Products

Stoodle

Uses AI

World’s Most Powerful AI Tutor

stoodle.ck12.org Google Play Chrome Web StoreEducation / AI Tutoring & Homework Help

AI Benchmark
Desktop
Mobile
Monthly visits
<5K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Free
No monthly subscription pricing
Creators
CK-12 Foundation
@ck12foundation· 57.8K followers
Launched
12y ago
2013-12-15 · Est.

Traffic

Monthly visitsData through Oct 2026

Marketing moves

Launches, search & content, referrals, promotions
X accounts@ck12foundation
  • Launched on Product HuntLaunch

    Instantly teach your friends online in real-time for free.

    Oct 6, 2014 · 12y agoLaunch page

  • Launched on Show HN (7 pts · 3 comments)Launch

    Stoodle - free, collaborative whiteboard built by 3 teens — Hi all, I'm a senior in high school and I recently co-founded Stoodle, a free, realtime whiteboard with voice chat made to help students e…

    Dec 15, 2013 · 12y agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Show HN
2013-12-15Source
Post excerpt:
Hi all, I'm a senior in high school and I recently co-founded Stoodle, a free, realtime whiteboard with voice chat made to help students effectively collaborate and tutor online. I built it Firebase and Twilio (we are getting discounted pricing from both). We are also incubated by the CK12 Foundation. Our press release recently was posted on CNBC and Yahoo!

Store data

Google Play · Chrome Web Store
Flexi AI Tutor & Homework Help
Flexi AI Tutor & Homework Help Google Playv1.0.18Everyone

Al-powered tutor for math, science, chemistry, & more. Test prep & homework help

CK-12 FoundationEducation
Updated 3mo ago
Rating
★ 4.063,792 ratings
Install scale
5,000,000+Min 5M installs
Price & IAP
FreeNo in-app purchases
First released
2024-10-19Store metadata
Rating Distribution (1★–5★)5★ 71% · 1★ 19%
5
71%
4
4%
3
4%
2
2%
1
19%
Store Screenshots (13)
Latest Release Notes (v1.0.18)

Minor improvements

📚 Flexi – The Free AI Tutor for Math, Science & Homework Help! Struggling with math, science, or chemistry? Need tutoring for homework help or test prep? Whether you're in school or just want to improve your learning, Flexi is your free AI tutor—available anytime, anywhere! With Flexi, you get instant tutoring for math, science, and chemistry to boost your grades and master concepts with ease. No more waiting for a teacher or struggling alone—Flexi provides step-by-step explanations for any question! Just snap a picture of your math problem, and Flexi will solve it instantly—for free! No Ads, no in-app purchases. Why Choose Flexi for Free Tutoring & Homework Help? 📸 Snap & Solve: Take a picture of any math problem and get instant solutions. 📚 Instant Answers: Solve any math, science, or chemistry problem in seconds. 🧑‍🏫 Personalized Tutoring: Get expert guidance like a private teacher—for free! ✅ Homework Made Easy: Get step-by-step solutions for schoolwork and assignments. 🔬 Science & Chemistry Help: Learn difficult concepts with clear explanations. 🏆 Improve Your Grades: Get the learning support you need to succeed. How Flexi Helps You Learn for Free ✔️ Math Tutoring – Get help with algebra, calculus, geometry & more. ✔️ Science Tutoring – Master physics, biology & chemistry step by step. ✔️ Snap a Math Problem – Take a picture and let Flexi solve it for you! ✔️ Free AI Tutor for Homework – Solve tough assignments with expert guidance. ✔️ Test Prep & School Support – Ace your quizzes & exams with in-depth explanations. ✔️ 24/7 AI Tutoring – Your AI tutor never takes a break! Built for Every Student Whether you're in high school, middle school, or college, Flexi is designed for learning at any level. Need help from a tutor but don’t have access to one? Flexi works like a teacher in your pocket—and it’s completely free! 100% Free & Always Available ✅ No hidden fees—Flexi is completely free for all students! ✅ Available on any device—study at home, in class, or on the go. ✅ Trusted by millions—over 1.5 million students use Flexi every month! 🚀 Download Flexi now and make schoolwork easier with the best free AI tutor!

Chrome Web Store Chrome Web Store
Update date not synced
Rating
Rating not syncedRating count not synced
New ratings last mo
—
Price & IAP
FreeIAP data not synced
Current version
—Store metadata

Store assets, rating histograms, install tiers, and screenshots are synced from Apple App Store, Google Play, and Chrome Web Store.

Traffic sources

Oct 2026

Traffic breakdown

Channels

No data yet

Countries

No data yet

Search

Domain authority —Domain registered 2006-12-16

No search keyword data for this website yet.

Traffic data: Vaneform

Pricing

Website does not list public plan prices.

Trial: None · Observed 2026-11-09 · Source page

Pages & changes

Tracked since 2014-10-06

Key pages

Weekly snapshots
www.ck12.org/student/ Snapshot 2026-11-09

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

How much website traffic does Stoodle get?
Vaneform estimates <5K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Stoodle and what platforms does it support?
Stoodle is catalogued under AI Tutoring & Homework Help: World’s Most Powerful AI Tutor. Supported platforms: Mobile App, Browser Extension.

Related products in this category

Education / AI Tutoring & Homework Help

These products share a catalog category. Compare customer tasks, features and deployment requirements before treating them as alternatives.