THE BUSINESS CASEBOOK
Who pays for it? How does it acquire customers? Starting from real products, understand demand, pricing models, and growth signals.
Start reading cases ↓EXPLORE 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.
COMPARE THE BUSINESSES
Only compares historical metrics on this page, not the entire market. Visit estimates do not equal paying users.
Now redirects to Songs by Sophie: writes a custom song as a gift based on memories the customer provides, gives a free preview within 24 hours, and the customer pays to unlock the full version if satisfied.
AI songwriting tool: enter lyrics or a prompt to generate songs, backing tracks, AI covers and music videos, plus mini-tools like stem splitting and mastering and a sound effects library.
A creator monetization app: upload digital content such as photos, videos, PDFs and presets, generate a sales link, and buyers pay by card/Apple Pay and download directly.
AI music video platform: upload a song and generate videos that react to the beat and audio, lyric videos and lip-sync videos, with frame-by-frame editing.
Low-cost LLM API relay: one endpoint to call GPT, Claude, Grok, Gemini and image/video models, with per-request usage and cost logging.
Low-cost email hosting: create mailboxes on your own domain, with IMAP/POP3/SMTP and routing rules.
GBP Manager: helps local businesses optimize their Google Business Profile so nearby customers find them first.
AI studio that turns photos of you or your pet into cinematic short videos, portraits, and songs using trending templates.
A forum for sharing Koikatsu character cards, mods and scenes, where users request cards, post cards and download mods.
Rob Hallam's presale course: teaches founders how to grow on X and turn followers into customers; 10 modules, 54 video lessons, about 6.5 hours, with a text version.
Free design resources site: mockups, fonts, icons, templates and graphics for download, plus small image format conversion tools; accepts designer submissions.
UK site: users pay from 30 pence via direct debit to become members, meeting the direct debit requirement of bank switching rewards; also offers bank switching offer comparisons and money-saving news.