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THE BUSINESS CASEBOOK

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Who pays for it? How does it acquire customers? Starting from real products, understand demand, pricing models, and growth signals.

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606 business cases

Prioritizing entries with research dossiers. Rankings are based on historical signals and do not represent opportunity quality; one product may have multiple metric records.

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Top 6 cases on this page · Visit estimates

Only compares historical metrics on this page, not the entire market. Visit estimates do not equal paying users.

CASE / 289Unknown

tippie.de

German mobile payments service: turn your phone into a card reader/payment terminal, or collect digital tips; no monthly fee, a cut per transaction.

Audience
German small merchants and service staff — hair salons, hotels, events, clubs, tradespeople
Pricing
per item
Channel
Other
Checkout referral estimate · 2026.0912,894
CASE / 290Games

uplift.5ch.io

UPLIFT, the paid membership of the 5ch forum: removes ads, gives access to past logs, and lifts regional and carrier posting restrictions.

Audience
Heavy users of Japan's 5ch forum, including overseas people who post via VPN
Pricing
subscription
Channel
Other
Checkout referral estimate · 2026.0912,894
CASE / 291Programming and Developer Software

gpt-tools.co

A third-party action that adds login and payments to GPTs in OpenAI's GPT Store: GPT authors install it to charge users a subscription, and users manage their subscriptions on its site.

Audience
GPT developers who want to charge for the GPTs they build, and ChatGPT users who pay inside those GPTs
Pricing
subscription
Channel
GEO
Checkout referral estimate · 2026.0912,894
CASE / 292Video Games Consoles and Accessories

codehub2021.selly.store

A Selly storefront selling a $5 one-month CodeHub redemption code; the page does not say what redeeming unlocks and only offers a redemption tutorial video.

Audience
Players who already know what CodeHub is and buy codes month by month (industry classified as video games), mainly in the US
Pricing
one-time
Channel
Other
Checkout referral estimate · 2026.0912,894
CASE / 293Animation and Comics

manta.net

Online reading platform for Korean webcomics (manhwa), manga and web novels, browsable by genre, daily updates, completed and popular.

Audience
English-speaking readers who love Korean webcomics (including BL and romance), mainly in the US
Pricing
subscription
Channel
SEO
Checkout referral estimate · 2026.0912,894
CASE / 294Arts and Entertainment

alittleboxofgoodies.com

Make a digital 'care package' for a friend, filled with songs, photos, videos and little gifts, and send them a link to open it.

Audience
Young people who want to send a friend a heartfelt little gift, in India, the US, Mexico and elsewhere
Pricing
Pricing model unknown
Channel
Viral
Checkout referral estimate · 2026.0912,894
CASE / 295Fashion and Apparel

donutproxy.com

Sells residential/mobile proxy IPs for sneaker bots and automation scripts, which users rely on to place orders from multiple accounts during limited releases.

Audience
US resellers who use sneaker bots to flip limited-edition sneakers
Pricing
Pricing model unknown
Channel
Social media
Checkout referral estimate · 2026.0912,894
CASE / 296Unknown

propertyandpoppadoms.co.uk

UK property investing in-person networking events: property investor meetups held in curry restaurants in 50+ cities across the UK, plus a membership, masterclasses and a video library.

Audience
UK property investors, landlords and amateur investors who want to get into the business
Pricing
mixed
Channel
Other
Checkout referral estimate · 2026.0912,894
CASE / 297Animation and Comics

holidaymatsuri.com

Official site of Holiday Matsuri, a year-end anime, cosplay and gaming convention in Orlando, Florida (December 18–20, 2026), selling tickets, hotel rooms and exhibitor applications.

Audience
Anime fans and cosplayers in Florida and the US Southeast
Pricing
one-time
Channel
SEO
Checkout referral estimate · 2026.0912,894
CASE / 298Computer Security

shannon-ai.com

Uncensored LLM chat and API platform that sells itself as an "LLM red-team lab"; users ask it questions mainstream models refuse to answer or call its API.

Audience
AI users who want to get around content moderation and developers doing model safety testing, with the US, India and Venezuela ranking highest
Pricing
per item
Channel
SEO
Checkout referral estimate · 2026.0912,894
CASE / 299Games

uc.zone

Umbrella game-cheat subscription: a bundle of scripts for Dota 2 and Deadlock (map hack, ESP, aimbot etc.), claimed to be ban-proof.

Audience
Dota 2 and Deadlock players in Russia and Eastern Europe who want to use cheats
Pricing
subscription
Channel
SEO
Checkout referral estimate · 2026.0912,894
CASE / 300Running

events.barefootsport.co.nz

New Zealand/Australia sports event registration and timing platform: participants register and pay online and check results afterwards, while organizers use it for registration, payment collection and timing.

Audience
Amateur participants in triathlons, trail runs and similar events in New Zealand and Australia, and event organizers
Pricing
Pricing model unknown
Channel
SEO
Checkout referral estimate · 2026.0912,894