[042]Worth learning fromChrome extension · ChatGPT / Claude / Gemini / Grok$99–199 one-time purchase + listed for saleData as of 2026-11-02
A cross-assistant search and local backup extension for AI chat platforms, $99–199 one-time purchase
C
Stop building yet another "add folders to ChatGPT" extension. What's worth learning is how AI Toolbox got ChatGPT to sell for it.In this cell of four platforms, only one vendor has passed $10K a month. When a platform ships a feature, extensions that sold only that feature can lose seventy percent of their revenue. If you do enter, build only the layer the platforms won't build for their own reasons, such as cross-assistant search and local backup, and be ready to wait 12–18 months.Worth studying · grade and headline drawn from the full article · next review 12-01
| Background | Four AI chat sites have poor web versions, can't export, and can't nest folders. Extensions fill those gaps. |
|---|---|
| Upside | Only the layer platforms won't build is left: cross-assistant search, bulk Markdown export, local backup |
| Demand | Wants search, export, and one place for all assistants; annoyed by stingy free tiers, fears the host changing and breaking things |
| Competition | Chrome Web Store scan: 163 similar extensions, 42 with over 10K users; only three publicly disclose revenue; free open-source Voyager has 100K users |
| Revenue | AI Toolbox 30 days $22.6k, #2 $1.7k, the rest tens to hundreds (TrustMRR, 11-02) |
| Growth | Chrome Store + 643-page SEO + ChatGPT recommendations (nearly half of paid in week 4). Product Hunt and paid acquisition are not the main channels. |
| Window | It's not a window, it's a lifespan: Gemini's Notebooks Fast Folders dropped 72% that month. |
| Who it's for | People who already have a user base of tens of thousands extending their product for more revenue, or 1–2 people willing to write hundreds of comparison articles and grind for 12–18 months |