Idea

Apps So Simple

Apps So Simple Yet So Profitable

Ask the data real businesses · real revenue · cited

Matching your filters

10 businesses

100% founder-reported, the rest researched

<$10K

$10K+

$50K+

$100K+

$1M+

Median revenue

$20K /mo

Middle half earn $10K – $30K/mo

How they grow

Business models

Showing 10 case studies

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Built With

AI Excel formula generator

AI tool that generates Excel formulas instantly

betteranalyst.com

$30K /mo Reported

Telegram flight price tracker

Telegram bot for tracking cheap flight prices.

airtrackbot.com

$8K /mo Reported

Hotel price comparison tool

Browser extension for comparing hotel prices instantly.

ratepunk.com

$50K /mo Reported

Simple payment link generator

Customizable checkout pages that convert

checkoutpage.com

$20K /mo Reported

Freelancer growth newsletter

Freelance growth newsletter for remote workers.

wedoitremotely.com

$500 /mo Reported

Digital travel notebook app

Traveler’s digital scrapbook app for iPad users.

routespunkt-notebook.webflow.io

—

Premium email hosting service

Privacy-focused paid email hosting service.

thexyz.com

$500K /mo Reported

Frontend coding challenge platform

Real coding projects for aspiring developers

frontendmentor.io

$30K /mo Reported

Stoic-inspired graphic apparel

"Stoic-inspired art on graphic tees and stickers."

etsy.com

$10K /mo Reported

Email unsubscribe management tool

"Tool to easily unsubscribe from unwanted emails."

leavemealone.com

$10K /mo Reported

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 Excel formula generator betteranalyst.com AI tool that generates Excel formulas instantly	$30K /mo Reported	SaaS +2	Word of mouth Brand Authenticity +1	Finance Professionals +9	+8	Founded 2022 · Solo founder · $200 to start	87	Build this
Telegram flight price tracker airtrackbot.com Telegram bot for tracking cheap flight prices.	$8K /mo Reported	Affiliate marketing +2	Word of mouth Referral Program +1	Travel Enthusiasts +5	+2	Founded 2017 · Solo founder · Kyiv, Ukraine, Ukraine	81	Build this
Hotel price comparison tool ratepunk.com Browser extension for comparing hotel prices instantly.	$50K /mo Reported	Affiliate marketing +1	Affiliate program Word of mouth +1	Frequent Travelers +3	AD FI +64	Founded 2022 · 20 people · $5K to start	66	Build this
Simple payment link generator checkoutpage.com Customizable checkout pages that convert	$20K /mo Reported	Transaction fees +1	Word of mouth SEO +1	Independent Businesses +5	CU +22	Founded 2018 · 3 people · Built in 30 days	78	Build this
WD Freelancer growth newsletter wedoitremotely.com Freelance growth newsletter for remote workers.	$500 /mo Reported	Subscription +3	Word of mouth Email marketing +1	Freelancers +3	CA	Founded 2018 · Solo founder · Built in 2 days	67	Build this
R Digital travel notebook app routespunkt-notebook.webflow.io Traveler’s digital scrapbook app for iPad users.	—	Subscription +1	Pay Per Click Advertising Outsourcing	Travel Enthusiasts +4	+2	Founded 2021 · Solo founder · $20K to start	76	Build this
Premium email hosting service thexyz.com Privacy-focused paid email hosting service.	$500K /mo Reported	Subscription +1	Affiliate program Word of mouth +1	Small to Medium Enterpr... +6	+3	Founded 2007 · 30 people · $50K to start	64	Build this
Frontend coding challenge platform frontendmentor.io Real coding projects for aspiring developers	$30K /mo Reported	Freemium +1	Word of mouth SEO +1	Beginner Freelancers +9	+10	Founded 2018 · 2 co-founders · $8K to start	77	Build this
Stoic-inspired graphic apparel etsy.com "Stoic-inspired art on graphic tees and stickers."	$10K /mo Reported	E Commerce +3	Word of mouth Direct sales +1	Digital Nomads +2	+8	Founded 2020 · Solo founder · Built in 1 day	63	Build this
Email unsubscribe management tool leavemealone.com "Tool to easily unsubscribe from unwanted emails."	$10K /mo Reported	One-time purchase +4	Word of mouth Referral Program +1	Digital Nomads +5	+22	Founded 2018 · 2 co-founders · $1K to start	79	Build this

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