App marketplace
Sell your app to someone who'll run it
Reviewed listings, private buyer conversations, and a closing where Tool Index holds the money until you've handed everything over. Built for products from $100 to $50,000.
1. List
Pick one of your approved tools, write the terms, attach private transfer evidence. $49 one-time, reviewed within a business day.
2. Negotiate
Buyers open private conversations. Offers and counter offers are recorded; both of you sign the same terms before any money moves.
3. Close through Tool Index
The buyer pays us. You transfer. They confirm. We release to you minus 1 percent. Not delivered? They're refunded in full.
What are you selling?
Each guide covers what buyers pay in 2026, what to prepare, and what moves at closing.
SaaS
How small SaaS products actually sell in 2026: what buyers pay for MRR, what they check, and how the transfer works when Tool Index holds the money.
Micro-SaaS
Selling a micro-SaaS with a few hundred dollars of MRR: realistic prices, what buyers of tiny products care about, and a clean handover.
AI Tool
What buyers pay for AI tools and wrappers in 2026, why margin beats revenue, and how to hand over a product that depends on third-party models.
Chrome Extension
Selling a Chrome extension: how the Web Store transfer works, what installs are worth, and the review rules that can sink a deal.
Mobile App
How iOS and Android apps change hands: App Store transfer rules, what downloads and subscribers are worth, and the checklist buyers use.
Newsletter
Selling a newsletter: what subscribers and open rates are worth, sponsorship revenue multiples, and the platform handover.
WordPress Plugin
Selling a WordPress plugin or theme: active installs versus paying customers, license servers, and the WordPress.org ownership transfer.
Shopify App
Selling a Shopify app: partner account transfer, what merchants and MRR are worth, and how app store reviews affect the price.
API
Selling an API or developer tool: usage-based revenue multiples, how buyers judge dependency risk, and transferring keys without breaking customers.
Directory or Content Site
Selling a directory, listing site or content site: traffic-based valuation, domain authority, listing revenue, and what a clean handover looks like.
For sale right now
Fees, in full
- $49 one-time to list. Covers the transfer-evidence review. The listing stays live until it sells or you withdraw it.
- $149 one-time for a featured slot, 30 days at the top of the marketplace. Optional.
- 1 percent of the closing price, minimum $19, maximum $199, plus the card processor's actual fee. Deducted from the release to the seller. Buyers pay the agreed price and nothing else.
Questions
- What does it cost to sell?
- $49 once to list, which covers our review of your transfer evidence. When a deal closes, 1 percent of the price with a $19 floor and a $199 cap, plus the card processor's fee, taken from the release to you. Buyers pay nothing extra.
- Who holds the money?
- Tool Index. The buyer pays us, you transfer the assets, the buyer confirms, we release to you. If the deal fails, the buyer is refunded in full. Neither side has to trust the other.
- What can I sell here?
- Any approved tool on Tool Index that you control: SaaS, micro-SaaS, AI tools, browser extensions, mobile apps, newsletters, plugins, Shopify apps, APIs, directories and content sites.
- How are listings reviewed?
- You provide private evidence that you can transfer what you list (registrar, repository, store accounts). An administrator checks it before the listing goes public, and again after any edit.
- How do buyers reach me?
- Through a private conversation on your listing. Offers, counter offers, signatures and the closing all happen inside it.