# PowerMath vs Dolphin

The clearest difference is review sentiment: Dolphin at 84% against PowerMath's 20%. Dolphin also leads on rating (4.8 vs 3.9) and in-app purchases (none vs 8). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. PowerMath sells 8 in-app purchases, starting at $1.99 per month. Dolphin asks for nothing beyond the download.

Dolphin holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Dolphin has 1.3K ratings behind it against 186, so its average is the more settled of the two. Written reviews point the same way: 20% of PowerMath's written reviews are positive against 84% of Dolphin's.

PowerMath ships an update every 3 weeks, Dolphin every 2 weeks. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | PowerMath | Dolphin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (186 ratings)](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510/reviews) | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/dolphin-sat-prep/id6748280981/reviews)** |
| Number of ratings | 186 | **1.3K** |
| Positive reviews | 20.0% of reviews | **83.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 266 MB | 229 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nguyen thanh](https://appshunter.io/developer/1481436893) | [PaloAI Inc.](https://appshunter.io/developer/1824977301) |

## What reviewers say

### PowerMath

[App page](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510)

This app offers interactive math practice for students in grades 1-12, covering a wide range of topics from arithmetic to calculus. It provides step-by-step solutions, engaging quizzes, and AI-powered tools to help users improve their math skills and prepare for exams.

**Highlights:** Comprehensive K-12 math curriculum, Step-by-step problem solutions, Interactive math quizzes and games, AI-powered math solver, Graphing and fraction calculators, Personalized learning exercises

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeltaMath Premium Monthly Plan | $1.99 | per month |
| Three Months VIP | $1.99 | per 3 months |
| One Month VIP | $4.99 | per month |
| DeltaMathPremium HalfYear Plan | $5.99 | per 6 months |
| DeltaMath Premium Annual Plan | $9.99 | per year |
| Six Months VIP | $24.99 | per 6 months |
| 1 Year VIP | $49.99 | per year |
| No ads Pack | $14.99 | one-time |


### Dolphin

[App page](https://appshunter.io/ios/app/dolphin-sat-prep/id6748280981)

Master the Digital SAT with a unique, social media-inspired interface. Swipe through thousands of official practice questions with instant, short video explanations. The app intelligently adapts to your learning, focusing on your weak areas for efficient score improvement.

**Highlights:** 10,000+ Official Digital SAT Questions, Short Video Solutions for Every Problem, Personalized Learning Algorithm, Spaced Repetition for Retention, Frictionless Study Design, Score Tracking

**In-app purchases:** none


## Frequently asked questions

### Is PowerMath free?

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

### Is Dolphin free?

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

### Which has better reviews, PowerMath or Dolphin?

Dolphin is rated higher. PowerMath averages 3.9 out of 5 from 186 ratings, while Dolphin averages 4.8 from 1.3K ratings.

### Do PowerMath or Dolphin have ads?

PowerMath shows ads; Dolphin does not.

### Which is updated more often, PowerMath or Dolphin?

PowerMath ships an update every 3 weeks, and Dolphin every 2 weeks. Most recently, PowerMath was updated on October 18, 2026 and Dolphin on October 19, 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.*