tierincome
SaaS & apps $100–$1,000

SaaS & apps ideas for $100–$1,000

Pillar: Solo developer income: micro-SaaS, browser extensions, mobile apps, AI-wrapper tools.

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<$100 $100–1K $1K–10K $10K+

5 ideas

Browser Extension as Solo SaaS

One of the most underserved markets in 2026 — Chrome Web Store has 200M+ daily users and shockingly few quality paid extensions in any given vertical.

Passivity
6/10
Time to first $
2-6 months

Custom GPTs and AI agents as a paid product

Build, ship, and monetize custom GPTs / Claude Projects / specialized AI agents on existing marketplaces. The honest economics — when distribution is the moat, not the prompt.

Passivity
6/10
Time to first $
2-6 weeks

API as a service — sell endpoints, not apps

Build a useful API, ship it on RapidAPI plus your own pricing page, and earn metered or subscription revenue from developers building on top of it.

Passivity
7/10
Time to first $
6-14 weeks

WordPress plugin business

Build and sell a paid WordPress plugin to the 40%+ of websites running WordPress. Recurring license revenue with a small, focused buyer audience and a durable technical moat.

Passivity
5/10
Time to first $
8-16 weeks

Discord and Telegram bot SaaS

Build a bot that solves a specific problem for Discord servers or Telegram groups, charge server admins a monthly fee, scale through community word-of-mouth.

Passivity
6/10
Time to first $
4-10 weeks