The App is built around a single principle: the audio you record, and the text transcribed from it, never leave your device. "Personal information" in this policy means personal information as defined by Japan's Act on the Protection of Personal Information.
Our approach
Recording, transcription, and AI-generated summaries and titles all happen entirely on your device. Your audio and the contents of your transcripts are never sent to our servers or to any external AI service. Transcription works even in Airplane Mode.
At the same time, the App shows ads in its free version and collects anonymous usage statistics to improve quality. The contents of your recordings — audio, transcripts, summaries, titles, and the terms you register — are never used for either. The sections below explain, item by item, what stays on your device and what leaves it.
Information stored only on your device
The following is stored in the App's on-device database and file storage, and is never sent to us or to any third party.
- The audio files you record
- Transcript text (including segment boundaries, playback positions, recognition confidence, and alternative candidates)
- AI-generated titles, summaries, and theme names used for filing
- Projects (name, icon, color) and the recordings grouped within them
- Custom vocabulary you register to improve recognition (names, product names, jargon)
- App settings such as the recording scene and haptics, and your free-usage counters
iCloud sync (a Pro feature)
With the paid "Pro" plan, transcripts and projects can sync automatically to your own iCloud (Apple's private database). Audio files are not synced by default; they are included only when you turn on "Sync audio to iCloud" in Settings.
- The destination is the area reserved for your Apple Account, and we cannot access its contents. Handling follows Apple's iCloud mechanisms and policies.
- If you use the App for free, no sync takes place and your data is stored only on your device.
- If you later turn audio sync off, the audio is deleted from iCloud (the audio on your device remains).
Information we collect (usage analytics)
To improve the quality of the App, we collect anonymous usage data through Firebase Analytics (Google LLC). We collect only facts about actions taken; the contents of your recordings and transcripts are never included.
4.1 What we collect
- Feature usage events (for example: started, saved, discarded, or deleted a recording; imported an audio file; generated an AI summary; shared or copied a transcript; ran a search (the keywords are never sent); filed recordings into a project; viewed the paywall; completed, failed, or restored a purchase; viewed a screen)
- Metadata attached to those events (the recording length as a range, the number of transcript segments as a range, whether a transcript was produced, the recording scene, free vs. paid, and the language used for recognition)
- Records about how advertising behaves (your choice on the tracking prompt (such as allow or decline), and the fact that an ad failed to load — never the content of any ad you saw)
- General usage statistics collected by Firebase as standard, such as app launches, sessions, device model, OS version, and app version
4.2 What we do not collect
- The recorded audio itself
- Transcript text, or AI-generated titles, summaries, and theme names
- Project names, registered vocabulary, search queries, or any other content you enter
Advertising and the tracking prompt
If you use the App for free, a small banner ad appears on the recording and playback screens. Ads are delivered through Google AdMob (Google LLC). No ads are shown with the paid "Pro" plan.
- Tracking permission (ATT): To make ads more relevant to you, the App shows the iOS "Allow tracking" prompt. Every feature of the App works whether you allow or decline. Your choice (such as allow or decline) is recorded anonymously in the usage analytics described in Section 4.
- If you allow: Information including the advertising identifier (IDFA) may be used to optimize the ads you see. Handling follows Google's policies.
- If you decline: The advertising identifier is not used, and you will see ads that are not personalized.
- In either case: The contents of your recordings — audio, transcripts, summaries, and registered vocabulary — are never used to deliver or optimize ads.
In-app purchases and subscriptions
Downloading the App, recording, and transcription are free and unlimited. AI-generated titles and summaries, iCloud sync, exporting with timestamps, and ad-free use are available with the paid "Pro" plan (monthly, yearly, or a one-time purchase).
- Payment details: Purchases are processed through Apple's App Store. Payment details such as credit card numbers are handled by Apple, and we never receive them.
- Subscription status: We use RevenueCat (RevenueCat, Inc.) to manage and verify whether a plan is active, its type, and trial eligibility. RevenueCat receives your purchase and subscription status together with an anonymous in-app identifier. No name, email address, or other contact details are shared.
- Purchase events: The fact that a purchase was started, completed, cancelled, failed, or restored is also recorded as an anonymous event in the analytics described in Section 4 (which may include the plan type, amount, and currency).
Handing a transcript to an external AI app (only when you do it)
The App offers a way to work on a transcript in an AI app such as ChatGPT, Claude, or Gemini. This feature copies a request and the transcript to your device's clipboard and opens the app or website you choose — nothing more. The App never sends the content on your behalf.
What the App does not collect
The App does not use any of the following.
- Sending audio or text to external AI or speech recognition APIs (OpenAI, Google Gemini, Claude, and the like) — transcription and summaries run entirely on your device
- Location, contacts, photos, or the camera
- Account registration (email address, password, or social sign-in)
- Attribution data collected for advertising measurement (such as Apple Search Ads / AdServices)
Third-party services we use
We use the following services only to the extent necessary to provide and improve the App.
- Firebase Analytics (Google LLC): anonymous usage analytics
- Google AdMob (Google LLC): ad delivery in the free version
- RevenueCat (RevenueCat, Inc.): subscription status management
- Apple (App Store / iCloud): app distribution and payment processing, and sync to your own iCloud for Pro features
International transfers
Some of the services above operate servers outside Japan, including in the United States. Usage data and subscription status may therefore be processed or stored outside Japan. We handle such data appropriately and in accordance with applicable laws.
Security
Keeping the most sensitive material — your audio and transcripts — on your device is itself the strongest safeguard we can offer. Analytics data that does leave the device excludes content, is anonymized, and is transmitted over encrypted connections. In the unlikely event of a leak involving information we handle, we will establish the facts, investigate the cause, work to prevent recurrence, and take the steps required by law.
Retention and deletion
Data on your device is kept for as long as you use the App. You can delete it at any time by deleting individual recordings, or by uninstalling the App, which removes the on-device data including audio files.
Data synced to iCloud is removed from the sync destination when you delete the corresponding recording in the App. Usage analytics data is retained only as long as needed for its purpose, and is deleted or anonymized when no longer required.
Your rights
You may request disclosure, correction, suspension of use, or deletion of information we handle. Data on your device can be deleted within the App, and subscriptions can be managed or cancelled in your device Settings (Apple ID subscriptions). For anything else, please contact us using the details below. We will verify your identity and respond as promptly as the law requires.
Children's privacy
The App is not designed to collect personal information from any particular age group. No account is required, and the contents of your recordings and transcripts stay on your device. We do not knowingly collect personally identifiable information from children.
Changes to this policy
We may revise this policy in response to changes in law or in the service. If a change is significant, we will announce it on this page or on our website.
Contact
Kagoshima-shi, Kagoshima 892-0823, Japan