# Geometry Calculator for School vs MistakeBook

The clearest difference is price: MistakeBook at $1.99 against Geometry Calculator for School's $8.99. MistakeBook also leads on update cadence (monthly vs every 4 months) and iOS requirement (13.0 vs 17.0). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Geometry Calculator for School costs $8.99 and MistakeBook $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Geometry Calculator for School ships an update every 4 months, MistakeBook monthly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Geometry Calculator for School | MistakeBook |
| --- | --- | --- |
| Price | $8.99 | **$1.99** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 122 MB | 26 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rudolf Halmi](https://appshunter.io/developer/484210280) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### Geometry Calculator for School

[App page](https://appshunter.io/ios/app/geometry-calculator-for-school/id6742743672)

This app provides step-by-step solutions and real-time shape previews for geometry problems, including volume, surface area, and perimeter calculations for over 110 shapes. It also features a weight calculator with customizable materials and works offline without ads.

**Highlights:** Step-by-step geometry solutions, Real-time shape previews, Calculations for over 110 geometric shapes, Weight calculator with custom materials, Offline functionality, No advertisements

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206)

Log and review incorrect answers to improve learning. Organize mistakes by subject and topic, and utilize spaced repetition to reinforce weak areas. Track progress with visual charts and daily check-ins for effective test preparation.

**Highlights:** Log mistakes with photos and notes, Organize by subject and custom tags, Spaced repetition review mode, Ebbinghaus forgetting curve schedule, Progress charts and stats dashboard, Data import/export backup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Geometry Calculator for School free?

Geometry Calculator for School costs $8.99, with no in-app purchases.

### Is MistakeBook free?

MistakeBook costs $1.99, with no in-app purchases.

### Do Geometry Calculator for School or MistakeBook have ads?

Neither Geometry Calculator for School nor MistakeBook shows ads.

### Which is updated more often, Geometry Calculator for School or MistakeBook?

Geometry Calculator for School ships an update every 4 months, and MistakeBook monthly. Most recently, Geometry Calculator for School was updated on October 24, 2026 and MistakeBook on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*