Zepto sold 1 million memberships in a week, then quietly gave the model away
A ₹19-a-month membership hit a million sign-ups in a week; when the fee stopped differentiating against Blinkit, Zepto repriced it to ₹1 and kept the habit.
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2,000 PUBLISHED CASES · REGULARLY UPDATEDBritannia beat a cookie giant with a guru, not a better cookie
Britannia's me-too cookie Pure Magic beat a 72%-share giant on half the budget by giving it a guru who redefines the category as living in the moment.
Read the caseAdobe's DNG gave cameras one open RAW format and became ISO
Adobe published DNG, a royalty-free archival RAW format, in 2004; Leica, Pentax and Ricoh adopted it, and in 2026 it became ISO 12234-4.
Read the caseMerck put blood-in-urine warnings where men pee, in Banksy-style graffiti
Stencil figures caught mid-stream show bladder cancer's number-one sign — blood in urine — with a QR code to book a check-up.
Read the caseAmazon priced Locker space like airline seats, lifting throughput 9%
Amazon Lockers clogged with slow packages; an ML-plus-LP system reserved capacity per shipping speed and raised worldwide throughput 9% in one season.
Read the caseCLS made FX settle both legs at once, and Herstatt risk finally died in 2002
One clearing bank made each currency payment final if and only if its counter-payment is — the settlement gap that killed Herstatt became unrepresentable.
Read the caseAirtel beamed 5G skeptics into live IPL and won the 2024 Media Abby Grand Prix
Instead of advertising 5G specs, Airtel used its network to beam 10 skeptical fans into Star Sports' studio as avatars — 30M+ watched live.
Read the caseOUI turns a smartphone clip into an eye doctor for remote clinics
OUI's Smart Eye Camera mounts on an iPhone to give slit-lamp-level diagnosis at a tenth of the cost, running 170,000 exams across 60 countries.
Read the caseGrätzel's TiO2 sponge let a one-molecule dye layer make a 7% solar cell
Silicon cells cost ten times conventional power. A nanometre TiO2 sponge coated with one dye layer reached 7% efficiency using low-purity materials.
Read the caseIdea Cellular expanded its mobile network where rivals wouldn't go
After a 2007 IPO, Idea pointed its new capital at remote India — then reached every village through 1,520 service centers and 700,000 corner shops.
Read the caseGati Shakti put 16 ministries on one map to stop India's infrastructure reruns
India stopped its ministries building past each other by forcing every road, rail and port plan onto one shared GIS map before money moves.
Read the caseSamsung's Safety Truck showed overtakers the road ahead; seven Lions followed
A cab camera streamed the road ahead onto four rear screens so drivers could overtake safely; the prototype won seven Cannes Lions, including a Titanium.
Read the caseSuperloop timed its ads to Olympic record speeds so the medium proved the claim
Instead of 30-second spots, the ISP ran ads as long as famous records: 9.58 seconds for the 100m, 22.93 for the 50m freestyle.
Read the caseKurt Johannsen's 1942 road train moved 100 cattle with one driver
A bush mechanic built a 54-metre multi-trailer rig with self-tracking bogies from army surplus, and outback haulage changed.
Read the caseKenya sold treasury bonds over M-Pesa, minimum $30.
M-Akiba cut the government-bond minimum from KSh 50,000 to KSh 3,000 and put purchase on mobile phones; 85% of buyers were first-time bond investors.
Read the caseHavaianas turned Brazil's 'poor man's flip-flop' into a global style icon
Made as a cheap 1962 sandal, Havaianas rebranded from 1994 — colour, celebrities, fun — reaching ~200M pairs a year and 100+ countries
Read the caseHacker News held its character through 14x growth by policing behavior, not users
Hacker News reached 22,000 daily users with its culture intact by banning fluff, setting norms, and keeping the design plain so the right users self-selected
Read the caseUNOS redesigned lung allocation with MIT's models — adopted nationwide on March 9, 2023
An MIT–UNOS team used optimization, regression and simulation to price every trade-off in the lung point system — and the committee adopted their weights.
Read the caseAlquería built Colombia's dairy leader on small farms and corner shops
The dairy sources 99% of its milk from about 6,500 small farmers it also finances, and sells through 500,000 traditional corner stores.
Read the caseThe Ordinary printed beauty buzzwords as fake periodic-table elements
The Ordinary printed beauty buzzwords as fake periodic-table elements, letting chemistry's trusted frame expose the absurdity.
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