Effective date: October 13, 2026
App: HomeKey: Mortgage Calculator (Android, package com.mmb.homekey)
Summary
HomeKey is a free app supported by advertising. The numbers you type into the calculators never leave your phone. There is no account and no sign-in. Ads are provided by Google AdMob and its mediation partner Unity Ads, which collect some device data as described below.
What stays on your phone
The numbers you type into the calculators, your saved calculations, your savings goal, your checklist and your settings are stored only on your device. They are not sent to us or to any advertising company, and they are not included in cloud backups. You can erase all of it at any time from More > Erase all my data, or by uninstalling the app.
Advertising
HomeKey shows full-screen ads between calculators and optional rewarded ads. To deliver and measure these ads, Google AdMob and Unity Ads may collect and share: your device's advertising ID and other device identifiers, your IP address (which shows your approximate location), how you interact with ads and with the app, and diagnostic data such as crash logs. This data may be used to show personalised ads, to limit how often you see an ad, to measure ad performance and to prevent fraud. We do not receive this data in a form that identifies you.
How Google uses data: https://policies.google.com/technologies/partner-sites
Google privacy policy: https://policies.google.com/privacy
Unity privacy policy: https://unity.com/legal/privacy-policy
Your choices
In the European Economic Area, the United Kingdom, Switzerland and US states with privacy laws, the app asks for your consent or shows your options before ads load. Where this applies you can change your choice at any time from More > Ad privacy choices. On any Android phone you can reset or delete your advertising ID in Settings > Privacy > Ads, which turns off personalised ads from all apps.
Internet use
The calculators work without the internet and every result is worked out on your phone from the numbers you type. The app uses the internet only to load ads and to ask for ad consent.
Files you create
PDF reports and CSV schedules are created on your device and are shared only when you choose to share them.
Children
The app is intended for adults (18 and over). It is not directed at children and does not knowingly collect any data from them.
Not financial advice, not a government app
HomeKey provides estimates for planning. It is not a lender, does not offer loans and does not give financial, legal or tax advice. HomeKey is an independent app made by MMB GAMES. It is not affiliated with, endorsed by or connected to any government agency, and it does not provide any government service.
Changes
If this policy changes, the new policy will be posted at this address with a new effective date.
Contact
Questions about this policy: onlinecrypto255@gmail.com