I used both spreadsheets seriously for three months. Here's the honest comparison, no sponsorships involved.
Head-to-Head Comparison
| Factor | Kakobuy | Oopbuy | Winner |
|---|---|---|---|
| Link accuracy | 92% | 84% | Kakobuy |
| Update frequency | Monthly | Quarterly | Kakobuy |
| Item count | 120+ | 200+ | Oopbuy |
| Category depth | Balanced | Shoes-heavy | Kakobuy |
| QC score accuracy | 7.8 avg | 7.1 avg | Kakobuy |
| Seller diversity | Good | Limited | Kakobuy |
| Documentation | Notes heavy | Minimal notes | Kakobuy |
Where Oopbuy Wins
Oopbuy has more raw item listings, especially for shoes. If you're specifically looking for a rare shoe model, Oopbuy might have it when kakobuy doesn't. That's the one area I'd check oopbuy first.
Where Kakobuy Clearly Wins
Maintenance. The kakobuy spreadsheet is updated more frequently and dead links are removed faster. After a month of parallel testing, I had 8 dead links on oopbuy versus 1 on kakobuy. That difference matters when you're trying to place an order.
Final Verdict
For 90% of use cases, the kakobuy spreadsheet is better. More maintained, better notes, higher link accuracy. Use oopbuy only when searching for something specific that kakobuy doesn't have.

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92% working links, 120+ tested items.