# Keystone Alg I Practice Tests vs Keystone Exam Prep

The clearest difference is price: Keystone Exam Prep at Free against Keystone Alg I Practice Tests's $0.99. Keystone Alg I Practice Tests's advantage is in-app purchases (none vs 10) and update cadence (every 2 months vs every 7 months). On rating, ads and device support there is nothing between them.

Keystone Exam Prep is free to download; Keystone Alg I Practice Tests costs $0.99 up front. Keystone Exam Prep sells 10 one-off in-app purchases. Keystone Alg I Practice Tests asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 2.0 for Keystone Alg I Practice Tests against 2.0 for Keystone Exam Prep. That said, the two scores are not equally well evidenced: Keystone Alg I Practice Tests has 7 ratings behind it against 1, so its average is the more settled of the two.

Keystone Alg I Practice Tests ships an update every 2 months, Keystone Exam Prep every 7 months. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Keystone Alg I Practice Tests | Keystone Exam Prep |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.0 (7 ratings)](https://appshunter.io/ios/app/keystone-alg-i-practice-tests/id795334519/reviews) | [2.0 (1 ratings)](https://appshunter.io/ios/app/keystone-exam-prep-live-app/id6465206824/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 145 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iPREPpress LLC](https://appshunter.io/developer/390888386) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### Keystone Alg I Practice Tests

[App page](https://appshunter.io/ios/app/keystone-alg-i-practice-tests/id795334519)

Prepare for your Algebra I exam with realistic practice tests. This app offers 120 multiple-choice questions across two tests, complete solutions, and helpful tools like a calculator and formula sheet to boost your confidence.

**Highlights:** 120 multiple-choice questions, Two practice tests with modules, Complete solutions provided, Formula sheet and calculator, Question navigator and flagging, Scoring with estimated Keystone score, Optional timer for time management

**Features:** macOS Compatibility

**In-app purchases:** none


### Keystone Exam Prep

[App page](https://appshunter.io/ios/app/keystone-exam-prep-live-app/id6465206824)

Prepare for competitive exams with extensive mock tests and practice questions. Access daily current affairs, quizzes, and detailed performance analysis. Offers multilingual support for a personalized learning experience.

**Highlights:** Mock tests for competitive exams, 50,000+ practice questions, Daily current affairs, Daily free quizzes, Detailed performance analysis, Multilingual support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - 18900 | $199.99 | one-time |
| Package - 19900 | $199.99 | one-time |
| Package - 21900 | $199.99 | one-time |
| Package - 27900 | $299.99 | one-time |
| Package - 39900 | $399.99 | one-time |
| Package - 44900 | $449.99 | one-time |
| Package - 54900 | $499.99 | one-time |
| Package - 69900 | $699.99 | one-time |
| Package - 79900 | $799.99 | one-time |
| Package - 89900 | $899.99 | one-time |


## Frequently asked questions

### Is Keystone Alg I Practice Tests free?

Keystone Alg I Practice Tests costs $0.99, with no in-app purchases.

### Is Keystone Exam Prep free?

Keystone Exam Prep is free to download, with in-app purchases available.

### Which has better reviews, Keystone Alg I Practice Tests or Keystone Exam Prep?

Keystone Alg I Practice Tests and Keystone Exam Prep are both rated 2.0 out of 5 on the App Store, from 7 and 1 ratings respectively.

### Do Keystone Alg I Practice Tests or Keystone Exam Prep have ads?

Neither Keystone Alg I Practice Tests nor Keystone Exam Prep shows ads.

### Which is updated more often, Keystone Alg I Practice Tests or Keystone Exam Prep?

Keystone Alg I Practice Tests ships an update every 2 months, and Keystone Exam Prep every 7 months. Most recently, Keystone Alg I Practice Tests was updated on October 12, 2026 and Keystone Exam Prep on October 22, 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.*