# Finding niches, Method 5: SaaS and AI tool marketplaces (/docs/niche-research/finding-niches/finding-niches-saas-and-ai-tools)

---
type: Document
title: "Finding niches, Method 5: SaaS and AI tool marketplaces"
description: "Reverse-engineering profitable SaaS, AI-tool, and app niches from marketplaces built for that stack: Acquire.com, Product Hunt, AppSumo, and the Chrome Web Store."
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*Taught by Sir Tanveer Nandla.*

The marketplace-reverse-engineering method (see [Finding niches, Method 1](finding-niches-marketplaces.md))
extends to SaaS, AI tools, and apps too; it just needs a different set of
marketplaces, since Flippa and Empire Flippers skew toward content
sites.

## Acquire.com

The SaaS equivalent of Flippa: a marketplace for buying and selling startups
and SaaS products.

1. Browse listings and screenshot ones that look promising.
2. Give the screenshot to ChatGPT or Claude and ask it to identify the
   product (its name or URL) or, if it can't, to describe a business that
   would replicate the same idea.
3. Once you have a URL (found or replicated), reverse-engineer it: check
   where its traffic actually comes from.

## Product Hunt

Browse for launched product ideas. As with Acquire.com, giving Product Hunt's
URL (or a specific listing) to an AI assistant and asking it to find
replicable products works as a shortcut to manual browsing.

## AppSumo

Browse lifetime-deal products. The useful signal here is in the **reviews**:
a product with a mix of 3 to 4 star reviews usually means real users exist but
have an unresolved complaint. A 5-star product has no visible gap left to
build into, and a 1-star product usually means the whole idea is broken, not
just one feature of it. A 3 to 4 star spread is the sweet spot: real paying
demand, with a specific, nameable flaw. That gap, the specific issue
reviewers keep raising, is the opportunity: build a version that fixes it,
and it can be sold on the same platform to the same audience already looking
for it.

## Chrome Web Store

Browsing extensions surfaces a similar range of small, focused product ideas
worth validating the same way: an extension is typically small enough in
scope that a gap in one is quick to spot and quick to rebuild without it.

## Shopify app ideas

The Shopify app ecosystem is another source of product niches: every store
owner on the platform is a potential buyer for a tool that solves one
specific operational problem, which makes it a different kind of marketplace
from the first three (a real installed user base already paying for
software, rather than websites being bought and sold outright). Ask an AI
assistant to help identify demand and gaps for a Shopify app idea before
building one.

## Class infographic

![Infographic: Finding niches, Method 5: SaaS and AI tool marketplaces](finding-niches-saas-and-ai-tools-infographic.webp)