Idea

Apps So Simple

Apps So Simple Yet So Profitable

Ask the data real businesses · real revenue · cited

Matching your filters

5 businesses

80% founder-reported, the rest researched

<$10K

$10K+

$50K+

$100K+

$1M+

Median revenue

$4K /mo

Middle half earn $3K – $7K/mo

How they grow

Business models

Showing 5 case studies

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Built With

AI voice notes organizer

AI voice note app turning thoughts into organized tasks.

talknotes.io

$7K /mo Reported

Appointment alert service

"SMS alerts for fast Global Entry interviews."

globalentryalerts.com

$1K /mo Reported

Customizable task management app

Gamified, subscription-free mobile task management app.

finaletodo.com

$4K /mo Reported

Google Sheets tutorial platform

Google Sheets tutorials and tools for enhanced productivity.

bettersheets.co

$8K /mo Reported

Advanced component library

SaaS UI: React component library for building SaaS apps.

saas-ui.dev

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Idea	Revenue	Model	Growth	Customers	Tools	Details	Solo score A 0–100 estimate of how well-suited a business is to being run solo (or very lean). It blends team leanness, business model, growth channels, capital intensity, revenue per operator, tooling leverage and recency into one score. Higher = more solopreneur-friendly.
AI voice notes organizer talknotes.io AI voice note app turning thoughts into organized tasks.	$7K /mo Reported ▼ 97% · 10 mo	Subscription +2	Advertising on social media SEO	Content Creators +1		Founded 2023 · Solo founder · Built in 6 days	69	Build this
Appointment alert service globalentryalerts.com "SMS alerts for fast Global Entry interviews."	$1K /mo Reported	One time payment	Word of mouth SEO +1	Travelers in the United... +3	+2	Founded 2022 · Solo founder · $10 to start	76	Build this
Customizable task management app finaletodo.com Gamified, subscription-free mobile task management app.	$4K /mo Reported	One time payment +1	Affiliate program Advertising on social media +1	Students +2	FI +15	Founded 2022 · 2 people · Built in 90 days	70	Build this
Google Sheets tutorial platform bettersheets.co Google Sheets tutorials and tools for enhanced productivity.	$8K /mo Reported	Course +2	Advertising on social media Email marketing +1	Scrappy small businesses +3	CA LO +20	Founded 2020 · Solo founder · $100 to start	76	Build this
Advanced component library saas-ui.dev SaaS UI: React component library for building SaaS apps.	—	One-time purchase +6	SEO Organic social media	B2B SaaS Developers +2		Founded 2021 · Solo founder · SaaS	66	Build this

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