# PerfectPrep vs Fluid Ink Studio

The clearest difference is price: PerfectPrep at Free against Fluid Ink Studio's $19.99. PerfectPrep also leads on update cadence (fortnightly vs every 11 months) and iOS requirement (13.0 vs 15.1). Fluid Ink Studio's advantage is in-app purchases (none vs 10). On ads and device support there is nothing between them.

PerfectPrep is free to download; Fluid Ink Studio costs $19.99 up front. PerfectPrep sells 8 in-app purchases, starting at $4.99 per 7 days. Fluid Ink Studio asks for nothing beyond the download.

PerfectPrep ships an update fortnightly, Fluid Ink Studio every 11 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | PerfectPrep | Fluid Ink Studio |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[4.6 (878 ratings)](https://appshunter.io/ios/app/perfectprep-act-and-sat-prep/id1524653663/reviews)** | — |
| Number of ratings | **878** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 11 months |
| Monetization | Free with in-app purchases | — |
| Size | 122 MB | 37 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mosaic S.r.l.](https://appshunter.io/developer/570748343) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## 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


### Fluid Ink Studio

[App page](https://appshunter.io/ios/app/fluid-ink-studio/id6730121423)

**In-app purchases:** none


## Frequently asked questions

### Is PerfectPrep free?

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

### Is Fluid Ink Studio free?

Fluid Ink Studio costs $19.99, with no in-app purchases.

### Do PerfectPrep or Fluid Ink Studio have ads?

Neither PerfectPrep nor Fluid Ink Studio shows ads.

### Which is updated more often, PerfectPrep or Fluid Ink Studio?

PerfectPrep ships an update fortnightly, and Fluid Ink Studio every 11 months. Most recently, PerfectPrep was updated on November 3, 2026 and Fluid Ink Studio on November 4, 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.*