We review and update this article regularly as new information becomes available.
Cosmo, formerly known as ClassUp, is a K-12 tutoring app that pairs live 1-on-1 lessons with real teachers alongside an AI study buddy for homework help between sessions. It’s made by Algorithm of Learning Inc. This guide covers what the app actually offers, how its free trial lesson and pricing work, and what to check before signing up.
TL;DR: Cosmo runs full-length, 50-minute live tutoring sessions with human teachers in math, English language arts, and SAT prep, scheduled weekly. Its Cosmo AI study buddy adds homework help, unlimited practice problems, and writing feedback between lessons. The first 1-on-1 lesson is free with no card required, but ongoing pricing isn’t published on the site. You’ll need to book the free session or call the company directly to get a real quote.
What Is Cosmo AI?
Cosmo combines live human instruction with AI-assisted practice. A real teacher leads full 50-minute lessons in math, ELA, or SAT prep, scheduled weekly and recorded so families can review them later. Between sessions, the Cosmo AI study buddy handles homework help, unlimited practice problems, and feedback on writing. The company positions this as “Smart AI, Real Teachers,” with the AI supporting the teacher’s plan rather than replacing the live instruction.
Key Features
- Live 1-on-1 lessons: 50-minute sessions with a human teacher, scheduled weekly and recorded for later review.
- Cosmo AI study buddy: homework help, personalized learning plans, and writing feedback between lessons.
- Unlimited practice problems: math and English language arts practice aligned to the current lesson plan.
- Progress tracking: assessments every 4 lessons with parent reports, and learning plans updated every 8 lessons.
- 24/7 scheduling flexibility: lessons can be booked and rescheduled outside a fixed weekly slot.
Pricing and the Free Trial Lesson
Cosmo advertises a free first 1-on-1 lesson with a free assessment, no credit card required and no commitment to continue. Beyond that trial, the company does not publish per-month or per-lesson pricing on its main site. Getting an actual quote means booking the free lesson or calling their listed sales line. If cost matters to your decision, ask for the exact price and billing terms during that first call. Don’t assume a number from a review site, since tutoring pricing here isn’t posted the way a typical app subscription is.
Is It Safe for Kids?
The app carries a 4+ age rating on the App Store, with in-app controls for age assurance, and it’s rated 4.5 out of 5 stars from 853 ratings. Reviews consistently highlight the human teachers rather than the AI side of the product, with parents describing quick progress within a few weeks. Live sessions involve a real person interacting with a child, so the same general precautions apply as with any online tutoring service. A parent should sit in on the first session and confirm how Cosmo screens and assigns its teachers.
Frequently Asked Questions
Is Cosmo AI free?
The app is free to download, and the first live lesson is free with no card required. Ongoing lessons are paid, but the exact price isn’t published; you get a quote after booking the trial or calling the company.
What subjects does Cosmo cover?
Math, English Language Arts, and SAT test prep, all for K-12 students.
Is Cosmo the same as ClassUp?
Yes. ClassUp rebranded to Cosmo; the app listing still shows “Cosmo (formerly ClassUp)” on the App Store.
Does Cosmo replace a real teacher with AI?
No. Live lessons are taught by human teachers. The Cosmo AI study buddy supplements those lessons with practice and homework help between sessions, it doesn’t run the lessons itself.
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Bottom Line
Cosmo is a live-tutor-first product with AI support layered on top, not a chatbot pretending to be a teacher. That’s reassuring for families who want a real person leading the instruction. The tradeoff is pricing transparency. You won’t find a price list on the site, so budget-conscious parents should get a firm quote during the free trial lesson before assuming what a subscription will cost.
