BATTERY LENS Privacy Policy
1. Who we are
BATTERY LENS is published by Vivek Raju Prem Chandra Raju, a sole proprietor, trading as CookieeJar Technologies, #3, 23rd Cross, Rangaswamy Temple Street, Chickpet (opp. to Union Bank), Bangalore – 560053, Karnataka, India. Contact: cookieejartechnologies@gmail.com. Grievance contact: Vivek Raju Prem Chandra Raju, proprietor, same email.
2. What the app handles on your phone
| Information | Why | Where it goes | How long |
|---|---|---|---|
| Battery readings: level, charging state, current, voltage, temperature, thermal status, screen on/off, uptime, and the estimates, charging sessions and heat records built from them | Show live readings, history, health and runtime estimates, alerts and widgets | Stays in app-private storage on your phone | Until you delete it or uninstall. The app may trim the oldest records to limit storage. |
| App usage events (optional): which apps were in the foreground, their names and time used | Show screen time and whole-phone battery drop while apps were on screen | Processed on your phone only. Needs Android “Usage access”, which you grant and can revoke. | Up to 7 days |
| Connected Wi-Fi name (optional) | Label completed speed tests | Stays on your phone. Needs location permission while you use the app. The app does not read GPS coordinates or nearby networks. | With speed-test results, 30 days |
| Speed-test results: time, test location, speeds | Show your Internet history | Stays on your phone | 30 days, then deleted automatically |
| Saved charger and cable tests: the power measured at your battery, time, charge range and temperature, plus any name and rated watts you choose to type | Let you compare chargers and cables | Stays on your phone. Up to 50 are kept. | Until you delete one, delete all, or uninstall |
| A battery capacity you type in (optional) | Used as the reference for your battery health when your phone does not share one | Stays on your phone | Until you change or remove it, or uninstall |
| Settings and choices: theme, alerts, recording preference, notice acknowledgements, battery-tips choices, how many times you have opened the app, whether you have seen the one-time feedback card, and the time you last opened the app | Remember how you set up the app, avoid showing a tip right after you have used it, and show the feedback card once | Stays on your phone | Until you change it or uninstall |
| Feedback you email to us (optional) | Reply to you and improve the app | Only if you press send in your own email app. The message includes your email address, what you write, and the app version, Android version and phone model unless you remove them. | As long as needed to deal with your message; we aim to delete it within 12 months |
Your charging habits (for example, how often the phone is left full on the charger) are worked out on your phone from the charging history above. Nothing is sent anywhere for this.
The app does not read your contacts, messages, photos, files, microphone or camera. It does not send your battery records, app usage or Wi-Fi names to us, to Google’s ad services or to the speed-test provider. Android cloud backup of the app is switched off.
3. Permissions the app asks for
| Permission | What it is for |
|---|---|
| Internet, network state, Wi-Fi state | Ads (Google Play version), the optional speed test, and showing your connection type and live traffic rates |
| Location, while the app is in use (optional) | Android only lets apps read the connected Wi-Fi name if location access is granted. The app uses it for that name only. |
| Usage access (optional special access) | Screen time and drain-while-in-use figures |
| Notifications | Charge alerts, the recording notice, the optional daily summary and optional battery tips |
| Foreground service and run at start-up | Optional background recording of battery readings, which shows a notification while it runs and can be resumed after a restart if you left it on |
4. Third parties
Google AdMob and Google’s consent tool (Google Play version only)
The Google Play version shows a small banner ad using Google Mobile Ads and Google’s User Messaging Platform. Where required, a consent form appears first and ads are not requested until the rules allow it. Google may process your IP address (and so your approximate location), advertising and device identifiers, how you interact with ads, and diagnostic data, for advertising, measurement, analytics and fraud prevention. Google handles that data under its own privacy policy. You can use Ad privacy choices in the app (shown when required) and the advertising settings in Android to change or reset your advertising choices. No battery readings or app-usage records are attached to ad requests. The no-ads edition we offer outside Google Play has no advertising code.
Cloudflare (optional speed test)
When you start a speed test, the app connects over HTTPS to speed.cloudflare.com and exchanges generated test data of up to 256 MiB plus network overhead, so mobile-data charges may apply. Cloudflare receives your IP address and request information and can infer your internet provider and approximate city or country. It may use speed-test data for its network insights under its privacy policy. Tests stop when you leave the Internet tab or send the app to the background. The first test asks you to acknowledge this.
No sale of your data
We do not sell your personal information. Advertising partners process data as described above under their own policies.
5. Your choices
- Revoke location, usage access or notifications at any time in Android settings; the related features stop.
- Stop background recording from the app or the recording notification.
- Battery tips are optional and off by default. When on, the app shows silent tips on your phone, one or two a day at most, never overnight and not right after you open the app. Turn them off in Settings or with Stop tips on any tip. Tips are chosen on your phone from a built-in list; nothing is sent anywhere.
- Delete recorded history in the app under Settings → Privacy & about. Recording can create new history afterwards. Android system usage records and anything already processed by Google or Cloudflare are outside these controls.
- Share health card makes a picture on your phone showing your phone model, battery health, capacity and the date. It goes only where you choose to send it through Android’s share sheet; BATTERY LENS does not upload it. A temporary copy stays in the app’s private cache until the next card replaces it.
- Send feedback opens your email app with a message addressed to us. Nothing is sent unless you press send. Rate on Google Play opens the Google Play page, where your rating is handled by Google under its own terms. The one-time card that suggests these is shown once and has no effect on how the app works.
- Delete saved charger tests one by one or all at once under Charger and cable results.
- Uninstalling the app removes its stored data from your phone.
6. Security
Network traffic uses HTTPS only. Data is kept in app-private storage and is not included in Android backups. No system is completely secure, so we cannot guarantee absolute security.
7. Your rights
Because your readings stay on your phone and we do not receive them, you can see and delete them directly in the app. For anything we or our providers hold, you may, depending on where you live, have rights to access, correct or erase personal data, to withdraw consent, to complain to a regulator, and to a response from us. In India these include the rights given by the Digital Personal Data Protection Act, 2023, including grievance redressal and nominating a person to act for you. In the EU or UK they include those under the GDPR and UK GDPR. California residents have rights under the CCPA. To use a right, email us at the address above and we will respond within the time the applicable law requires. For data held by Google or Cloudflare, please use their own tools and contacts.
8. Children
BATTERY LENS is a battery and network utility intended for adults aged 18 and over. We do not knowingly collect personal data from children. If you believe a child has used the app, contact us and tell us how we can help.
9. International processing
Google and Cloudflare operate worldwide, so data they process may be handled outside India. Their policies describe the safeguards they use.
10. Changes to this policy
We will update this page and its effective date when our practices change and keep earlier versions available on request. For material changes we will say so in the app or the store listing.
11. Contact and grievances
Questions, requests or complaints: cookieejartechnologies@gmail.com. Grievance contact: Vivek Raju Prem Chandra Raju, proprietor, at the address above.