# DSST Information Systems Prep vs DSST Test Prep 2026

The clearest difference is price: DSST Test Prep 2026 at Free against DSST Information Systems Prep's $1.99. DSST Test Prep 2026 also leads on iOS requirement (15.1 vs 18.0). DSST Information Systems Prep's advantage is in-app purchases (none vs 9). On update cadence, ads and device support there is nothing between them.

DSST Test Prep 2026 is free to download; DSST Information Systems Prep costs $1.99 up front. DSST Test Prep 2026 sells 9 in-app purchases, starting at $7.99 per 7 days. DSST Information Systems Prep asks for nothing beyond the download.

DSST Information Systems Prep ships an update every 5 months, DSST Test Prep 2026 every 6 months. The most recent releases landed on November 1, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | DSST Information Systems Prep | DSST Test Prep 2026 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/dsst-test-prep-2026/id6751707658/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 49 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Feraco media Inc.](https://appshunter.io/developer/497957884) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### DSST Information Systems Prep

[App page](https://appshunter.io/ios/app/dsst-information-systems-prep/id957408487)

**Features:** macOS Compatibility

**In-app purchases:** none


### DSST Test Prep 2026

[App page](https://appshunter.io/ios/app/dsst-test-prep-2026/id6751707658)

Prepare for DANTES Subject Standardized Tests (DSST) with comprehensive study materials, an extensive question bank, and detailed explanations. Track your progress, create customizable study plans, and take simulated exams to build confidence and earn college credit.

**Highlights:** Up-to-date content for 2026 exams, Extensive question bank with hundreds of questions, Detailed explanations for each question, Progress tracking to identify strengths and weaknesses, Customizable study plans, Simulated exam mode, Continuous updates

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DSST Weekly Full Access | $7.99 | per 7 days |
| DSST Monthly Full Access | $17.99 | per month |
| DSST Monthly Full Access | $17.99 | per month |
| DSST Quarterly Full Access | $40.99 | per 3 months |
| DSST Quarterly Full Access | $40.99 | per 3 months |
| DSST Semiannual Full Access | $69.99 | per 6 months |
| DSST Semiannual Full Access | $69.99 | per 6 months |
| DSST Annual Full Access | $104.99 | per year |
| DSST Annual Full Access | $104.99 | per year |


## Frequently asked questions

### Is DSST Information Systems Prep free?

DSST Information Systems Prep costs $1.99, with no in-app purchases.

### Is DSST Test Prep 2026 free?

DSST Test Prep 2026 is free to download, with in-app purchases available.

### Do DSST Information Systems Prep or DSST Test Prep 2026 have ads?

Neither DSST Information Systems Prep nor DSST Test Prep 2026 shows ads.

### Which is updated more often, DSST Information Systems Prep or DSST Test Prep 2026?

DSST Information Systems Prep ships an update every 5 months, and DSST Test Prep 2026 every 6 months. Most recently, DSST Information Systems Prep was updated on November 1, 2026 and DSST Test Prep 2026 on November 12, 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.*