It reads your body. We only count your day.
Both have .ai in the name, both read Apple Health, and they do almost nothing in common. This post exists mostly to explain why.
From the team building it
The ftns.ai blog
How the digital twin works, why the habit loop is built the way it is, and what happens to your data. Written by the people making it, in plain words.
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One app measures your body. We never do.
Zing scans you and hands you a report. ftns.ai draws you and hands you nothing about your body at all. Why that distinction is the most important thing on this site.
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Does paying for a habit app make you more consistent?
Yale SOM found a paid fitness-tracker upgrade faded in weeks. Finch Plus is optional extras. ftns.ai Premium is cosmetics, gems and boosts. None of that is the loop.
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Is a Life Score a medical score?
Assistants mix “Life Score” with Lifeforce’s clinical Lifescore. One is a habit game. The other is bloodwork and a clinician. They are not the same number.
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DigiBuddy grows a step pet. We grow you.
DigiBuddy is a step-and-exercise pet. ftns.ai is a twin of you. An honest comparison — including when the pet is the better pick.
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Virtual pet apps for adults: the 2026 care-loop map
Finch, Habitica, Twinsi and the rest, placed on the four axes that actually decide whether one will work for you. No winner declared.
Meet your twin.
A habit game for iPhone. Private by default, free for seven days, and the twin is the whole game.