Nabla · House #28,349

What it is

Calls itself “university math”.

• Calls itself: university math

“Duolingo for university math, checked by a real CAS”

Where it puts itself

Its one line of difference: “Every answer is verified by SymPy, a computer algebra system, never guessed by an AI.”

“Every answer is verified by SymPy, a computer algebra system, never guessed by an AI.”

“No account, no network, no surprise.”

What it costs

Has a free plan. No monthly plan.

• Monthly: no
• Free plan: yes

“Free to start · no account · works offline”

“Free on iOS and Android.”

Who it sells to

Sells to consumers. Made for STEM students.

• Sells to: consumers
• Made for: STEM students

“For engineering & STEM students”

How it runs

A mobile app for Android and iOS. Runs locally and works offline. Distributed through the App Store and Play Store. AI is a side feature.

• Kind: mobile
• Runs on: Android · iOS
• Runs where: on the device, offline
• Distributed via: App Store · Play Store
• AI role: a side feature

“Free on iOS and Android.”

“Frozen, then shipped offline — the whole bank lives inside the app.”

What it works with

Runs inside Android and iOS. Names Apple, Del and 3 more on its pages.

• Runs inside: Android · iOS
• Names: Apple · Del · Google Play · +2

“Free on iOS and Android.”

“Apple and Google Play are trademarks of their owners.”

What it offers as proof

Live, no waitlist. Claims “1,538 verified problems”. Try it without signing up.

• Number claimed: 1,538 verified problems
• Trial asks for: nothing

“…no account”

“1,538 verified problems”