Version 2.0 | Last updated: October 25, 2026 | Effective: October 25, 2026
BlueTools (“BlueTools Bluetooth Assistant”, hereinafter the “App”, “we”, “us”) is a Bluetooth Low Energy (BLE) debugging and analysis tool. This Privacy Policy explains what information we process when you use the App, why we process it, who we share it with, how long we keep it, and what rights you have.
This Policy applies to the App and to our website at bluetools.savequan.com. It does not apply to third-party services that have their own privacy policies.
We do not sell your personal information.
To provide the App’s core functions — scanning, connecting, browsing GATT services and characteristics, reading/writing characteristic values, and acting as a virtual peripheral — we process:
- names, local names and advertised identifiers of nearby BLE devices;
- the Bluetooth identifier (UUID) assigned to a device by your operating system;
- signal strength (RSSI) and, where advertised, manufacturer data;
- GATT service and characteristic UUIDs, descriptors and values that you read from or write to a device;
- the communication log you generate inside the App.
This information is processed on your device and is stored locally in the App’s database. We do not upload Bluetooth scan results, GATT data or communication logs to our servers, and we do not use them for advertising or analytics. Locally stored logs remain on your device until you delete them in the App or uninstall the App.
Bluetooth scanning requires the Bluetooth permission of your operating system. You can revoke it at any time in system settings; the App will then be unable to scan or connect, but its other screens remain usable.
When you use the App, we and our service providers automatically receive:
- device model, device category and operating system version;
- App version, App language and system language, region;
- IP address (necessarily transmitted when the App communicates with a server);
- a randomly generated App instance identifier (used to distinguish installations; it is not the advertising identifier and is not linked to your identity);
- in-app events, such as “opened the settings page”, “connected to a device”, “copy-to-virtual-peripheral succeeded/failed”. Event names describe feature usage only; they do not contain device names, MAC addresses, characteristic values or other content you read from a device.
1.3 Advertising and tracking identifiers
The App displays app-open advertisements supplied by Google AdMob. Only if you allow tracking through Apple’s App Tracking Transparency (ATT) prompt may the advertising identifier (IDFA) be used to deliver personalised advertising. If you decline, or if you later turn off “Allow Apps to Request to Track” in iOS Settings, advertisements are served on a non-personalised basis and the IDFA is not used for tracking.
You can change this choice at any time under iOS Settings → Privacy & Security → Tracking.
Subscriptions are sold and processed by Apple through the App Store. Apple is the merchant of record. We do not receive or store your payment card, billing address or Apple Account credentials. We only receive the transaction status needed to unlock the paid features.
The App has no account system: you do not register, log in, or provide an email address, phone number or profile to use it. If you choose “Email Feedback”, the message is composed and sent from your own mail client to bluetools@asmo.fun; we then receive whatever you choose to include in that email.
1.6 What we do not collect
We do not collect your name, email address, phone number, contacts, calendar, photos, camera or microphone content, precise or approximate location, health data, or biometric data. We do not build user profiles across other apps or websites, and we do not sell or rent personal information to anyone.
1.7 Local storage on your device
App settings are stored in the system preferences of your device. Bluetooth communication logs and virtual-peripheral configurations are stored in a local database inside the App’s sandbox. This data is not backed up to our servers. Deleting the App removes it.
We use the information described above to:
- scan for, connect to, read from and write to BLE devices, and to emulate a peripheral (Section 1.1 data — on device only);
- keep the App stable, diagnose crashes and fix defects;
- understand which features are used, so that we can improve them;
- display advertisements that fund the free version of the App, and honour your advertising choice;
- verify and restore your subscription status;
- comply with legal obligations, and respond to your requests under Section 8.
We do not use Bluetooth data, GATT values or communication logs for advertising, profiling or analytics.
3. Legal bases and consent
Where the laws of your jurisdiction require a legal basis, we rely on:
- performance of a contract — providing the Bluetooth functions you request and delivering purchased subscriptions;
- your consent — analytics, advertising identifiers, and cross-border transfer (Sections 5 and 6);
- legitimate interests — keeping the App secure, stable and free of abuse, balanced against your rights;
- legal obligation — retention or disclosure required by law.
Where consent is the basis, it must be given freely and can be withdrawn at any time (Section 8.5). Withdrawing consent does not affect processing that took place before the withdrawal.
We do not share personal information with third parties except:
- with the service providers listed in Section 5, strictly for the purposes stated there;
- with Apple, where necessary to process a subscription, handle a refund, or investigate a purchase problem;
- where you ask us to, or where you direct us to share something;
- where required by law — in response to a valid legal request, court order, or to protect the rights, safety and property of our users, the public or ourselves;
- in a corporate transaction — if the App or the relevant business is transferred, merged or reorganised, information may be transferred as part of that transaction, subject to this Policy; we will notify you beforehand.
We do not sell personal information, and we do not share it with data brokers.
5. Third-party services and SDKs
The App integrates the following third-party services. Each of them processes information under its own privacy policy, which we encourage you to read.
| Service |
Provider |
Purpose |
Information involved |
Privacy policy |
| Firebase Analytics |
Google LLC (United States) |
Usage statistics, feature improvement |
App instance ID, device model and OS version, language, approximate region derived from IP, in-app event records |
https://firebase.google.com/support/privacy |
| Google Mobile Ads (AdMob) |
Google LLC (United States) |
App-open advertising |
Device and advertising identifiers (IDFA only with ATT permission), IP address, ad impression and click records |
https://policies.google.com/technologies/partner-sites |
| Countly (self-hosted) |
Operated by us, server located in mainland China |
Usage statistics, crash analysis |
Device model and OS version, App version, event records, crash stack traces, IP address |
This Policy |
| Apple App Store / StoreKit |
Apple Inc. |
Subscription payment and receipt validation |
Purchase records; we do not receive your payment details |
https://www.apple.com/legal/privacy/ |
| Alibaba Cloud OSS |
Alibaba Cloud Computing Ltd. (mainland China) |
Delivering an operational configuration file (whether to show the app-open ad) |
IP address |
https://www.aliyun.com/ |
If we add or replace a service provider, we will update this table and the “Last updated” date before the change takes effect, and we will notify you under Section 11 where the change is material.
6. Cross-border transfer
Some of the service providers above are located outside your country. When you use the App, the information listed in Section 5 may be transferred to and processed in the United States (Google LLC) and in other countries where Google operates facilities.
Details of the transfer, as required by applicable law:
- Recipient — Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States. Contact: https://support.google.com/policies/contact/
- Purpose — usage statistics, crash diagnosis, advertising delivery and measurement, as described in Section 5.
- Method — encrypted transmission (HTTPS) from your device directly to the recipient’s servers; storage and further processing by the recipient according to its own privacy policy.
- Categories of information — App instance ID, device model, OS version, language, IP address, in-app event names, advertising identifier (only with ATT permission).
- Your choice — cross-border transfer of analytics and advertising data is based on your consent. You may object to or withdraw that consent at any time by writing to
bluetools@asmo.fun (see Section 8.5); we will stop the corresponding transfer for your installation and confirm within 15 working days.
The Bluetooth data described in Section 1.1 is never transferred across borders, because it is never uploaded at all.
7. Storage, retention and security
Location. Bluetooth logs and App settings are stored locally on your device. Analytics data collected by the self-hosted Countly service is stored on servers located in mainland China. Analytics and advertising data handled by Google is stored on Google’s servers outside mainland China.
Retention.
- Bluetooth communication logs: on your device until you delete them or uninstall the App.
- Analytics events: no longer than 24 months from collection.
- Crash reports: no longer than 12 months from receipt.
- Support emails: no longer than 24 months after the matter is closed.
- Records we must keep by law (for example, accounting records relating to purchases): for the period the law prescribes.
When a retention period ends, we delete or irreversibly anonymise the data.
Security. Data in transit between the App and our servers and the service providers listed above is protected with HTTPS/TLS. Access to our self-hosted analytics server is restricted to authorised personnel. No method of transmission or storage is completely secure, but we take reasonable technical and organisational measures appropriate to the sensitivity of the data — which is one reason we deliberately keep Bluetooth content on your device rather than on our servers.
Security incidents. If a personal information breach occurs, we will notify affected users and the competent authority as required by applicable law, describing the nature of the incident, the categories of data affected, the measures we have taken, and what you can do to reduce harm.
8. Your rights
You may exercise the following rights in relation to your personal information. To do so, email bluetools@asmo.fun with the subject line “Privacy Request”. Because the App has no account, we may ask you for the App instance identifier or other information reasonably necessary to locate your data; we will not ask for more than is needed.
- Access and copy — obtain confirmation of whether we process your information and receive a copy.
- Correct — have inaccurate information corrected or completed.
- Delete — have information deleted, including data derived from it stored locally, by clearing it in the App or uninstalling the App.
- Restrict or object — object to processing based on legitimate interests, or ask us to restrict processing.
- Withdraw consent — withdraw consent for analytics, advertising identifiers or cross-border transfer at any time. You may also disable tracking directly in iOS Settings → Privacy & Security → Tracking.
- Portability — receive the information you provided in a structured, commonly used format where applicable.
- Complain — lodge a complaint with us, or with a supervisory authority. Users in mainland China may contact the Cyberspace Administration of China or the 12321 reporting centre. Users in the EEA may contact their local supervisory authority.
Response time. We respond to every request within 15 working days. If we cannot fulfil a request, we will tell you why and explain how to appeal. Exercising your rights is free of charge; we may charge a reasonable fee for manifestly unfounded or excessive requests.
Deletion is immediate and irreversible. Uninstalling the App deletes all locally stored Bluetooth logs and settings; there is no server-side copy to restore.
9. Children
The App is a professional Bluetooth debugging tool intended for a general audience and is not directed to children under 14 years of age (or under the age of digital consent in your jurisdiction, such as 16 in some EU member states). We do not knowingly collect personal information from children.
- If you are a parent or guardian and believe a child has used the App or provided information to us, contact
bluetools@asmo.fun. We will delete the relevant information within 15 working days and, where necessary, restrict the installation.
- If we learn that we have collected personal information from a child without verified parental consent, we will delete it as quickly as possible.
- Purchases and subscriptions made from a child’s device remain subject to Apple’s family and purchase-approval settings.
10. Third-party links
The App and our website may contain links to other sites (for example, the privacy policies of the service providers listed in Section 5, or our other applications). Those sites are not operated by us, and we are not responsible for their content or privacy practices. We encourage you to read their policies before providing information to them.
11. Changes to this Policy
We may update this Policy to reflect changes in the App, in the services we use, or in the law.
- Non-material changes (for example, wording clarification, a changed contact address) take effect when published on this page, and the “Last updated” date is revised.
- Material changes — a new category of information collected, a new processing purpose, a new recipient or a new cross-border transfer — will be announced at least 7 days before they take effect, through an in-App notice on the next launch and/or by email if we hold your address, together with a summary of what changed.
- Where a change requires a new legal basis, we will ask for your consent again before applying it. Continuing to use the App is not, by itself, consent to a material change.
- If you do not agree with a material change, you may stop using the App and uninstall it, or contact us to object; we will not apply the change to your data while an objection is pending.
Previous versions are available on request.
BlueTools – Privacy Contact
Email: bluetools@asmo.fun
We aim to answer privacy questions within 15 working days. Please include “Privacy” in the subject line so that your message is routed correctly.
This Policy is published in Chinese and English. For users in mainland China, the Chinese version prevails in case of any inconsistency. This document describes our current practices; it is not legal advice to any third party.