Optional AI is for adults aged 18+
This policy applies only to Fukameru’s optional AI generation. Dictionary, cards, study and other non-AI features remain available to people of all ages without accepting this policy.
AI generation is available only if you are 18 or older. Choosing “Agree and generate” confirms that you meet this age requirement and accept this policy and the processing described in the permission notice. If you are under 18, do not use AI generation.
The app does not use an age-checking API or collect a birth date or identity document. It saves your acceptance on your device and asks again when the policy or processing disclosure changes.
What AI generation processes
Fukameru sends the text needed for each request through its Cloudflare Worker directly to Google’s Gemini API. Definitions use words, readings and the learning language. Examples can also use a selected meaning and difficulty. Speech uses the text to read and a selected synthetic voice. Voice browsing and previews retrieve Google’s existing voice catalogue and samples without generating speech.
The app does not send your whole library, review history, images, imported deck files, microphone audio or existing recordings to the AI service. Do not send sensitive personal information, confidential material or content you do not have permission to share.
Manual and bulk generation start when you request them. Selecting AI as the default sentence source or enabling automatic filling can send requests after you save a card. Automatic filling of missing fields is off by default.
Privacy and retention
Requests use Google’s Gemini API directly. Google’s handling depends on the account’s billing settings and API terms: unpaid services may use inputs and outputs to improve products; paid services do not use them for that purpose but may retain them for abuse monitoring. Cloudflare AI Gateway’s Zero Data Retention routing is not used. Fukameru does not log or persist study text or generated results in its backend. Processing may take place outside Japan.
The API separately retains limited installation-verification and allowance records to protect the service and enforce request limits. Saved results remain with your cards on your device, in private iCloud storage when syncing, or in exports you create. The privacy policy explains these records, retention periods and your choices.
Using generated content
Definitions, translations, examples and synthetic speech can contain mistakes. Check them before relying on or sharing them. AI content does not replace an authoritative dictionary or professional advice.
You can keep generated results with your cards and export them using Fukameru. You remain responsible for having the rights to submitted material and for how you use or share results. Do not present generated speech as a real person’s recording or use the service for harmful or unlawful purposes.
Requests, limits and stopping AI
AI use is subject to the daily allowance and service availability shown in the app. Failed or cancelled requests can still count toward that allowance if processing has started. Cancelling a request may discard the result after the provider has processed it.
To stop future AI requests, turn off automatic filling, choose Tatoeba or Manual as the default sentence source, and stop starting manual or bulk generation. Declining the AI notice leaves the non-AI app available. Deleting a card or stopping AI does not remove copies you previously exported.
Changes and contact
Material changes to this policy or AI processing require renewed acceptance before further generation. This policy does not impose an age minimum on Fukameru’s non-AI features.
For privacy details, read the privacy policy. Questions can be sent to fukameru@arenclissold.com. Do not include private decks, passwords or identity documents.