Decide whether to buy, wait, or skip before you spend — with regret-risk scoring, future-self checks, and a 7-day purchase test.
Turn one-time buyers into a 0-90 day post-purchase retention journey. This skill maps activation, nurture, repeat purchase, reactivation, segmentation, message cadence, product-success content, repurchase offers, email / community touchpoints, and spam boundaries.
Convene a council made of your own selves (you at 70, in 5 years, 5 years ago, the worried you and the bold you) to weigh a decision. Each speaks from what you actually told it, they clash, and you get a regret check, one small experiment for this week and a short letter from your future self. Claims are labelled [You said], [Inference] or [Imagined]. Careful with hard moments. Reflection only, not prediction or professional advice.
Paste a contract, lease, ToS, or vendor clause and get a plain-English red-flag review: which clauses are risky, what they mean in practice, and what to ask before you sign. Flags sneaky auto-renewals, one-sided termination, broad non-competes, and vague liability terms. Reasons from your pasted text plus general contract-pattern knowledge only — never fetches the real document or your jurisdiction's law. Not legal advice; for awareness, not a replacement for a real lawyer.
"What if I'd put ₩1,000,000 into Samsung 10 years ago?" Calculate lump-sum and monthly-contribution outcomes from real historical prices (currency conversion, KOSPI/S&P 500 comparison, max drawdown, recovery date), then build a 9:16 short where the chart draws in and the balance climbs. Includes an averaging-down cost-basis calculator. A historical-data tool, not investment advice or stock recommendations. You are responsible for your own decisions. No API key.
打折前先算一次：用你的歷史價格和銷量，算出客人對價格有多敏感、漲跌多少毛利最高、打幾折要多賣多少才回本。產出 Excel 與一份建議書。
Paste a buyer objection and your defensible product facts, and get three channel-ready replies with a confidence-labelled diagnosis, proof gaps, one follow-up question, and a claim-by-claim honesty check — so you know which reply is safe to send.