The Idea Database

Real businesses with a revenue figure we can source — from founder interviews and our own public-data research. What each one sells, what it earns, how it grew and what it runs on. Newest first.

Ask the data real businesses · real revenue · cited

Matching your filters

7 businesses

86% founder-reported, the rest researched

<$10K

$10K+

$50K+

$100K+

$1M+

Median revenue

$80K /mo

Middle half earn $1K – $300K/mo

How they grow

Business models

Showing 7 ideas

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Revenue

Starting Costs

Immersive italian learning platform

"Immersive Italian language learning platform."

thinkinitalian.com

$7K /mo Reported

Language learning app

Language learning app that makes education fun.

duolingo.com

$4M /mo Estimated

Language exchange hangouts

Mandarin Monkey: Engaging Mandarin learning through videos and podcasts.

mandarinmonkey.com

$1K /mo Reported

Personalized online language tutors

Online language tutoring with native-speaking tutors.

livelingua.com

$100K /mo Reported

Online arabic fluency course

Online platform for mastering Arabic fluency swiftly.

andalusinstitute.com

$80K /mo Reported

Private german lessons online

Private German lessons via Zoom for kids and adults.

marlenajorntutors.wordpress.com

$200 /mo Reported

Online language tutoring platform

Online language tutoring platform for global learners.

languatalk.com

$300K /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.
Immersive italian learning platform thinkinitalian.com "Immersive Italian language learning platform."	$7K /mo Reported	Subscription +2	SEO	Language Learners +2	+3	Founded 2016 · Solo founder · Built in 90 days	77	Build this
Language learning app duolingo.com Language learning app that makes education fun.	$4M /mo Estimated	Subscription +2	Referral Program Great customer service +1	Language Learners +2	CU	Founded 2011 · 650 people · $3M to start	58	Build this
Language exchange hangouts mandarinmonkey.com Mandarin Monkey: Engaging Mandarin learning through videos and podcasts.	$1K /mo Reported	Subscription +4	Organic social media Great customer service +1	Language Learners +3	AD	Founded 2016 · 2 people · Taichung, Taichung, Taiwan, Taiwan, Province of China	61	Build this
Personalized online language tutors livelingua.com Online language tutoring with native-speaking tutors.	$100K /mo Reported	Coaching +1	Affiliate program Email marketing +1	Individuals Seeking Ble... +5	+21	Founded 2009 · 9 people · $60 to start	60	Build this
Online arabic fluency course andalusinstitute.com Online platform for mastering Arabic fluency swiftly.	$80K /mo Reported	Course +3	Word of mouth Advertising on social media +1	Muslims +1	KA +24	Founded 2019 · 11 people · $500 to start	62	Build this
Private german lessons online marlenajorntutors.wordpress.com Private German lessons via Zoom for kids and adults.	$200 /mo Reported	Private lessons +1	Word of mouth Advertising on social media +1	Children Learning German +4	WO +1	Founded 2020 · Solo founder · $300 to start	51	Build this
Online language tutoring platform languatalk.com Online language tutoring platform for global learners.	$300K /mo Reported	Marketplace +6	Pay Per Click Advertising Search engine marketing +1	Language Learners +9	+5	Founded 2017 · Solo founder · Singapore, Singapore, Singapore	60	Build this

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