Mental Math for Work
Business estimates in 3 min
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Mental Math for Work helps you practice quick estimates for meetings, sales calls, planning reviews, product discussions, and case interviews.
Train with business-context drills for gross margin, discounts, KPI, CVR, CPA, SaaS metrics, workload estimates, sales tax estimates, and engineering rough calculations.
Features
- Choose a daily goal of 3, 5, 7, or 10 questions
- Choose practice days and optional reminders at a time that works for you
- See your completed practice days this week
- Role-based courses for sales, PM/PdM, planning, engineering management, retail/e-commerce, case interviews, and basics
- Category practice for the work math you need most
- Estimate OK judgment for practical ranges, not only exact answers
- Weak-point review, time attack, and meeting mode
- Accuracy, speed, estimate OK rate, and category trends
Start with the free daily quest. Premium unlocks category practice, weak-point review, speed training, meeting mode, and detailed progress insights.
Build the number reflexes you need at work, one short session at a time.
Terms of Use: https://shigoto-no-anzan.pages.dev/legal/terms/
Privacy Policy: https://shigoto-no-anzan.pages.dev/legal/privacy/
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Find today's practice and your next practice plan more easily on Home.
- Review your saved days and time, then enable reminders for that plan.
- Clearer number entry guidance and explanations for skipped questions.
- Improved scrolling for longer questions.
The developer, Shota Morioka, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shota Morioka
- Size
- 15.5 MB
- Category
- Education
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium Monthly $1.99
- Premium Lifetime $9.99
- Copyright
- © 2026 Pawlend