# Pearl Diver HD vs Quick Math

The clearest difference is rating: Quick Math at 4.2 against Pearl Diver HD's 1.5. Quick Math also leads on update cadence (every 2 months vs every 20 months) and ratings volume (885 vs 2). Pearl Diver HD's advantage is in-app purchases (none vs 5). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Quick Math sells 5 one-off in-app purchases. Pearl Diver HD asks for nothing beyond the download.

Quick Math holds the better App Store score, 4.2 against 1.5. That said, the two scores are not equally well evidenced: Quick Math has 885 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of Pearl Diver HD's written reviews are positive against 73% of Quick Math's.

Pearl Diver HD ships an update every 20 months, Quick Math every 2 months. The most recent releases landed on June 5, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Pearl Diver HD | Quick Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/pearl-diver-hd/id364617763/reviews) | **[4.2 (885 ratings)](https://appshunter.io/ios/app/quick-math-mental-arithmetic/id1105735200/reviews)** |
| Number of ratings | 2 | **885** |
| Positive reviews | 71.4% of reviews | **73.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 97 MB |
| Requires iOS | 17.6 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [New Mexico State University Board of Regents](https://appshunter.io/developer/337567846) | [Shiny Things](https://appshunter.io/developer/456805308) |

## What reviewers say

### Pearl Diver HD

[App page](https://appshunter.io/ios/app/pearl-diver-hd/id364617763)

Dive into the ocean depths to master the number line, including fractions and decimals, by collecting pearls. This game is designed by educators to align with Common Core standards for grades 3-8.

**Highlights:** Number line mastery, Fractions and decimals, Common Core standards alignment, Progress tracking, Educational game design, Pearl collection gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Quick Math

[App page](https://appshunter.io/ios/app/quick-math-mental-arithmetic/id1105735200)

Practice mental math skills with this innovative app featuring handwriting recognition. It offers exercises in addition, subtraction, multiplication, division, and pre-algebra for students and adults. Track progress and improve arithmetic fluency with adjustable difficulty levels.

**Highlights:** Mental addition, subtraction, multiplication, division, Handwriting recognition for answers, Pre-algebra practice, Adjustable difficulty levels, Individual user profiles, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subtraction | $0.99 | one-time |
| Multiplication | $0.99 | one-time |
| Division | $0.99 | one-time |
| Mixed | $0.99 | one-time |
| Unlock All | $2.99 | one-time |

**What reviewers like**

- 👍 Quick and easy to use
- 🚀 Helps improve math skills
- 💡 Handwriting recognition
- 🤩 Fun and engaging

**What reviewers complain about**

- 💰 Paid features required for full functionality
- 🐛 Issues with number recognition (9s, 7s, 5s)
- 🕰️ Slow response time when writing answers

**Reported bugs**

- Incorrect answers registered
- Handwriting not recognized properly
- Issues with family sharing

**Requested features**

- Option to disable timer
- More customization options
- Progress tracking and reporting
- Ability to focus on specific math operations


## Frequently asked questions

### Is Pearl Diver HD free?

Pearl Diver HD is free to download, with no in-app purchases.

### Is Quick Math free?

Quick Math is free to download, with in-app purchases available.

### Which has better reviews, Pearl Diver HD or Quick Math?

Quick Math is rated higher. Pearl Diver HD averages 1.5 out of 5 from 2 ratings, while Quick Math averages 4.2 from 885 ratings.

### Do Pearl Diver HD or Quick Math have ads?

Neither Pearl Diver HD nor Quick Math shows ads.

### Which is updated more often, Pearl Diver HD or Quick Math?

Pearl Diver HD ships an update every 20 months, and Quick Math every 2 months. Most recently, Pearl Diver HD was updated on June 5, 2026 and Quick Math on September 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.*