# Nerd Dojo: Math Practice — Calculus & linear algebra quiz

> Calculus & linear algebra quiz (iPhone/iPad app by Yung-Hsin Shieh.)

- Source: https://appshunter.io/ios/app/nerd-dojo-math-practice/id6807621723 (this page in markdown: same URL + `.md`)
- Developer: [Yung-Hsin Shieh](https://appshunter.io/developer/6794223212)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 83 MB
- Languages: American English, French (France), German (Germany), Indonesian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish, Thai and 3 more
- Released: 2026-09-22
- Data updated: 2026-11-10

## What is Nerd Dojo?

Make your own practice paper: choice and fill-in questions are graded right on this device, and calculations and proofs can be written out in full with Apple Pencil.
Questions you miss go to your mistake book, and a correction counts only once you pass it.
Built-in practice for calculus, business calculus and linear algebra.

Nerd Dojo is an iPad-first universal iPhone/iPad practice app for individual learners. It brings learning modules, generated practice papers, answers, grading, correction, mistake review, and progress tracking into one clear learning loop.

Start from learning modules, then generate practice papers by subject, unit, question type, difficulty, and points. Choice and fill-in questions can be answered and checked locally. Calculation, proof, and written questions can capture the full solution process, not just the final answer.

Each question can include scratch paper. Use Apple Pencil or your finger to write derivations, calculations, and ideas before returning to the answer flow. For math and STEM practice, this keeps the workflow closer to real problem solving.

After practice, Nerd Dojo helps organize correction tasks, mistake-book entries, learning history, and local progress signals from recent checked attempts so you can choose what to correct, review, or practice next.

AI-assisted grading is optional. If you configure your own AI model or service, the app may send submitted questions, answers, grading criteria, handwriting, or image content to the service you select for grading or feedback. Without an AI service, practice, mistake review, progress, local data, and export tools remain available.

Nerd Dojo is designed for individual learning. Learning data is local-first, API keys are stored using iOS secure storage, and API keys are not included in local backup exports.

iPhone can be used for lighter review, settings, progress, and practice flows. For the best writing and full-page practice experience, iPad with Apple Pencil is recommended.

Subscription details

Nerd Dojo Pro is an auto-renewable subscription, offered monthly and yearly. It removes Nerd Dojo's daily limit of 10 graded submissions; generating papers, the mistake book, learning history and local data stay available on the free plan. The App Store shows the price for your region.

Third-party AI usage is paid by you directly to the provider you choose, and is not included in a Nerd Dojo subscription.

Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; the account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel subscriptions in your App Store account settings after purchase.

Privacy Policy: https://bridgeaiworks.com/privacy/#nerd-dojo
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Nerd Dojo Pro Monthly | $4.99 | per month |
| Nerd Dojo Pro Yearly | $49.99 | per year |


## Is Nerd Dojo safe?

Not enough ratings yet to assess Nerd Dojo.

## Is Nerd Dojo legit?

Nerd Dojo: Math Practice appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Nerd Dojo is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.2.0 — 2026-11-08

Start practising from the first launch: choose a level and answer three questions graded on this device, with no account and no API key. New learners also get their first week with no daily grading limit, and correcting a mistake never counts towards it. After the first week, Free grades 10 answers a day.
New: a grade 8 first-semester maths pack in Traditional Chinese, ten units and 300 questions from special products to quadratic equations, with a note on every wrong option.
After a mistake you see why your choice is wrong and the worked solution; each question opens its chapter review; and Progress exports a one-page progress report PDF to share with a teacher or parent.
The hall now leads with Practice, Mistakes and Practice exam, and adds a day streak, an optional daily practice reminder in Settings, and two Shortcuts: Start today's practice and Open my mistakes.
Clearer text and buttons throughout, dark mode for practice exams, and larger touch targets on the smaller buttons.

### 1.1.2 — 2026-11-04

Calculation questions in mock exams get a full-screen scratch pad: the question stays on top and the pad fills the screen and keeps scrolling. Scratch paper now offers the same paper styles as Notes, and Notes add narrow ruled, mint, sky blue, dot grid and Cornell pages.
Fixes a first stroke that could vanish on a blank exam pad, and handwriting that might not be sent for grading or recognition in dark mode.
Notes get undo/redo, fountain pen, pencil, highlighter, stroke eraser and lasso; suggestions on Progress can be tapped; plus iPhone layout and formula fixes.

### 1.1.0 — 2026-10-22

Bug fixes and performance improvements for a smoother experience.
New Linear Algebra and Business Calculus learning packs (Chinese and English), with review notes, worked examples, solutions and grading criteria.

### 1.0 — 2026-09-22

No release notes.

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## More apps by Yung-Hsin Shieh

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All apps by Yung-Hsin Shieh: https://appshunter.io/developer/6794223212

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*