# Dolphin vs brAiny

The clearest difference is in-app purchases: Dolphin at none against brAiny's 1. Dolphin also leads on ratings volume (1.3K vs 3). brAiny's advantage is review sentiment (100% vs 83%) and rating (5.0 vs 4.8). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. brAiny sells 1 in-app purchase, starting at $12.99 per month. Dolphin asks for nothing beyond the download.

brAiny holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Dolphin has 1.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 83% of Dolphin's written reviews are positive against 100% of brAiny's.

Dolphin ships an update every 2 weeks, brAiny fortnightly. The most recent releases landed on October 30, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Dolphin | brAiny |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.3K ratings)](https://appshunter.io/ios/app/dolphin-sat-prep/id6748280981/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/brainy-learning-built-for-you/id6778201821/reviews)** |
| Number of ratings | **1.3K** | 3 |
| Positive reviews | 82.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 223 MB | 38 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [PaloAI Inc.](https://appshunter.io/developer/1824977301) | [CHINGTING TU](https://appshunter.io/developer/6778201823) |

## What reviewers say

### Dolphin

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

Build a consistent study habit for SAT and ACT exams with daily practice questions and detailed explanations. Track your progress and focus on areas needing improvement, with optional features to block distracting apps.

**Highlights:** Daily practice questions, Worked explanations, Vocabulary review, Focus Mode for distraction blocking, Progress and streak tracking, Widgets for quick access

**In-app purchases:** none


### brAiny

[App page](https://appshunter.io/ios/app/brainy-learning-built-for-you/id6778201821)

This AI-powered tutor offers personalized explanations for any subject, adapting to your learning style. It uses proven methods like active recall and spaced repetition to build lasting understanding, not just memorization. Track progress, master weak areas, and stay motivated with smart review tools.

**Highlights:** Personalized AI tutoring, Visual learning support, Master weak areas, Smarter review with spaced repetition, Progress tracking and study streaks, Homework and exam preparation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| brAiny Pro | $12.99 | per month |


## Frequently asked questions

### Is Dolphin free?

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

### Is brAiny free?

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

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

brAiny is rated higher. Dolphin averages 4.8 out of 5 from 1.3K ratings, while brAiny averages 5.0 from 3 ratings.

### Do Dolphin or brAiny have ads?

Neither Dolphin nor brAiny shows ads.

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

Dolphin ships an update every 2 weeks, and brAiny fortnightly. Most recently, Dolphin was updated on October 30, 2026 and brAiny on October 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.*