# SAT Math Prep vs Readojo

The clearest difference is update cadence: Readojo at every 3 days against SAT Math Prep's weekly. SAT Math Prep's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SAT Math Prep sells 2 in-app purchases, starting at $3.99 per 7 days and Readojo sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

SAT Math Prep ships an update weekly, Readojo every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SAT Math Prep | Readojo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sat-math-prep-act-and-calculus/id6799845441/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 26 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anul Agarwal](https://appshunter.io/developer/1515910661) | [Eli Bunimovich](https://appshunter.io/developer/985771065) |

## What reviewers say

### SAT Math Prep

[App page](https://appshunter.io/ios/app/sat-math-prep-act-and-calculus/id6799845441)

Prepare for standardized math tests and build confidence with adaptive practice. This app offers generated questions, hints, and detailed solutions across a wide range of math topics, from arithmetic to calculus. Track your progress and master skills through various practice modes.

**Highlights:** Adaptive difficulty based on mastery, Generated questions with instant feedback, Hints and worked solutions, Progress tracking and mistake journal, Multiple practice modes (Zen, Timed, Until Error), Exam-specific practice paths

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Pro Weekly | $3.99 | per 7 days |
| Math Pro Lifetime | $14.99 | one-time |


### Readojo

[App page](https://appshunter.io/ios/app/readojo-learn-languages/id6800397160)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $7.99 | per month |
| Pro Plan | $9.99 | per month |


## Frequently asked questions

### Is SAT Math Prep free?

SAT Math Prep is free to download, with in-app purchases available.

### Is Readojo free?

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

### Do SAT Math Prep or Readojo have ads?

Neither SAT Math Prep nor Readojo shows ads.

### Which is updated more often, SAT Math Prep or Readojo?

SAT Math Prep ships an update weekly, and Readojo every 3 days. Most recently, SAT Math Prep was updated on October 25, 2026 and Readojo on October 24, 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.*