Dolphin vs Proll
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dolphin
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.
- 10,000+ Official Digital SAT Questions
- Short Video Solutions for Every Problem
- Personalized Learning Algorithm
- Spaced Repetition for Retention
- Frictionless Study Design
- Score Tracking
Read full descriptionHide full description
Build a steady SAT and ACT study habit with Dolphin. Practice in a swipeable feed, work through explanations, and return to the questions and skills that need more attention. PRACTICE A LITTLE EVERY DAY Answer Math, Reading, English, and Science questions, review vocabulary, and set a daily learning goal. UNDERSTAND YOUR ANSWERS Use worked explanations, video solutions where available, and Pip the Tutor to explore a problem. Save questions and revisit mistakes as you study. MAKE ROOM TO FOCUS With your permission, Focus Mode uses Apple's Screen Time controls to block apps you choose on your selected schedule. Complete your lesson goal to unlock them, or take a break when you need one. KEEP YOUR MOMENTUM Track your streak and progress, and add Dolphin widgets to keep your learning goal close by. Dolphin offers optional in-app subscriptions. Features and content availability may vary. SAT is a trademark of the College Board, and ACT is a trademark of ACT, Inc. Dolphin is not affiliated with or endorsed by either organization.
Proll
This app rewards users with screen time for completing real-world tasks, including physical activity and academic work. It locks distracting apps until time is earned, offering customizable goals and optional schedules for focused work sessions.
- Earn screen time by completing tasks
- Task-based app unlocking
- Upload and verify work for rewards
- Physical activity tracking for screen time
- Focus sessions with app locking
- Customizable goals and optional schedules
Read full descriptionHide full description
Key Features: Earn Screen Time Screen time isn’t given—it’s earned. Complete real-world tasks to unlock access to distracting apps. Task-Based Unlocking Earn time by completing activities like SAT questions or other standardized test prep. App Locking Distracting apps stay inaccessible until earned time is available—no bypassing, no “just five more minutes.” Flexible Goals Customize how much work earns how much time, based on your priorities and routines. Minimal, Intentional Design No shame, no pressure—just a clear system that rewards discipline. Proll requires a paid subscription ($4/week or $10/month auto-renewing) to lock distracting apps and access full SAT prep features. 3 Day Free Trial before you commit to the monthly subscription! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Dolphin at none against Proll's 2. Dolphin also leads on ratings volume (1.3K vs 8) and update cadence (every 2 weeks vs every 2 months). Proll's advantage is review sentiment (100% vs 84%). On price, rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Proll sells 2 in-app purchases, starting at $3.99 per 7 days. Dolphin asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Dolphin against 4.9 for Proll. That said, the two scores are not equally well evidenced: Dolphin has 1.3K ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 84% of Dolphin's written reviews are positive against 100% of Proll's.
Dolphin ships an update every 2 weeks, Proll every 2 months. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.
| Parameter | Dolphin | Proll |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.3K ratings) | 4.9 (8 ratings) — better |
| Positive reviews | 83.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.3K — better | 8 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 229 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | PaloAI Inc. | John Edward Baker Bruce |
Customer experience
Dolphin
Proll
In-app purchases
Dolphin
No in-app purchases
Proll
- Proll Plus Weekly$3.997 Days
- Proll Plus Monthly3 Days trial$9.991 Month







