# Upgrade Campus vs Dolphin

Upgrade Campus and Dolphin are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Upgrade Campus ships an update every 3 weeks, Dolphin every 2 weeks. The most recent releases landed on September 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Upgrade Campus | Dolphin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/dolphin-sat-prep/id6748280981/reviews)** |
| Number of ratings | — | **1.3K** |
| Positive reviews | — | 83.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 69 MB | 229 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Team Upgrade Korea Corp.](https://appshunter.io/developer/1753241688) | [PaloAI Inc.](https://appshunter.io/developer/1824977301) |

## What reviewers say

### Upgrade Campus

[App page](https://appshunter.io/ios/app/upgrade-campus/id6504674876)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Upgrade Campus free?

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

### Is Dolphin free?

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

### Do Upgrade Campus or Dolphin have ads?

Neither Upgrade Campus nor Dolphin shows ads.

### Which is updated more often, Upgrade Campus or Dolphin?

Upgrade Campus ships an update every 3 weeks, and Dolphin every 2 weeks. Most recently, Upgrade Campus was updated on September 22, 2026 and Dolphin on October 16, 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.*