# Pearl Diver vs Maphi

The clearest difference is in-app purchases: Pearl Diver at none against Maphi's 4. Pearl Diver also leads on ads (none vs shown) and rating (5.0 vs 4.6). Maphi's advantage is update cadence (fortnightly vs every 20 months) and review sentiment (93% vs 76%). On price and device support there is nothing between them.

Both are free to download. Maphi sells 4 in-app purchases, starting at $2.49 per month. Pearl Diver asks for nothing beyond the download.

Pearl Diver holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Maphi has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 76% of Pearl Diver's written reviews are positive against 93% of Maphi's, so the app with the better star average is not the one people write more warmly about.

Pearl Diver ships an update every 20 months, Maphi fortnightly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Pearl Diver | Maphi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pearl-diver-number-line-math/id337567843/reviews)** | [4.6 (39 ratings)](https://appshunter.io/ios/app/maphi-the-math-app/id1276181580/reviews) |
| Number of ratings | 2 | **39** |
| Positive reviews | 76.2% of reviews | **93.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 72 MB |
| Requires iOS | 17.6 | **10** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [New Mexico State University Board of Regents](https://appshunter.io/developer/337567846) | [Edutapps GmbH](https://appshunter.io/developer/1276181579) |

## What reviewers say

### Pearl Diver

[App page](https://appshunter.io/ios/app/pearl-diver-number-line-math/id337567843)

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

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Maphi

[App page](https://appshunter.io/ios/app/maphi-the-math-app/id1276181580)

This app offers an interactive way to learn and solve mathematical problems. Users can manipulate expressions directly on screen to discover solutions, with a step-by-step guide available for assistance. Gamification elements make the learning process engaging.

**Highlights:** Interactive expression manipulation, Touch, swipe, and drag controls, Step-by-step guidance, Gamification elements, Arithmetic, Variables, Fractions, Linear equations, Derivatives, Integrals

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Maphi Pro 1 Month | $2.49 | per month |
| Maphi Pro 6 Months | $4.99 | per 6 months |
| Maphi Pro 12 Months | $6.99 | per year |
| Maphi Pro Lifetime | $8.99 | one-time |

**What reviewers like**

- 💡 Innovative concept and execution
- 👍 Intuitive and easy to use
- ✨ Visually appealing and good animations
- 🧠 Great for learning and brain training
- 🚀 Fast and snappy performance

**What reviewers complain about**

- 🤏 Difficult to use on small displays
- 💸 Limited free version, paywall for full access
- ❓ Lacks detailed explanations
- ⚖️ Algebra can be overly pedantic

**Reported bugs**

- App freezes on the title screen
- App crashes immediately after starting on iPhone XS Max
- Integration by parts has u-substitution problems

**Requested features**

- More trigonometric functions (csc, sec, cot, arc sin, arc cos, arc tan)
- More calculus content (Calc II, Calc III)
- One-time payment option for premium features
- Randomly generated problems under a time limit
- Daily quizzes


## Frequently asked questions

### Is Pearl Diver free?

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

### Is Maphi free?

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

### Which has better reviews, Pearl Diver or Maphi?

Pearl Diver is rated higher. Pearl Diver averages 5.0 out of 5 from 2 ratings, while Maphi averages 4.6 from 39 ratings.

### Do Pearl Diver or Maphi have ads?

Maphi shows ads; Pearl Diver does not.

### Which is updated more often, Pearl Diver or Maphi?

Pearl Diver ships an update every 20 months, and Maphi fortnightly. Most recently, Pearl Diver was updated on November 1, 2026 and Maphi on November 6, 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.*