True Love Calculator by Smart Apps Pro scratches a very specific itch: type two names, get a percentage, laugh about it with a friend. It is a party trick, not a science, and it does not need an install to work. So we built Heart Sync, a free name compatibility meter that runs the same idea right here in your browser. Type two names and a heart-shaped meter fills in live.
Try Heart Sync now
It opens with two example names already filled in, so a result is on screen before you touch anything. Type your own names and watch the meter move.
How to use it
Type a name into each field. The heart meter fills and the percentage updates on every keystroke, with no calculate button to press. Underneath it, two short notes describe the pairing in plain language, pulled from a small pool tied to the percentage. The same two names always produce the same percentage and the same notes, in either order, so it is worth comparing results with a friend who tries the identical pair.
A “match of the day” card sits below the meter with a fresh example pair each day, just for a bit of extra fun. It does not affect your own result and there is nothing to unlock. Your last two names are saved on your device so they are already there next time you open the page. Nothing leaves your browser.
How Heart Sync compares to True Love Calculator
Heart Sync keeps the one thing that makes this kind of tool fun: two names in, a percentage and a short verdict out, instantly. The full True Love Calculator app builds a bigger experience around that same idea. It typically adds saved name history, extra calculators for friendship or marriage compatibility, animated result screens, and its own sharing graphics.
We left those out on purpose. A page you land on mid-search should show a result in the time it takes to type a name, not ask for a download first. We also do not track or store your names anywhere except your own browser’s local storage.
Our honest take: use Heart Sync for a quick, throwaway laugh with friends, especially on a phone that is not yours. Get the full app if you want a dedicated place to keep revisiting the joke with saved names and extra compatibility modes bundled together.
Get the full app
True Love Calculator by Smart Apps Pro is free on Android and wraps the same kind of name-percentage fun in saved history, extra calculators, and shareable result cards.
Frequently asked questions
Is this a real compatibility test?
No, and it does not claim to be. Heart Sync turns two names into a percentage using a simple, repeatable formula, purely for fun. It is not a scientific or predictive measure of how well two people get along, and neither is the original app it is inspired by.
Can I calculate love compatibility online for free?
Yes. Heart Sync is completely free, requires no signup, and runs entirely in the embedded player above. Type two names and the percentage, the meter, and the notes all update immediately.
Is this the official True Love Calculator app?
No. Heart Sync is an original tool we built, inspired by the name-percentage idea that True Love Calculator is known for. It is not affiliated with, endorsed by, or connected to Smart Apps Pro. For saved history and extra calculators, get the official app from the links above.
Does it work offline and is it free?
Yes. Once the page has loaded, it keeps working without a connection, and it is free with no signup. Your last two names are saved in your browser’s local storage on your device only.
Do the names need to be real people?
Not at all. Try it with friends’ names, fictional characters, pets, or anything else. Since the result is deterministic, the same pair of names will always land on the same percentage, so it is fun to compare notes with someone trying the exact same pair.
