Why Alps, and how it compares
Plenty of CS tools are good, and several are free. What really differs is whose curriculum you teach. Here’s where Alps fits, and when another tool fits better.
Last checked September 2026. Tell us if we got something wrong.
Three kinds of CS platform
The main differences are who writes the curriculum and who runs the platform.
Commercial platforms
Their own curriculum, sequence and sales team. You teach their course, on their schedule.
Polished, but it’s their course
Open and free tools
Often the best material for the subject, and several are free on Alps. Someone still has to run them for your school.
Great books, but you run them
Alps
Teach the book you already chose — open, licensed or your own — and mix several in one class. Alps adds grading, hints, practice matched to each student, and a replay of the work.
Your book, our platform
Most platforms replace your course
Nearly every CS platform sells its own curriculum. The course is the product. Adopt one and the material you’ve taught for six years gets replaced — or it sits outside the system, where grading and progress never reach it.
That cost lands on teachers. A software decision shouldn’t force you to rebuild a course that works.
Alps runs the course you already teach, with the goal of bringing the benefits of one-on-one tutoring to a full class. The material stays yours.
Mix several books in one class
Most courses use the best chapters from a few books, plus labs your department wrote. Alps puts them all in one course.
An example: one semester of CS1
Units 1–4: Python for Everybody
Free. An intro sequence your students can keep after the course ends.
Units 5–8: Zelle, Python Programming
The object-oriented chapters your department standardized on.
Unit 9: your capstone lab
The project you wrote, now auto-graded like everything else.
Throughout: Nifty Assignments and 10,000+ problems
Added wherever a group needs more practice on a skill.
Your students see one clean course. Your second-period section can see different units than your fourth.
“Why not just use a free textbook?”
Often you should. If an open textbook is working, stick with it — several of them are on Alps because we think they’re the best written for their subject.
The hard part is usually everything around the book. Who signed the privacy agreement. Rostering a section of 140. Getting grades into the gradebook. A coding environment that won’t start on a Chromebook the morning of a test.
A book also can’t see your students. Alps can, even on the free plan: who needs easier practice, who is ready for more, and where each one got stuck.
If you don’t need that, use the free tool. The book will still be free here when you do.
When to choose something else
Another tool may fit your class better. Here’s when.
A full K-12 catalog, one vendor
A full-catalog platform fits better. Alps starts at middle school and doesn’t offer industry certifications.
A free course for your whole school
For AI literacy across your whole student body, the largest nonprofit option is excellent, free and backed by the biggest teacher network.
One graphics-first intro course
If you teach one and love it, the free university-built course does exactly that very well.
Open textbooks you host yourself
If you have the staff, the open-source academy is excellent to run directly. We host several of its books.
The books you already teach, in one class
That’s Alps. Open, licensed and your own books together, with grading, practice, hints and mastery built in, from middle school through college.
What makes Alps different
Your curriculum, not ours
One section can mix chapter 3 of an open textbook, chapter 7 of a licensed title and your own lab. You choose what each section sees.
We also offer a few titles of our own, for material you won’t easily find elsewhere. They’re always free on Alps.
A mastery model trained on real work
Alps estimates each student’s mastery from their own work, then groups your class and sets practice at each group’s level. Recent work counts more, so a rough start won’t follow a student all year. You review every group before students see it.
Included on the free plan.
Help that steps up
A stuck student gets help one step at a time: a hint, then an outline, then the step as a puzzle. It never hands over the answer, and nobody waits until tomorrow.
It works with whichever book you teach from.
Follow each solution from start to finish
Replay a student’s code as it came together and see where they got stuck. On Python and Java, semantic checks show how it was written.
Free on every plan.
Free where the content is open
Open textbooks, automated grading, practice, differentiation and learning analytics are free, enough to run a whole class.
You pay for licensed titles, district administration or a signed agreement.
Published prices
With a free account you generate the quote yourself, on the spot. K-12 is priced per section, per year and higher ed per student, per term, with publisher licenses per student on the same quote. See the pricing page.
Published doesn’t mean cheapest. Several good options are free.
Feature comparison
Features that matter when you choose, including ones Alps doesn’t have.
| Alps | Typical commercial platform | Typical open / free tool | |
|---|---|---|---|
| Teach from your own textbook | ✓ | Rarely | Sometimes |
| Several curricula in one class | ✓ | ✗ | ✗ |
| Licensed publisher titles | ✓ | Some | ✗ |
| Open-textbook catalog | ✓ | Some | ✓ |
| Free tier that runs a whole class | ✓ | Limited | ✓ |
| Published prices | ✓ | Usually through sales | Free |
| Trained mastery model | ✓ | Often claimed, rarely shown | ✗ |
| Class grouped by mastery, for you to review | ✓ | Rarely | ✗ |
| Signed data privacy agreements | ✓ | ✓ | Several do |
| A company to sign a contract with | ✓ | ✓ | ✗ |
| Jupyter notebooks in the browser | ✓ | Limited | Limited |
| Real C++ toolchain | ✓ | Varies | ✗ |
| Cyber range, no VMs | ✓ | Varies | ✗ |
| Full elementary (K-5) curriculum | ✗ | ✓ | Some |
| Industry certifications | ✗ | ✓ | ✗ |
| Subjects beyond computer science | ✗ | Some | Some |
| Self-hostable / open source | ✗ | ✗ | ✓ |
Shaded rows are features Alps doesn’t have.
Where Alps uses language models
Here’s where we stand, without a swipe at anyone else.
We use language models in a few places: generating practice questions, building hints, and grading written work against a rubric. We name them every time.
We don’t train on identifiable student work.
When Alps says a student has mastered a skill, that comes from a model trained on real coursework and checked for calibration.
What we don’t do
Our commitments to your school and your students.
No selling student data
We never sell or broker student data. We never use identifiable student work to train an outside model.
No cheating verdicts
We show you how a solution took shape. We never accuse a student, and we don’t run AI detection.
No claim on your material
You keep ownership of anything you upload or create, and you’re free to teach it anywhere else.
No advertising
No ads on any plan, including the free one.
No marketing trackers or session recording
Where students sign in and work, Alps runs no ad network, tag manager, marketing tags or session recording. It does use a product-analytics service and an error-reporting one. Our privacy policy identifies their providers and the information each receives.
Still deciding?
Book a demo and bring your syllabus. If another tool fits better, we’ll tell you which one.