# DSST Information Systems Prep vs EEI MASS Test Prep 2026

The clearest difference is price: EEI MASS Test Prep 2026 at Free against DSST Information Systems Prep's $1.99. EEI MASS 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.

EEI MASS Test Prep 2026 is free to download; DSST Information Systems Prep costs $1.99 up front. EEI MASS Test Prep 2026 sells 9 in-app purchases, starting at $8.99 per 7 days. DSST Information Systems Prep asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 1, 2026 and November 14, 2026 respectively.

## The numbers

| Metric | DSST Information Systems Prep | EEI MASS Test Prep 2026 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/eei-mass-test-prep-2026/id6748535880/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 55 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) | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) |

## 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


### EEI MASS Test Prep 2026

[App page](https://appshunter.io/ios/app/eei-mass-test-prep-2026/id6748535880)

Prepare for the EEI MASS Power Plant Maintenance exam with up-to-date study materials, extensive question banks, and detailed explanations. Track your progress, create custom study plans, and take simulated exams to build confidence and improve your score.

**Highlights:** Up-to-date for 2026 exam format, Extensive question bank with explanations, Progress tracking and customizable study plans, Simulated exam mode, User-friendly interface, Proven test-taking strategies

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MASS Weekly Full Access | $8.99 | per 7 days |
| MASS Monthly Full Access | $24.99 | per month |
| MASS Monthly Full Access | $24.99 | per month |
| MASS Quarterly Full Access | $59.99 | per 3 months |
| MASS Quarterly Full Access | $59.99 | per 3 months |
| MASS Semiannual Full Access | $79.99 | per 6 months |
| MASS Semiannual Full Access | $79.99 | per 6 months |
| MASS Annual Full Access | $119.99 | per year |
| MASS Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is DSST Information Systems Prep free?

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

### Is EEI MASS Test Prep 2026 free?

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

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

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

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

DSST Information Systems Prep ships an update every 5 months, and EEI MASS Test Prep 2026 every 5 months. Most recently, DSST Information Systems Prep was updated on November 1, 2026 and EEI MASS Test Prep 2026 on November 14, 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.*