# POSS Plant Operator Test Prep vs AutoStem

The clearest difference is in-app purchases: AutoStem at none against POSS Plant Operator Test Prep's 9. AutoStem also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. POSS Plant Operator Test Prep sells 9 in-app purchases, starting at $8.99 per 7 days. AutoStem asks for nothing beyond the download.

## The numbers

| Metric | POSS Plant Operator Test Prep | AutoStem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/poss-plant-operator-test-prep/id6747966350/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 22 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) | [Coding Minds, Inc.](https://appshunter.io/developer/1480612283) |

## What reviewers say

### POSS Plant Operator Test Prep

[App page](https://appshunter.io/ios/app/poss-plant-operator-test-prep/id6747966350)

Prepare for the POSS Plant Operator exam with up-to-date study materials and practice questions. Track your progress, customize study plans, and take simulated exams to build confidence for success.

**Highlights:** Up-to-date for 2025 exam, Extensive question bank, Detailed explanations for answers, Progress tracking, Customizable study plans, Simulated exam mode, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| POSS Weekly Full Access | $8.99 | per 7 days |
| POSS Monthly Full Access | $24.99 | per month |
| POSS Monthly Full Access | $34.99 | per month |
| POSS Quarterly Full Access | $55.99 | per 3 months |
| POSS Quarterly Full Access | $59.99 | per 3 months |
| POSS Semiannual Full Access | $75.99 | per 6 months |
| POSS Semiannual Full Access | $79.99 | per 6 months |
| POSS Annual Full Access | $109.99 | per year |
| POSS Annual Full Access | $119.99 | per year |


### AutoStem

[App page](https://appshunter.io/ios/app/autostem/id6755132188)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is POSS Plant Operator Test Prep free?

POSS Plant Operator Test Prep is free to download, with in-app purchases available.

### Is AutoStem free?

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

### Do POSS Plant Operator Test Prep or AutoStem have ads?

Neither POSS Plant Operator Test Prep nor AutoStem shows ads.

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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.*