Comparison

Calculus AI vs Registered Electrical Worker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calculus AI

Features
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Calculus AI - Math Solver turns any calculus problem into a step-by-step solution. Snap a photo of your homework, type a question, or paste an equation - the AI solves it in seconds and shows every step, so you learn the method instead of copying an answer. SOLVE ANY CALCULUS PROBLEM - Limits, continuity, derivatives, integrals, differential equations and their applications - Photo, gallery, typed text, or multi-page crop - works with handwritten homework and textbook pages - Every solution includes the method, the working steps, the final answer, key concepts and an answer check - Charts rendered automatically for every applicable solution LEARN, DON'T JUST COPY - AI Tutor - a Socratic tutor that guides you to the answer instead of blurting it out - Flashcards - AI-generated study cards with mastery tracking - Quiz - generate practice tests by topic and difficulty, with an explanation for every answer - Cheat Sheet - AI-generated formula reference for each topic - Searchable solution history, favourites, and PDF export for revision BUILT FOR STUDENTS - 32 languages - study calculus in your own language - Dark and light themes - Export to PDF or share with your study group START SOLVING - No account, no ads. Three full solutions are included, then Calculus AI Pro unlocks unlimited solutions, the AI Tutor, Flashcards, Quiz and Cheat Sheets. Privacy: your photos and questions are sent to Google Gemini (Firebase AI Logic) to generate solutions. See our Privacy Policy for details. Calculus AI Pro is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/calcai-privacy/home

About

Registered Electrical Worker

Features
Read full description

A study companion for the Hong Kong Construction Industry Council Trade Test for Grade A Electrical Work (written test), often called the electrician A licence exam. Content is in Traditional Chinese. ORGANISED BY THE OFFICIAL SYLLABUS • Unit 1: Legislation and Code of Practice — Electricity Ordinance and subsidiary regulations, Code of Practice for the Electricity (Wiring) Regulations • Unit 2: Craft, safety and ethics — distribution, cables, wiring and conduits, circuits, protection, inspection and testing, electrical theory • Unit 3: Cable colour identification FEATURES • 1,250 original practice questions checked against the 2025 Code of Practice, with clause references and explanations • Worked calculations for theory questions • Timed mock practice: 100 questions in 75 minutes (20 from Unit 1, 80 from Unit 2), scored per unit (70% and 60% required) • Topic practice, wrong-answer book, bookmarks, notes and statistics • Progress sync across devices FREE AND PRO Try some questions free. Pro unlocks unlimited practice for 90 days. Pro is a one-time purchase and does not renew automatically. DISCLAIMER This is an independent study tool, not an official product of the Construction Industry Council or the Electrical and Mechanical Services Department. All questions are original practice material and passing is not guaranteed. Always follow the official announcements: https://www.cic.hk/en/trade-tests/grade-a Terms of Use: https://www.10minquiz.com/zh-hant/terms-of-use Privacy Policy: https://www.10minquiz.com/zh-hant/privacy-policy

Screenshots

Calculus AI4 screens
Registered Electrical Worker4 screens

Verdict

The call

The clearest difference is update cadence: Registered Electrical Worker at every 3 days against Calculus AI's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Calculus AI sells 2 in-app purchases, starting at $4.99 per 7 days and Registered Electrical Worker sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Calculus AI ships an update every 4 weeks, Registered Electrical Worker every 3 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Calculus AI versus Registered Electrical Worker: the parameters behind the verdict, then further details
ParameterCalculus AIRegistered Electrical Worker
PriceFreeFree
Update frequencyEvery 4 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size61 MB68 MB
Age rating4+4+
DeveloperTat Wah ChanPickmy AI

In-app purchases

2 purchases

Calculus AI

Subscriptions2
  • Calculus AI - Smart Solver Weekly3 Days trial$4.997 Days
  • Calculus AI - Smart Solver Yearly3 Days trial$29.991 Year
2 purchases

Registered Electrical Worker

One-time2
  • 90-day Pro Offer$19.99
  • Pro 90 Days$22.99

Questions

Is Calculus AI free?
Calculus AI is free to download, with in-app purchases available.
Is Registered Electrical Worker free?
Registered Electrical Worker is free to download, with in-app purchases available.
Do Calculus AI or Registered Electrical Worker have ads?
Neither Calculus AI nor Registered Electrical Worker shows ads.
Which is updated more often, Calculus AI or Registered Electrical Worker?
Calculus AI ships an update every 4 weeks, and Registered Electrical Worker every 3 days. Most recently, Calculus AI was updated on November 6, 2026 and Registered Electrical Worker on November 10, 2026.

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