cue.

English by Dialogue

Privacy Policy

Last updated 25 July 2026 · 303plus Inc.

1. What we never collect

• No account, sign-up, login, email address, phone number, or profile.
• No free-text input. The bug report screen is a fixed set of checkboxes with no text field, so there is nowhere for personal information to be entered.
• No name, contacts, photos, calendar, health data, or precise location.
• No tracking across other companies' apps or websites. Cue never shows the App Tracking Transparency prompt because it has nothing to ask for.
• Your IP address is never stored.

Cue's app listing declares Bluetooth, camera, and microphone usage descriptions. That is because the open-source media library Cue is built on references those system APIs; Cue itself does not use them and never requests those permissions.

2. What stays on your device

Stored locally and never sent to us:

• Your progress log — which phrases you have learned, whether each quiz answer was right or wrong, and when.
• Your settings — chosen voices, speech rate, and window state.
• A random installation identifier used only to name your own file inside your own iCloud container.

Speech is generated on-device by Apple's built-in speech synthesizer. No audio is recorded, and nothing you hear is produced by or sent to a server.

3. iCloud sync (optional)

If you are signed in to iCloud, Cue mirrors your progress log into your own private iCloud container so your progress follows you between your devices. That data belongs to your Apple account. We have no access to it, it never reaches our servers, and it is covered by Apple's Privacy Policy. Disabling Cue under Settings › Apple Account › iCloud stops the mirroring; the app keeps working from local storage.

4. Anonymous usage analytics

Cue uses no third-party analytics SDK. We run a small pipeline of our own so we can see which lessons confuse people, whether learners come back, and whether reported problems cluster on particular content. Each event carries:

• An anonymous installation ID — a random value generated on first launch and stored on your device. It is not your Apple ID, not your device's advertising identifier, and not linked to any identity. Reinstalling the app produces a brand-new one, which we cannot connect to the old one.
• A session ID — random, regenerated each time you open the app.
• The event name and a few properties (listed below).
• App version, platform, timestamps, and a random de-duplication value.
• Country — derived at our server edge from the incoming network connection. The IP address itself is discarded and never written to storage.

The complete list of events is:

• app_open, screen_view — the app was opened; which of the four screens was shown.
• learn_start, learn_done, review_start, cap_reached — lesson and review milestones.
• quiz_answer — whether an answer was correct, and which phrase it was for.
• ad_accepted, ad_declined, ad_watched — your response when an optional ad was offered.
• tip_purchased — that a coffee tip happened. No amount, no payment details.
• report — which lesson and dialogue you reported, where playback had reached, which of the fixed reason checkboxes you ticked, and the quality tier of the voices that were speaking (so that complaints about audio can be told apart from complaints about the wording).

That is the entire list. This data is not used for advertising, profiling, or building a picture of you as a person, and it is never sold or shared with data brokers.

Where it goes. Events are processed and stored on Cloudflare infrastructure (Workers, D1, and R2) in the Asia-Pacific region, acting as our processor. Rows in the queryable database are deleted after 24 months; a compacted raw archive is retained in object storage.

5. Advertising

Cue shows exactly one kind of ad: an optional rewarded video, offered at most once a day, only after you have finished the day's learning goal, and only if you tap to watch it. There are no banners, no interstitials, and no ads inside a lesson.

• Ads are requested from Google AdMob as non-personalized at all times. Cue never accesses the device advertising identifier (IDFA) for tracking and never shows the tracking prompt.
• To serve and measure even non-personalized ads, Google may process device information such as a device identifier, coarse location derived from the network connection, and diagnostic data. This is described in how Google uses information from sites or apps that use its services and in the Google Privacy Policy.
• An ad is fetched in advance only when you are one lesson away from finishing the day's goal. If you decline the offer, the fetched ad is discarded.
• If you are in the EEA, the UK, or Switzerland, Cue shows Google's certified consent form before it ever requests an ad, and asks whether you consent to that processing. Choosing "Do not consent" means no ad is requested and none is ever shown — the rest of the app is unaffected. You can change that choice at any time from Settings › Ad privacy options inside the app.

6. Purchases

"Buy me a coffee" is an optional one-off tip. It unlocks no content and no features. The transaction is handled entirely by Apple; we never receive your payment method, billing address, or Apple ID. Cue records only the anonymous event noted above, saying that a tip occurred.

7. Children

Cue is not directed at children under 13, and we do not knowingly collect information from them. If you believe a child has provided us information, contact us and we will look into it — though note that, by design, nothing collected identifies an individual.

8. Your choices

• Deletion. Your anonymous installation ID is shown at the bottom of Cue's Settings screen — tap it to copy. Email it to cs@303.plus and we will delete every event carrying that ID within 30 days. (Monthly archive files hold many installations merged together; entries there are cleared on the next compaction cycle.) The ID is a random value known only to your installation, so holding it is proof enough to make the request — we ask for nothing else.
• What happens after a deletion. If you keep using Cue, new events are recorded under that same ID from then on, so a deletion clears your history rather than stopping collection. Deleting the app removes the ID entirely; a fresh install generates a new one that we have no way to link to the old.
• Access. Section 4 lists everything we hold, and we will send you the rows carrying your ID if you ask.
• Progress and settings. Everything that actually describes your learning lives on your device and in your own iCloud, entirely under your control — we never receive it.
• iCloud. Turn it off for Cue under Settings › Apple Account › iCloud.
• Ads. Decline the offer, and no ad is shown.

9. Changes to this policy

If what we collect changes, this page and the date at the top change with it. Material changes will also be noted in the app's release notes.

10. Contact

303plus Inc. — cs@303.plus