Add More Colors to Calendar

Add More Colors to Calendar

Google Chrome Extension that expands google calendar's customization capabilities. Allows users to add custom hex colors to calendar events on personal and business calendars. Doing 0 marketing currently and grew to over 6,000 users in the last year all from organic webstore traffic. Collected over 8,000 emails from signups where they opt in, so would be newsletter ready. Ranks #2 for the search term "Add More Colors to Google Calendar", current search volume is 15k per month. Open to offers

Visit
All-time revenue
$9,592

Ranked #2011 on TrustMRR

MRR
$41

13 active subscriptions

Founder
JohnJohn
Founded
March 2024
USUnited States

Revenue is verified withStripeStripe API key.Last updated: Nov 15, 2026, 08:27 PM

Startup insights

Tech stack

Backend

Additional info

Scraping failed

Product updates

More startups for sale

View Marketplace
FOR SALE
P

Private Enterprise

Artificial Intelligence

This saas analyzes text to determine whether it was written by AI - such as ChatGPT, Claude, Gemini, or any other LLM. It’s also the perfect tool to humanize AI-generated content, making it read completely human.

Revenue (30d)

$357

14%

Asking Price

$6k

$4k

Multiple

0.9x

FOR SALE
GEHIRN.md

GEHIRN.md

Marketing

The tool u need to win in AI Search.

Revenue (30d)

$386

44%

Asking Price

$22k

$15k

Multiple

3.2x

FOR SALE
P

Private Enterprise

Entertainment

Become the chancellor, win elections, and govern Germany in this political simulation game.

Revenue (30d)

$329

1059%

Asking Price

$5k

Multiple

1.3x

FOR SALE
V

VoiceBrief

Education

VoiceBrief is a SaaS learning platform that turns PDFs, web pages, and text into original-document audio, synced read-along, summaries, quizzes, flashcards, and slides. Customers discover VoiceBrief at voicebrief.io and subscribe to VoiceBrief Pro for $19.99 per month.

Revenue (30d)

$26

91%

Asking Price

$20k

$12k

Multiple

38.7x

FOR SALE
H

Hidden Business

Mobile Apps

A consumer health app in a chronic-condition niche, live on iOS and Android and localized in 5 languages. Growth is fully organic from app store search, with no ad spend. There is no backend and no server cost. Subscriptions and a lifetime plan run through RevenueCat, so the revenue shown here is verified at source. Product details, app name and store links are shared with serious buyers under an NDA.

Revenue (30d)

$1.1k

1374%

Asking Price

$12k

$5k

Multiple

0.4x

FOR SALE
Chart Scanner AI

Chart Scanner AI

Artificial Intelligence

Chart Scanner AI is an AI-powered fintech startup focused on making financial market analysis accessible to everyone. Our mobile app uses artificial intelligence to analyze trading charts, identify market trends, and generate clear, actionable insights in seconds. We combine AI technology with an intuitive user experience to help traders of all experience levels better understand the markets, save time, and make more informed trading decisions.

Revenue (30d)

$3.5k

44650%

Asking Price

$40k

Multiple

0.9x

The database of verified startup revenues

Browse 1,000+ verified startups for sale