# Math Ref Lite vs Pearl Diver HD

The clearest difference is rating: Math Ref Lite at 4.6 against Pearl Diver HD's 1.5. Math Ref Lite also leads on update cadence (every 2 months vs every 20 months) and ratings volume (7 vs 2). Pearl Diver HD's advantage is in-app purchases (none vs 5) and review sentiment (71% vs 61%). On price, ads and device support there is nothing between them.

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

Math Ref Lite holds the better App Store score, 4.6 against 1.5. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews complicate that: 61% of Math Ref Lite's written reviews are positive against 71% of Pearl Diver HD's, so the app with the better star average is not the one people write more warmly about.

Math Ref Lite ships an update every 2 months, Pearl Diver HD every 20 months. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Math Ref Lite | Pearl Diver HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/math-ref-lite/id312756358/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/pearl-diver-hd/id364617763/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | 61.3% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 65 MB | 28 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Happy Maau Studios, LLC](https://appshunter.io/developer/301384060) | [New Mexico State University Board of Regents](https://appshunter.io/developer/337567846) |

## What reviewers say

### Math Ref Lite

[App page](https://appshunter.io/ios/app/math-ref-lite/id312756358)

Access a sample of over 700 essential math formulas, figures, tips, and examples across various subjects. This educational tool is ideal for students, teachers, and professionals needing quick math references.

**Highlights:** Over 700 math formulas, figures, and examples, Tools from Algebra to Physics, Search functionality, Print support for equations, Editable notes, Multiple math categories

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Full Unlock | $1.99 | one-time |
| Great Tip | $2.99 | one-time |
| Awesome Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |

**What reviewers like**

- 👍 Great reference app
- 👍 Handy for homework
- 👍 Useful for students
- 👍 Comprehensive information
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Not working after updates
- 🐛 Incompatible with older devices
- 🐛 Poor definitions/errors
- 🐛 Lacks examples

**Reported bugs**

- App not supported on iPhone 5
- App not compatible with iPad 4 after update
- App crashes on launch for iPad Air
- App crashes often
- Update not initiating

**Requested features**

- Add language option
- Include physics equations
- Add more examples
- Add a search function
- Option to copy formulas


### 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


## Frequently asked questions

### Is Math Ref Lite free?

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

### Is Pearl Diver HD free?

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

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

Math Ref Lite is rated higher. Math Ref Lite averages 4.6 out of 5 from 7 ratings, while Pearl Diver HD averages 1.5 from 2 ratings.

### Do Math Ref Lite or Pearl Diver HD have ads?

Neither Math Ref Lite nor Pearl Diver HD shows ads.

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

Math Ref Lite ships an update every 2 months, and Pearl Diver HD every 20 months. Most recently, Math Ref Lite was updated on October 31, 2026 and Pearl Diver HD on November 1, 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.*