# Keystone Alg I Practice Tests vs Securly Flex

The clearest difference is review sentiment: Keystone Alg I Practice Tests at 80% against Securly Flex's 10%. Keystone Alg I Practice Tests also leads on rating (2.0 vs 1.2) and iOS requirement (8.0 vs 15.6). Securly Flex's advantage is price (Free vs $0.99) and ratings volume (1.1K vs 7). On update cadence, ads, in-app purchases and device support there is nothing between them.

Securly Flex is free to download; Keystone Alg I Practice Tests costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Keystone Alg I Practice Tests holds the better App Store score, 2.0 against 1.2. That said, the two scores are not equally well evidenced: Securly Flex has 1.1K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 80% of Keystone Alg I Practice Tests's written reviews are positive against 10% of Securly Flex's.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on September 26, 2026.

## The numbers

| Metric | Keystone Alg I Practice Tests | Securly Flex |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (7 ratings)](https://appshunter.io/ios/app/keystone-alg-i-practice-tests/id795334519/reviews)** | [1.2 (1.1K ratings)](https://appshunter.io/ios/app/securly-flex/id1525181723/reviews) |
| Number of ratings | 7 | **1.1K** |
| Positive reviews | **80.0% of reviews** | 10.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 27 MB | 17 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iPREPpress LLC](https://appshunter.io/developer/390888386) | [Securly](https://appshunter.io/developer/1069831297) |

## 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


### Securly Flex

[App page](https://appshunter.io/ios/app/securly-flex/id1525181723)

This app helps schools implement flexible learning periods to enhance student engagement and personalized education. It simplifies the logistical challenges of scheduling, rostering, and managing student choices for these periods, offering more instructional time and diverse learning opportunities.

**Highlights:** Add flex periods to school schedules, Personalized learning opportunities, Agenda notifications, Capacity management, Rostering, Teacher customization of offerings, Student voice and choice

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for school organization
- ✨ Convenient for accessing schedules
- 🙌 Works well at school

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- ⏱️ Slow loading times
- 🔒 Privacy and security concerns
- 🤯 Causes stress and anxiety
- 🙅‍♀️ Restrictive and controlling

**Reported bugs**

- Login issues
- Incorrect schedule information
- Compatibility problems with devices

**Requested features**

- More flexibility in scheduling
- Improved notification system
- Better integration with school systems


## Frequently asked questions

### Is Keystone Alg I Practice Tests free?

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

### Is Securly Flex free?

Securly Flex is free to download, with no in-app purchases.

### Which has better reviews, Keystone Alg I Practice Tests or Securly Flex?

Keystone Alg I Practice Tests is rated higher. Keystone Alg I Practice Tests averages 2.0 out of 5 from 7 ratings, while Securly Flex averages 1.2 from 1.1K ratings.

### Do Keystone Alg I Practice Tests or Securly Flex have ads?

Neither Keystone Alg I Practice Tests nor Securly Flex shows ads.

### Which is updated more often, Keystone Alg I Practice Tests or Securly Flex?

Keystone Alg I Practice Tests ships an update every 2 months, and Securly Flex every 2 months. Most recently, Keystone Alg I Practice Tests was updated on September 26, 2026 and Securly Flex on September 26, 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.*