# PerfectPrep vs Yolk AI

PerfectPrep and Yolk AI both sit at 4.6 stars, but that hides the real split: 90% of Yolk AI's written reviews are positive against 67% of PerfectPrep's. Yolk AI also leads on update cadence (every 3 days vs fortnightly). PerfectPrep's advantage is ratings volume (878 vs 186) and iOS requirement (13.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. PerfectPrep sells 8 in-app purchases, starting at $4.99 per 7 days and Yolk AI sells 9 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for PerfectPrep against 4.6 for Yolk AI. Both are backed by a comparable volume of ratings — 878 and 186 respectively. Written reviews are what separate them: 67% of PerfectPrep's written reviews are positive against 90% of Yolk AI's.

PerfectPrep ships an update fortnightly, Yolk AI every 3 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PerfectPrep | Yolk AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (878 ratings)](https://appshunter.io/ios/app/perfectprep-act-and-sat-prep/id1524653663/reviews)** | [4.6 (186 ratings)](https://appshunter.io/ios/app/yolk-ai-einstein-ai-method/id6736928388/reviews) |
| Number of ratings | **878** | 186 |
| Positive reviews | 66.7% of reviews | **90.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 122 MB | 58 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Mosaic S.r.l.](https://appshunter.io/developer/570748343) | [App Meets Ai, LLC](https://appshunter.io/developer/1773903809) |

## What reviewers say

### PerfectPrep

[App page](https://appshunter.io/ios/app/perfectprep-act-and-sat-prep/id1524653663)

Prepare for standardized college entrance exams with a personalized study plan, practice tests, and detailed explanations. Track your progress, review concepts with flashcards, and access video lessons to boost your score. Get expert tips and predictions to ace your ACT or SAT.

**Highlights:** Personalized study plans, Subject-specific practice tests, Full practice exams, Detailed answer explanations, Flashcards for concept review, Video lessons and tutorials, Progress tracking and score prediction

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PerfectPrep Premium 1 Week | $4.99 | per 7 days |
| PerfectPrep Premium 1 Month | $9.99 | per month |
| PerfectPrep Premium 1 Month | $9.99 | per month |
| PerfectPrep Premium 1 Month | $9.99 | per month |
| PerfectPrep Premium 1 Month | $14.99 | per month |
| PerfectPrep Premium 6 Months | $19.99 | per 6 months |
| PerfectPrep Premium 6 months | $39.99 | per 6 months |
| PerfectPrep Premium 6 Months | $39.99 | per 6 months |

**What reviewers like**

- 👍 Good app for SAT prep
- 👍 Easy to use with many useful features
- 👍 Helpful for studying and preparing for the SAT
- 👍 Great for students and anyone taking the SAT
- 👍 Awesome app

**What reviewers complain about**

- 🐛 Incorrect content and errors in practice questions
- 🐛 Software bugs and issues with practice tests
- 💰 Not completely free, some features require payment
- 🐛 Answers marked wrong even though they are correct

**Reported bugs**

- Constant notifications despite disabling them
- Time limits not accurate for practice tests
- Many typos in the app

**Requested features**

- Dark mode option
- More free practice content


### Yolk AI

[App page](https://appshunter.io/ios/app/yolk-ai-einstein-ai-method/id6736928388)

This app acts as a study companion, leveraging AI to help users understand and explain complex topics. It provides instant, step-by-step solutions to problems and creates personalized study guides to reinforce learning. Users can even convert their notes into podcasts for on-the-go listening.

**Highlights:** Instant AI solutions to problems, AI-powered study guides, Convert notes to podcasts, Feynman technique for comprehension, Supports various standardized tests, Covers multiple academic subjects

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Weekly Unlimited $3.99 | $3.99 | per 7 days |
| Monthly Unlimited Plan | $9.99 | per month |
| Monthly Unlimited Plan | $10.99 | per month |
| Monthly | $10.99 | per month |
| Monthly Unlimited Plan | $12.99 | per month |
| Monthly Unlimited Plan $12.99 | $12.99 | per month |
| 6 Month Unlimited Access | $49.99 | per 6 months |
| 6 Month | $49.99 | per 6 months |

**What reviewers like**

- 👍 Helpful for studying
- 🚀 Efficient problem-solving
- 💡 Great for test preparation
- 👍 Organized and easy to use

**What reviewers complain about**

- 💰 Expensive for some users
- 🐛 Occasional technical issues

**Reported bugs**

- Login screen freezes
- Incompatible with older devices

**Requested features**

- Add more practice questions
- Ability to upload and organize notes
- Option to record lectures
- Customizable styles and themes


## Frequently asked questions

### Is PerfectPrep free?

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

### Is Yolk AI free?

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

### Which has better reviews, PerfectPrep or Yolk AI?

PerfectPrep is rated higher. PerfectPrep averages 4.6 out of 5 from 878 ratings, while Yolk AI averages 4.6 from 186 ratings.

### Do PerfectPrep or Yolk AI have ads?

Neither PerfectPrep nor Yolk AI shows ads.

### Which is updated more often, PerfectPrep or Yolk AI?

PerfectPrep ships an update fortnightly, and Yolk AI every 3 days. Most recently, PerfectPrep was updated on November 3, 2026 and Yolk AI on October 30, 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.*