスリン" (Guruko de insulin) right as you inject and "ぐるこでメモ" (Guruko de memo) right as you eat. Just talk to Siri and both are logged in Guruko at the time they happened. - "ぐるこでインスリン": Siri asks for the type and units, and confirms before logging - "ぐるこで糖質" (Guruko de carbs): Siri asks for the amount before logging - "ぐるこでメモ": Siri asks what to note and saves your answer as a memo - "ぐるこで血糖値" (Guruko de glucose): Siri reads out your current glucose and whether it is rising or falling. If the last reading is old, Guruko fetches a new one first - Logging and read-outs work even while your iPhone is locked. To turn this off, use Settings > Siri - On iPhones with Siri AI (iOS 27.2 or later), you can also say it in one go, such as "ぐるこでメモ、いまからおにぎりを食べるね" (Guruko de memo, I'm about to eat a rice ball) - Entries go to the records of the person currently selected in the app, and can be edited later in the record list - The first time, Siri asks whether to turn on the Guruko shortcut. Please turn it on - How to use it is shown on the log screen and in Settings > Help > iPhone > Siri FIXES - When two memos shared the same time, saving that entry from the record list could delete one of them. Memos at the same time are now shown together and saved as one IF YOU ARE UPDATING FROM A VERSION BEFORE 2.0 Starting with version 2.0, records are kept separately for each family member. If a device still has an older version installed, records can get mixed up and deleted (deletions propagate to every device through iCloud). - Update one device at a time - If another device has an older version, uninstall it before updating - Uninstalling does not remove your data from iCloud; reinstalling the new version restores it

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User reviews

iPadに対応して

iPadでもアプリ自体は動きますが、duoに対応したならiPadでの表示にも対応して欲しい。

Apple Watchで表示されない

タイトルの通りです。
Apple Watchで血糖値を確認したいから入れたのに表示されませんでした。
即アンインストールしました。

血糖値データが人のものと混ざる

元々自分のリブレからの血糖値データが反映されていたはずなのに、ある時を境に同じくリブレを使っている家族の血糖値データが反映されるようになった。家族のデータを消すことも自分のものに更新することもできない。表示されるデータが混線してぐちゃぐちゃで全く使えたものではない。

Response from developer

Lyrica_221 様 ご報告いただきありがとうございます。また、ご不便をおかけしており 大変申し訳ありません。 いただいた内容をもとに調査したところ、原因を特定いたしました。 LibreLinkUp で複数の方をフォローされている場合に、Guruko 側で 「どなたのデータを取り込むか」を選べる仕組みがなく、サーバーからの 応答順によって別の方に切り替わってしまう不具合です。ご指摘のとおり アプリ側の問題で、私どもの想定が不足しておりました。 現在、次の対応を進めております。 ・フォロー中の方を一覧から選べるようにし、勝手に切り替わらないようにする ・記録を方ごとに分けて保存し、混ざらないようにする ・設定からデータを削除できるようにする 応急的な対処として、LibreLinkUp 側でご家族の共有を一時的に解除 いただく方法がございます。解除後に Guruko を開くと確認のメッセージが 表示されますので「そのまま継続」をお選びください。以降はご本人の データのみが取り込まれます。 すでに混ざってしまった記録については、どの記録がどなたのものかを示す 情報がアプリ内に残っておらず、混在した分だけを選んで取り除くことが できません。次回のアップデートでは、記録をすべて削除して最初から やり直していただける機能をご用意いたします。 記録を長く貯めていただくためのアプリで、その根幹を損なってしまいました。 重ねてお詫び申し上げます。貴重なご報告をありがとうございました。 ご不明な点がございましたら、こちらまでお知らせください。 https://guruko.remosia.biz

Developer apps

FAQ

What is Guruko?

Guruko is a blood sugar diary that fetches your Abbott FreeStyle Libre readings as a LibreLinkUp follower. It stores this data on your device to provide a long-term history and detailed statistics for diabetes management.

Does Guruko have ads?

No, Guruko does not contain advertisements. The app is free to use with core features and offers additional functionality through a subscription.

What are the core features of Guruko?

Core features include long-term history, continuous graphs, time search, statistics like Time in Range (TIR) and GMI, AGP analysis, insights, and logging of carbs, insulin, and notes. CSV export is also available.

What does Guruko Pro offer?

Guruko Pro unlocks widgets for your home and lock screen, an Apple Watch app and complications, Apple Health export, Live Activity/Dynamic Island display, and PDF/CSV reports. This is available via a subscription.

How much does Guruko Pro cost?

Guruko Pro is available for JPY 200 per month or JPY 1,500 per year. Payment is charged to your Apple ID, and subscriptions renew automatically unless turned off at least 24 hours prior.

Is Guruko available on Android?

Based on the provided data, Guruko supports iPhone and Apple Watch. It is not indicated to be available on Android devices.

How often is Guruko updated?

The app was last updated on August 7, 2026, with version 1.1.1. Automatic updates are limited by the OS to save battery, so opening the app is recommended to refresh data.

Is Guruko a medical device?

No, Guruko is a viewing and logging aid, not a medical device. It is intended for use in Japan and relies on LibreLinkUp shared data. Always consult official apps, devices, and healthcare professionals for medical decisions.