# OLSAT Trainer Pro vs Java Data Structures Pro

The clearest difference is price: Java Data Structures Pro at $4.99 against OLSAT Trainer Pro's $9.99. OLSAT Trainer Pro's advantage is iOS requirement (12.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

OLSAT Trainer Pro costs $9.99 and Java Data Structures Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OLSAT Trainer Pro ships an update every 2 months, Java Data Structures Pro every 3 months. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OLSAT Trainer Pro | Java Data Structures Pro |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/olsat-trainer-pro/id1607687989/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | — |
| Size | 75 MB | 18 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Polemics Applications LLC](https://appshunter.io/developer/482504032) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### OLSAT Trainer Pro

[App page](https://appshunter.io/ios/app/olsat-trainer-pro/id1607687989)

Prepare for gifted and talented tests with this comprehensive training app. It enhances reasoning and problem-solving skills for students in Kindergarten through sixth grade, covering all OLSAT test levels and question types with adaptive quizzes and detailed explanations.

**Highlights:** Comprehensive OLSAT test preparation, Covers all 15 essential OLSAT areas, Adaptive quizzes with immediate feedback, Detailed answer explanations, Progress tracking system, Full-color graphics, Tips and methods for question categories

**Features:** macOS Compatibility

**In-app purchases:** none


### Java Data Structures Pro

[App page](https://appshunter.io/ios/app/java-data-structures-pro/id6756707292)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OLSAT Trainer Pro free?

OLSAT Trainer Pro costs $9.99, with no in-app purchases.

### Is Java Data Structures Pro free?

Java Data Structures Pro costs $4.99, with no in-app purchases.

### Do OLSAT Trainer Pro or Java Data Structures Pro have ads?

Neither OLSAT Trainer Pro nor Java Data Structures Pro shows ads.

### Which is updated more often, OLSAT Trainer Pro or Java Data Structures Pro?

OLSAT Trainer Pro ships an update every 2 months, and Java Data Structures Pro every 3 months. Most recently, OLSAT Trainer Pro was updated on September 24, 2026 and Java Data Structures Pro on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*