Toby English

Last updated: 27 August 2026

This Privacy Policy explains what information the Toby English app collects, how it is used, and the choices you have. Toby English is operated by Sentinel Edge Cybersecurity LLC ("we", "us"). By using the app, you agree to the practices described here.

Toby English is an English speaking-practice app. You record yourself speaking, and the app converts your speech to text, corrects it, and reads the correction back to you. The sections below describe the data this involves.

Who this app is for

Toby English is intended for users who are 18 years of age or older. We do not knowingly collect personal information from anyone under 18. If you believe someone under 18 has provided us with personal information, please contact us at the address below so we can remove it.

Information we collect

We collect only what is needed to provide the practice service:

Account identity. You can sign in either with your phone number or with your Google account, through Firebase Authentication (a Google service). If you sign in with a phone number, we store that number. If you sign in with Google, we receive your name and email address from Google. If you sign in with a phone number, we ask you for a name or nickname so the app can address you.
Voice recordings. When you practise, the app records your voice and sends the audio for processing so it can be converted to text and corrected.
Practice content. The text of what you said, the suggested correction, and the spoken (audio) version of that correction are saved so you can review your practice history.
Learning preferences and progress. Your stated English level, your learning goal, your daily reminder time, your streak, and how much practice you have used each day.
App usage and diagnostics. Basic in-app events and crash reports, through Google Analytics for Firebase and Firebase Crashlytics, so we can see which features are used and fix problems.

We do not collect your location or your contacts. We never receive or store your payment card details. Toby English does not show advertising.

How we use your information

To sign you in and keep your account secure.
To convert your speech to text, correct it, and generate spoken feedback — the core purpose of the app.
To show you your past practice sessions and your progress.
To send you the practice reminders you have enabled, as notifications on your device.
To determine whether you have an active subscription or free access remaining.
To understand how the app is used in aggregate, and to diagnose crashes.

We do not sell your personal information, and we do not use it for advertising.

How your information is processed and shared

To deliver these features, Toby English relies on the following service providers, and shares with them only what each one needs:

Google Cloud and Firebase. Sign-in, storage of your account, practice history and audio, generation of AI corrections and lessons with Google's Gemini AI, reading corrections back to you as audio, analytics and crash reporting.
Sarvam AI. Your voice recordings are sent to Sarvam AI to be converted into text. Sarvam AI is an Indian speech-recognition provider.
Google Play Billing and RevenueCat. If you subscribe, Google Play processes the payment and RevenueCat records whether your subscription is active. We receive confirmation of your subscription status only. Your card or payment details are handled by Google Play and never reach us.

We share your information with these providers only to operate the app, and with no one else except where required by law. We do not sell your personal information.

How long we keep your data

We keep your account and practice data for as long as your account exists, so that your history is available to you. When you delete your account, your account record, practice history and stored audio are deleted from our active systems immediately, and are removed from routine backups within 30 days. We may retain a minimal record of a transaction where we are required to do so by law or by Google Play's billing requirements.

Deleting your account and data

You can delete your Toby English account and all data associated with it at any time. There are two ways to do it:

In the app. Open Toby English, go to Profile → Delete account, and confirm. This is immediate and does not require contacting us.
By email. If you cannot use the in-app option — for example, you no longer have the device — email admin@sentineledgecyber.com from the email address linked to your account, or including the phone number you signed up with, and ask us to delete your account. We will verify that the request comes from the account holder and complete the deletion within 30 days.

What is deleted: your account identity (phone number or Google name and email), your name or nickname, every voice recording, all practice text and corrections, your practice history, your learning preferences, and your progress and streak.

What is kept, and for how long: deleted data is removed from routine backups within 30 days. Where a subscription payment has been made, a minimal transaction record may be retained for as long as tax and billing law requires. Anonymous, aggregated usage statistics that cannot be linked back to you may be retained.

Cancelling a subscription is separate from deleting your account. You can cancel at any time in the Google Play Store, under Payments and subscriptions.

Security

Your data is transmitted over encrypted (HTTPS) connections and stored on Google Cloud infrastructure. While no method of transmission or storage is completely secure, we take reasonable measures to protect your information.

Your choices

Recording is the core function of the app, so the app requests microphone access. You can decline or revoke this permission in your device settings, though the practice feature will not work without it. Notifications are optional and can be turned off in the app under Profile, or in your device settings. You can remove all of your data at any time by deleting your account.

Changes to this policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. Significant changes may also be communicated within the app.

Contact

If you have any questions about this Privacy Policy or your data, contact us at admin@sentineledgecyber.com.