Unisium Pricing

Build the understanding to solve math and physics problems on your own.

Start your 14-day free trial

Monthly

$30 USD/month

After your trial.
Billed monthly.

Annual

$250 USD/year

After your trial.
Billed annually, in full.

Annual saves $110 compared with 12 monthly payments.

Both plans include a 14-day free trial. A payment method is required at checkout. Billing begins after the trial unless you cancel before it ends. Subscriptions renew automatically until canceled. Checkout shows applicable taxes and the total.

Check current availability to start a trial.

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Practise what independent problem solving takes

Both plans give your study a clear structure: retrieve principles, explain your reasoning, and practise solving. Especially useful when examples make sense but starting alone is harder.

Turn understanding into usable skill

A guided flow through retrieval, connection, explanation, and problem solving

Keep core principles fresh

Spaced retrieval brings principles back for practice over time

Practise starting on your own

Attempt problems first, then use worked solutions to examine your reasoning

Find gaps in your explanations

AI feedback helps you review your answers to principle questions and self-explanations

Built by Vegard Gjerde, whose physics-education research on elaborative encoding, retrieval practice, self-explanation, and problem solving has been published in Physical Review Physics Education Research.

Current subjects

Mathematics

Algebra
Expressions and equations
Functions
Graphs and transformations
Calculus
Limits, derivatives, integrals
Differential equations
Equations involving rates of change

Physics

Classical mechanics
Motion, forces, and energy
Electromagnetism
Electric and magnetic fields

Coverage varies by topic. Have a particular course in mind? Ask about your syllabus.

Personal guidance

Personal study consultation with Vegard

Know what to change in your studying.

$350 USD

60 minutes · One-to-one

Work toward more independent problem solving with feedback on how you actually study. We’ll examine what you do when you get stuck, how you use worked solutions, and what you can do unaided, then identify changes that fit your situation. You don’t need to know the cause of a difficulty before we talk.

With Vegard Gjerde, physics educator and PhD in Physics Education Research.

Includes a one-time $50 discount on an annual Unisium subscription. No subscription required.

Limited availability. I offer a small number of consultations alongside my work on Unisium. Sessions are arranged individually, subject to fit and availability.

Explore the consultation

Subscription questions

How does the controlled rollout work?

Places are limited during this controlled rollout. When places are available, you can choose a plan and start a trial. Once they are filled, registration closes until the next opening. Join the optional mailing list for announcements; joining does not reserve a place.

What does joining the mailing list cost?

Nothing. No payment and no credit card are required to join. Customers see the Terms & Conditions before choosing a paid plan.

Is there a free trial?

Yes. Both plans include a 14-day trial. A payment method is required at checkout, and billing begins after the trial unless you cancel before it ends.

How do renewal and cancellation work?

Subscriptions renew automatically for the same monthly or annual term until canceled. You can manage and cancel through the billing portal. Ordinary cancellation takes effect at the end of the current trial or billing term.

Who handles checkout and payment?

Paddle is the authorized reseller and Merchant of Record. Paddle handles checkout, payment, applicable taxes, invoices, and buyer billing services.

Does canceling delete my account?

No. Subscription cancellation stops future renewal but does not delete your Unisium account. For account-data or deletion requests, email privacy@unisium.io. For billing help or refund requests, read our Refund Policy or email learn@unisium.io.

Will the price change?

These are the current prices: $30 USD/month or $250 USD/year. Prices may increase as Unisium expands. If you subscribe, any price change would apply only to a later billing period, with notice before you are charged.