Terms & Conditions

Last updated 13 November 2026

These terms govern your use of the ScaleMySystems website and service (the “service”), provided by ScaleMySystems (“we”, “us”). By using the service or buying credits you agree to them.

What the service is

ScaleMySystems is an educational system design simulator. Components mimic behaviour from the settings you choose; they do not run real databases, models or networks. Results show how the configured design behaves. They do not predict, certify or guarantee the performance, cost or security of a real system.

Accounts

You sign in with Google. You must be at least 18, or use the service with the consent of a parent or guardian. Keep your account secure; you are responsible for activity under it. One person may hold one account.

Credits

• Credits are a prepaid balance used only on this website. They have no cash value outside it and cannot be transferred or exchanged for money, except through a refund under the Cancellation & Refund Policy.
• 6 problems are free. Any other problem is unlocked once with credits (Easy 10, Medium 15, Hard 25); everything inside an unlocked problem is then free. On a blank canvas, components and some actions cost credits. AI answers and reviews cost credits.
• The credit price of every action is shown before you use it.
• New accounts receive 100 welcome credits once. Welcome credits have no cash value and are not refundable.

Payments

• Credit packs are one-time purchases. There are no subscriptions and nothing renews or charges you again.
• Prices are shown on the pricing page and on each pack before you pay: in Indian rupees in India and in US dollars elsewhere. The amount shown is the amount charged.
• Payments are processed by Razorpay. We never see or store your card, UPI or bank details. Razorpay emails the receipt.
• Credits are delivered to your account as the Shipping & Delivery Policy describes.

Acceptable use

Do not attempt to break, overload or reverse-engineer the service, get around its limits, create accounts to collect welcome credits, resell access, or use attack simulations for anything other than defensive learning. Attack traffic in the simulator is abstract and labelled; it contains no real exploit payloads. We may suspend accounts that break these rules; unused purchased credits on a suspended account are refunded unless the purchase itself was fraudulent.

Your content

You own your designs and notes. You let us store and process them to provide the service. We do not use your content to train models.

AI features

AI explanations cite numbers from your simulation runs and may still be wrong about recommendations. Verify important decisions independently.

Changes and availability

We may change the service, its prices or these terms. Price changes never affect credits you have already bought. We will show the date of the latest version at the top of this page. We aim to keep the service available but do not guarantee uninterrupted access.

Liability

The service is provided as is. To the extent the law allows, our total liability is limited to the amount you paid us in the 12 months before the claim.

Governing law and disputes

These terms are governed by the laws of India. Disputes are subject to the exclusive jurisdiction of the courts where the operator is registered. Please contact us first: most problems are settled by email.

Contact

For questions about these terms, use the contact page. We reply by email.