# OnePrep vs SatUP!

The clearest difference is in-app purchases: SatUP! at none against OnePrep's 24. SatUP! also leads on ads (none vs shown). OnePrep's advantage is update cadence (every 5 days vs every 10 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OnePrep sells 24 in-app purchases, starting at $28.49 per 7 days. SatUP! asks for nothing beyond the download.

OnePrep ships an update every 5 days, SatUP! every 10 days. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OnePrep | SatUP! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (714 ratings)](https://appshunter.io/ios/app/oneprep-sat-and-act-prep/id6755932961/reviews)** | — |
| Number of ratings | **714** | — |
| Positive reviews | 40.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 88 MB | 27 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MyDojo Inc.](https://appshunter.io/developer/1854476769) | [Silly Monkey Studios](https://appshunter.io/developer/493342079) |

## What reviewers say

### OnePrep

[App page](https://appshunter.io/ios/app/oneprep-sat-and-act-prep/id6755932961)

Prepare for the SAT with a comprehensive study tool. Access thousands of practice questions, realistic mock exams, and AI-powered feedback. Get personalized guidance from an AI tutor to identify and improve weak areas for your dream score.

**Highlights:** Thousands of SAT-style practice questions, Realistic timed mock exams, Instant AI feedback and grading, Personalized study guidance, Progress tracking, Cross-device compatibility

**In-app purchases (24)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnePrep Pro (1 Week) | $28.49 | per 7 days |
| OnePrep Plus (1 month) | $89.99 | per month |
| OnePrep Pro (1 Month) | $99.99 | per month |
| OnePrep Pro – Monthly | $99.99 | per month |
| OnePrep Plus (3 months) | $239.00 | per 3 months |
| OnePrep Pro (3 Months) | $269.00 | per 3 months |
| OnePrep Pro – 3 Months | $269.00 | per 3 months |
| OnePrep Plus (6 months) | $354.99 | per 6 months |
| OnePrep Pro (6 Months) | $414.99 | per 6 months |
| OnePrep Pro – 6 Months | $414.99 | per 6 months |
| OnePrep Plus (1 year) | $469.00 | per year |
| OnePrep Pro (1 Year) | $589.00 | per year |
| OnePrep Pro – Yearly | $589.00 | per year |
| OnePrep Plus Exam Pass (8-14 Days) | $80.00 | one-time |
| OnePrep Plus Exam Pass (15-28 Days) | $85.00 | one-time |
| OnePrep Pro Exam Pass (0-7 Days) | $89.00 | one-time |
| OnePrep Pro Exam Pass (8-14 Days) | $90.00 | one-time |
| OnePrep Pro Exam Pass (15-28 Days) | $95.00 | one-time |
| OnePrep Pro Exam Pass (29-30 Days) | $99.00 | one-time |
| OnePrep Pro Exam Pass (31-44 Days) | $134.99 | one-time |
| OnePrep Pro Exam Pass (45-58 Days) | $174.99 | one-time |
| OnePrep Pro Exam Pass (59-72 Days) | $209.99 | one-time |
| OnePrep Plus Exam Pass (8-10 Mos) | $429.00 | one-time |
| OnePrep Plus Exam Pass (10+ Months) | $464.99 | one-time |


### SatUP!

[App page](https://appshunter.io/ios/app/satup/id6757409537)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnePrep free?

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

### Is SatUP! free?

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

### Do OnePrep or SatUP! have ads?

OnePrep shows ads; SatUP! does not.

### Which is updated more often, OnePrep or SatUP!?

OnePrep ships an update every 5 days, and SatUP! every 10 days. Most recently, OnePrep was updated on October 28, 2026 and SatUP! on October 11, 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.*