Privacy Policy

ThumbType V3

Effective Date: March 28, 2026  ·  Last Updated: April 30, 2026
Developer: SY5TEM N3XT  ·  App Package: com.sy5temnext.thumbtype

Short version: SY5TEM N3XT does not collect, store, or transmit your personal data to our servers. Everything the app stores stays on your device. The only data that ever leaves your device is text you explicitly send to a third-party AI provider using your own API key — and it goes directly to that provider, never through us.

Contents

  1. What ThumbType Does
  2. Data We Collect — None
  3. Keyboard & Input Method Access
  4. AI Brain Feature & Third-Party AI Providers
  5. Contacts Access
  6. Microphone & Voice Input
  7. Local On-Device Storage
  8. Permissions Explained
  9. Third-Party Services
  10. Children's Privacy
  11. Security
  12. Changes to This Policy
  13. Contact Us

1. What ThumbType Does

ThumbType V2 is a custom Android keyboard (Input Method Editor / IME) developed by SY5TEM N3XT. It includes the following features:

2. Data We Collect — None

SY5TEM N3XT does not operate any servers that receive your data. We do not collect, store, process, or sell any personal information, usage data, analytics, crash reports, or advertising identifiers.

We do not collect:

There are no analytics SDKs, no crash reporting libraries, no advertising SDKs, and no SY5TEM N3XT backend servers in this application.

3. Keyboard & Input Method Access

Important Notice About Keyboard Apps: Android requires that we disclose clearly: as an Input Method Editor (IME), ThumbType has the technical capability to read text as it is typed in any app where the keyboard is active. This is standard behavior for all Android keyboards.

Here is exactly what ThumbType does and does not do with text input:

What ThumbType does with typed text

What ThumbType does NOT do with typed text

4. AI Brain Feature & Third-Party AI Providers

The AI Brain feature is entirely optional. You can use ThumbType as a full-featured keyboard without ever setting up AI Brain.

How AI Brain works

  1. You create your own account directly with OpenAI.
  2. You obtain an API key from OpenAI and enter it in ThumbType's AI Brain settings.
  3. Your API key is stored locally on your device only (see Section 7).
  4. When you tap the robot button, the text in the current input field is sent directly from your device to your chosen provider's API endpoint.
  5. The AI provider returns a rewritten version of the text, which ThumbType inserts back into the input field.

SY5TEM N3XT is not an intermediary. Your text travels directly from your device to the AI provider. SY5TEM N3XT never sees, receives, or stores the text you send to AI providers.

Third-party AI provider and their privacy policy

When you use AI Brain, your text is subject to OpenAI's privacy policy. Please review it:

Billing and charges

Any costs, charges, or credits associated with AI API usage are between you and your chosen provider. SY5TEM N3XT does not receive payment and is not responsible for any charges you incur. Please monitor your API usage in your provider's dashboard.

AI Brain in Contact Capture

The Contact Capture feature also uses your OpenAI API key (if configured) to parse spoken contact information into structured fields. The same rules apply: your voice-captured text is sent directly to OpenAI's API using your own key. SY5TEM N3XT does not receive this data.

5. Contacts Access

ThumbType requests two contacts-related permissions: READ_CONTACTS and WRITE_CONTACTS.

READ_CONTACTS — Send Module & Contact Library

The Send Module's Contact Library feature reads your device contacts to display them inside the keyboard, allowing you to quickly select a recipient while composing a message. Your contacts are:

WRITE_CONTACTS — Contact Capture

The Contact Capture feature allows you to scan a QR code or speak a person's information to quickly create a new contact. When you confirm saving a contact, ThumbType writes it to your device's local contacts app. This data:

Both permissions are requested at runtime and can be denied. Denying these permissions simply disables the relevant features; the keyboard continues to work normally.

6. Microphone & Voice Input

ThumbType requests the RECORD_AUDIO permission for two voice features:

Voice Typing on the Keyboard

The keyboard includes a voice input button powered by Vosk, a fully offline speech recognition engine. When you tap the microphone button:

Voice Contact Capture

In the Contact Capture screen, you can speak a contact's information aloud. The audio is processed on-device to produce text, and then that text may be sent to OpenAI's API (using your own API key) to parse the contact fields. SY5TEM N3XT does not receive your audio or the transcribed text.

The RECORD_AUDIO permission is only active while you are actively using a voice feature. The microphone is not accessed passively or in the background.

7. Local On-Device Storage

ThumbType stores the following data locally on your device only using Android's SharedPreferences and local storage. None of this data is transmitted to SY5TEM N3XT.

All locally stored data can be deleted by clearing the app's data or uninstalling the app.

8. Permissions Explained

Permission Why it is needed Data Destination
INTERNET Required to send text to OpenAI when you tap the AI Brain button. Not used for any SY5TEM N3XT communication. AI Provider Only
RECORD_AUDIO Required for the voice typing button on the keyboard and voice contact capture. Audio is processed by Android's SpeechRecognizer (Google). Android / Google Speech
READ_CONTACTS Required for the Send Module's Contact Library to display your contacts inside the keyboard for quick recipient selection. On-Device Only
WRITE_CONTACTS Required for the Contact Capture feature to save a newly captured contact to your device's address book. On-Device Only
VIBRATE Required for haptic feedback (key tap vibration) on the keyboard. Device Hardware Only

9. Third-Party Services

ThumbType integrates with the following third-party services. SY5TEM N3XT does not control these services and their use of your data is governed by their own privacy policies.

AI Provider (Optional — only if you configure AI Brain)

Google Speech Recognition (Android System)

Used for voice typing on the keyboard and voice contact capture. This is Android's built-in SpeechRecognizer and is governed by Google's Privacy Policy.

ZXing

ThumbType uses the ZXing open-source library for QR code generation and scanning. ZXing processes data entirely on-device and does not transmit any data.

There are no advertising networks, analytics SDKs, or data broker integrations in ThumbType.

10. Children's Privacy

ThumbType is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13.

Important notice regarding the AI Brain feature: The AI Brain feature connects to third-party AI services that require account creation and may involve billing. Users under 18 should not set up API keys without the express permission and supervision of a parent or legal guardian. SY5TEM N3XT is not responsible for any charges incurred by minors through third-party AI service accounts.

If you are a parent or guardian and believe your child has provided personal information to us, please contact us at the address below and we will take steps to address the situation.

11. Security

We take reasonable steps to protect the information stored on your device:

Because we store no data on our own servers, there is no SY5TEM N3XT server that can be breached to expose your personal information.

12. Changes to This Policy

If we make material changes to this Privacy Policy, we will update the "Last Updated" date at the top of this page. We may also notify you through an in-app notice. Continued use of ThumbType after changes are posted constitutes your acceptance of the updated policy.

We encourage you to review this policy periodically. Previous versions are available upon request.

13. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or ThumbType's data practices, please contact us:

SY5TEM N3XT
Website: sy5temn3xt.app

We will respond to privacy-related inquiries as promptly as possible.


Summary of our commitment: SY5TEM N3XT built ThumbType on a privacy-first foundation. We do not collect your data, we do not sell your data, and we do not run servers that receive your personal information. The only network traffic from ThumbType is the text you intentionally send to an AI provider of your choice, using your own account and key, going directly to that provider — never through us.