Private beta. Ren currently runs on the WhatsApp sandbox — you'll send a one-time join code to get in. Real numbers, real coaching, just a few users at a time.
Ren
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Why For everyone who's quit a calorie app before ›

Meet Ren,
the coach you won't quit

You've started a calorie app and quit by Friday, probably more than once. Ren remembers you, texts first when it matters, and never makes you feel behind.

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the thing no fitness app gets right

Your goal isn't the only thing
happening to you

static app
sees today's calories
you bend around it
Ren
sees the week you're actually having
it bends around you

One thread(1) for everything
your goal depends on

(1)

Meals, training, sleep, weight — in WhatsApp, where you actually are. No new app to open. No streak to keep. If you can text, you're already using it.

had the harvest bowl at sweetgreen for lunch
sec, pulling sweetgreen's numbers
🥗 harvest bowl: 705 cal, 38g protein
that's logged, 705 cal and 38g protein
that's off sweetgreen's own menu. the dressing wasn't listed, so it's from the food database at ~2 tbsp
(2)

Real numbers in. Not vibes.

Ren doesn't make calories up. Say "had the harvest bowl at sweetgreen" and it pulls the numbers off sweetgreen's own menu; a home-cooked meal goes through a verified food database instead. Either way, Ren tells you where each number came from and which ones are guesses. Photos work too — the plate or the nutrition label on the pack, Ren reads both.

Try it with your own lunch →
(3)

The coach that texts you first

Every tracking app just sits there waiting for you. That's why you quit them by Friday. Ren is the one that notices when you've gone quiet and reaches out, no guilt, with a step small enough that you actually take it. You set the volume too: tell Ren to back off and it backs off. The hard part was never one good day. It's coming back after a bad one. That's the part Ren is built for. And when you're just talking, Ren just talks — no calorie lecture stapled to every reply.

last log · 3 days ago
hey, 3 days quiet 👋
one photo of one meal. that's it, that's the ask.
ok ok, doing it now
and you're back. told you it was easy
(4)

Ask "am I on track" anytime

Ren doesn't recite a running tally at you all day — coaching waits for the right moment. Ask, and you get the straight read: the aggregates run against your real logs, where the goal actually stands. Ren checks your logs before it opens its mouth.

sun 9:42pm
am i on track this week?
honest read: calories landed (avg 2,180), protein hit (141g/day). soft spot is sleep, from what you've logged you're ~40 min under last week.
you got 3 of 4 sessions in. push lights-out earlier sun + mon and you'll hit the cut without losing the lift.
what about the dinner thursday?
factored. you bought the buffer with the wed deficit. order what you actually want.

Get started
with just a text

one more thing · 10 seconds

open whatsapp to start

ren lives in whatsapp. send the message below to get connected — it's a one-time thing for the sandbox we're on.

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want your data in Notion?

by default, ren keeps your logs private. if you'd like a visual dashboard you fully own, connect Notion and ren will mirror everything there.

Connect Notion → skip for now, start chatting