by Eli PetukhovTrack calories, but not every day
Calk replaces endless food searches and photo-AI guesses with editable templates for meals you actually eat. Adjust ingredients and portions, get a Nutrition Report after one focused month, then stop logging and let your weight trend tell you when to check again.
Meter your AI feature: the cost ledger that decides your price
Most founders shipping an AI feature have never measured what a single user costs them in a month. Ninety minutes of instrumentation produces that number, and three levers already in the API move it.
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Build a distribution radar: the agent that finds conversations
Answering the right thread is the highest-quality distribution a new product has. Finding it every morning is a chore, and chores get dropped — so hand the finding to an agent and keep the answering.
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Retention is the only moat left
When anyone can rebuild your feature set in a weekend, the durable question is not what you built. It is why anyone opens it again on day thirty.
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I created Calk because got exhausted of daily calorie tracking. CICO works, but I can't bear daily routine. So I tried to focus on escape from constant logging and shift long-term habits instead.