# CrazyMinute vs UpperMark eReader

The clearest difference is price: UpperMark eReader at Free against CrazyMinute's $0.99. UpperMark eReader also leads on update cadence (every 2 weeks vs every 16 months). CrazyMinute's advantage is rating (5.0 vs 4.0) and chart position (#195 vs unranked). On ratings volume, ads, in-app purchases and device support there is nothing between them.

UpperMark eReader is free to download; CrazyMinute costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CrazyMinute holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CrazyMinute ships an update every 16 months, UpperMark eReader every 2 weeks. Both last shipped on October 9, 2026.

## The numbers

| Metric | CrazyMinute | UpperMark eReader |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crazyminute/id436009620/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/uppermark-ereader/id1518485408/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#195** | — |
| Size | 3 MB | 112 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dan Dickerman](https://appshunter.io/developer/378175837) | [UpperMark, Inc](https://appshunter.io/developer/1193432095) |

## What reviewers say

### CrazyMinute

[App page](https://appshunter.io/ios/app/crazyminute/id436009620)

**Currently charting:** #195 Top Paid · Education (US App Store)

A fun math quiz designed by educators to help children master basic arithmetic facts. It features a unique interface for easy answer entry and positive reinforcement, with no penalties for incorrect attempts.

**Highlights:** Basic math fact practice, Addition, subtraction, multiplication, division, Customizable problem variations, Unique digitBar™ interface, Positive reinforcement, no penalties, No text, symbol-based interaction

**Features:** macOS Compatibility

**In-app purchases:** none


### UpperMark eReader

[App page](https://appshunter.io/ios/app/uppermark-ereader/id1518485408)

Access study materials and lecture notes for CAIA exam preparation. This app provides comprehensive handbooks, formula sheets, and flashcards to help you learn and retain key concepts efficiently.

**Highlights:** CAIA exam study handbooks, Course lecture notes, FormulaSheet for key equations, Flashcards for keywords and concepts, Preparation for CAIA exams

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

**In-app purchases:** none


## Frequently asked questions

### Is CrazyMinute free?

CrazyMinute costs $0.99, with no in-app purchases.

### Is UpperMark eReader free?

UpperMark eReader is free to download, with no in-app purchases.

### Which has better reviews, CrazyMinute or UpperMark eReader?

CrazyMinute is rated higher. CrazyMinute averages 5.0 out of 5 from 1 ratings, while UpperMark eReader averages 4.0 from 1 ratings.

### Do CrazyMinute or UpperMark eReader have ads?

Neither CrazyMinute nor UpperMark eReader shows ads.

### Which is updated more often, CrazyMinute or UpperMark eReader?

CrazyMinute ships an update every 16 months, and UpperMark eReader every 2 weeks. Most recently, CrazyMinute was updated on October 9, 2026 and UpperMark eReader on October 9, 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.*