Privacy Policy

Effective Date: 19 July 2026  |  Last Updated: 19 July 2026

This Privacy Policy describes how Chronos Labs (“we,” “us,” or “our”) handles information when you use the Android app Loan Calculator & Amortization (the “App”) distributed on Google Play.

By using the App, you agree to this Privacy Policy. If you do not agree, please do not use the App.

Important: This policy applies to the Android app on Google Play. An iOS version of our product may have different features (for example accounts or subscriptions) and may be covered by a separate or combined policy. Always read the policy linked from the store listing and in-app Settings for the platform you are using.


1. Who we are and how to contact us

Developer / controller (for this App): Chronos Labs

Privacy & support contact: [email protected]

You can also reach us from the App under Settings → Support.

Website (product): https://loancalculatorpro.app


2. What this App is (and is not)

The App is a free, ad-supported financial calculator for planning and education. It helps you estimate loan payments, interest, amortization schedules, and related planning tools.

The App:


3. Summary of data practices (Android)

Topic Practice on Android
User accounts None — no sign-up, sign-in, or cloud profile
Loan calculation inputs (amount, rate, term, income, etc.) Processed on your device for calculations; not uploaded to Chronos Labs servers for math
Cloud sync of calculations Not offered on Android
Local settings (country, language, theme, etc.) Stored on your device
Advertising Yes — Google AdMob (and, in some regions, Yandex)
Analytics SDKs (Meta/Firebase product analytics) Not used in the Android app as shipped
In-app purchases Optional one-time “Remove Ads” may be offered via Google Play Billing (when enabled in a given release); no subscriptions in the Android ads-only design

4. Information we process

4.1 Information you enter in calculators (financial planning inputs)

You may enter amounts such as:

How we use it: Only to compute results and show schedules, charts, and exports on your device.

What we do not do: We do not send these calculation inputs to Chronos Labs servers for storage, account sync, underwriting, or advertising profiling. If you use Share, PDF/CSV export, or similar features, the content you choose to export leaves the App under your control (for example via Android’s share sheet to apps you select).

4.2 Information stored locally on your device

The App may store on your device (for example via Android preferences / local storage):

You can clear this data by clearing the App’s storage in Android system settings or uninstalling the App.

4.3 Device and network information (for ads, routing, and basic operation)

Depending on your region, device settings, and consent choices, advertising and related SDKs may process:

App permissions we declare:

We do not request contacts, photos, microphone, camera, SMS, phone numbers, or precise location permissions for this App.

4.4 Ad network selection (ad routing)

To choose an ad provider for some regions, the App may make a lightweight HTTPS request to a server-side function (hosted on infrastructure we operate with Supabase).

That request is used only to decide ad routing (for example AdMob vs Yandex for a supported country). It does not include your loan amounts, rates, incomes, or calculation results.

4.5 Optional in-app purchase (Remove Ads)

When enabled in a given App release, you may purchase a one-time Remove Ads item:

If Remove Ads is not enabled in your installed version, the App remains free and ad-supported only.

4.6 Support communications

If you email us (for example from Settings → Support or Report Ad), we receive whatever you include in the message (email address, device details you paste, description of the issue). We use this only to respond to support requests and improve the App.


5. Advertising partners and third parties

5.1 Google AdMob and Google User Messaging Platform (UMP)

We use Google Mobile Ads (AdMob) to show banner, native, interstitial, rewarded, and app-open ads (depending on placement and release configuration).

Where required (for example EEA/UK and similar regions), we use Google’s User Messaging Platform (UMP) to obtain and manage consent / privacy choices for personalized ads.

In the App, eligible users can open ad privacy options under:

Settings → Ad Privacy & Consent

You can also manage ad personalization at the system level, for example:

Android Settings → Google → Ads (wording may vary by device)

Google policies / info:

5.2 Yandex Advertising Network (regional)

In some countries (for example where our routing selects Yandex), ads may be served by the Yandex Mobile Ads SDK. Yandex components may include measurement / support libraries (such as AppMetrica components bundled with the ads SDK) for ad delivery, reporting, and fraud prevention.

If Yandex units are not configured or routing fails, the App falls back to AdMob.

Yandex privacy information: see Yandex’s published privacy notices for advertising and mobile products (region-dependent).

5.3 Google Play and RevenueCat (purchases, when enabled)

5.4 Service providers we use for App infrastructure

Provider Purpose
Google (Play, AdMob, UMP, Play Billing) Distribution, ads, consent, optional IAP
Yandex (ads, where routed) Regional ad serving / related measurement
Supabase (edge function) Lightweight ad-routing decision only
RevenueCat Optional Remove Ads entitlement validation (when IAP enabled)
Email provider (for support@…) Support inbox

We require service providers to process data only as needed to provide their services to us, subject to their terms and applicable law.


6. How we use information

We and our partners use the information described above to:

  1. Run loan calculations and tools on your device
  2. Remember your preferences
  3. Show ads and measure ad performance (free tier)
  4. Comply with consent and privacy laws for ads
  5. Route ads to an appropriate network by region
  6. Process optional Remove Ads purchases and restore entitlement
  7. Respond to support and abuse reports
  8. Protect against fraud and abuse
  9. Improve reliability and fix bugs

We do not sell your loan calculation contents. We do not use calculator inputs to train third-party AI models.


7. Legal bases (EEA/UK and similar)

Where GDPR or UK GDPR applies, we rely on:

You may withdraw consent for personalized ads via in-app ad privacy options and device settings (where available). Withdrawal does not affect the lawfulness of processing before withdrawal.


8. Data sharing

We share information only as described in this policy:

We do not sell personal information as “sale” is commonly defined under US state privacy laws for monetary consideration of your calculator inputs. Advertising partners may process device identifiers for their own advertising purposes under their policies and your consent choices.


9. International transfers

We and our partners may process data in the United States and other countries. Where required, transfers are protected by appropriate safeguards (for example standard contractual clauses used by providers, or other lawful transfer mechanisms).


10. Data retention

Data Retention
On-device calculator inputs & results Until you clear them, clear app storage, or uninstall
Local preferences & consent state Until cleared or uninstall
Ad-routing cache Short-lived local cache; refreshed periodically
Support emails As long as needed to resolve your request and for legitimate business / legal records
Purchase / entitlement records (if you buy Remove Ads) Per Google Play and RevenueCat retention practices for billing and fraud prevention

Because Android does not create a Chronos Labs user account for this App, there is no cloud account profile for us to delete for calculator history.


11. Your choices and rights

11.1 In the App

11.2 On your device

11.3 Privacy rights (where applicable)

Depending on your location (for example EEA, UK, California, and other regions), you may have rights to access, correct, delete, restrict, or object to certain processing, and to lodge a complaint with a supervisory authority.

Because most calculator data stays on your device, many requests are fulfilled by clearing app data or uninstalling. For other requests (for example support emails we hold), contact [email protected].

We will not discriminate against you for exercising privacy rights.


12. Children’s privacy

The App is a financial planning tool intended for adults. It is not directed to children under 13 (or the equivalent minimum age in your country), and we do not knowingly collect personal information from children.

Do not use the App if you are under the applicable age. If you believe a child has provided us personal information (for example via a support email), contact us and we will take appropriate steps to delete it.

This App is not designed for Google Play’s Designed for Families / child-directed programs.


13. Security

We use reasonable technical and organizational measures appropriate to a lightweight calculator app, including:

No method of transmission or storage is 100% secure. You use the App at your own risk regarding residual security risks.


14. Third-party links and shared content

The App may open external links (privacy pages, store pages, email clients, share targets). Those third parties have their own privacy practices. If you export or share a PDF, CSV, image, or text summary, the recipient apps and services you choose are outside our control.


15. Do Not Track

The App does not respond to browser “Do Not Track” signals. Ad personalization is governed by Google UMP / device ad settings and partner controls described above.


16. Changes to this Privacy Policy

We may update this Privacy Policy from time to time. We will post the updated policy at this URL and change the Last updated date. Material changes may also be highlighted in the App store listing or in-app notice where appropriate.

Continued use of the App after an update means you accept the revised policy, to the extent permitted by law.


17. Contact

Questions about this Privacy Policy or our data practices:

Email: [email protected]
App: Settings → Support
Package: com.chronoslabs.loancalculator


18. Google Play Data safety alignment (reference)

For Play Console, the Android app is generally described as follows (confirm against the shipping binary):