# CompTIA Security+ by LearnZapp vs USPS Postal Exam Prep

The clearest difference is price: CompTIA Security+ by LearnZapp at Free against USPS Postal Exam Prep's $8.99. CompTIA Security+ by LearnZapp also leads on device support (4 vs 2) and iOS requirement (12.4 vs 18.5). USPS Postal Exam Prep's advantage is in-app purchases (none vs 5) and update cadence (every 3 weeks vs every 4 months). On ads there is nothing between them.

CompTIA Security+ by LearnZapp is free to download; USPS Postal Exam Prep costs $8.99 up front. CompTIA Security+ by LearnZapp sells 5 in-app purchases, starting at $2.99 per 7 days. USPS Postal Exam Prep asks for nothing beyond the download.

CompTIA Security+ by LearnZapp ships an update every 4 months, USPS Postal Exam Prep every 3 weeks. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CompTIA Security+ by LearnZapp | USPS Postal Exam Prep |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | **[4.5 (116 ratings)](https://appshunter.io/ios/app/comptia-security-plus-by-learnzapp/id1552045561/reviews)** | — |
| Number of ratings | **116** | — |
| Positive reviews | 85.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 3 MB |
| Requires iOS | **12.4** | 18.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [learnZapp](https://appshunter.io/developer/435622455) | [Christopher Enim](https://appshunter.io/developer/1722100693) |

## What reviewers say

### CompTIA Security+ by LearnZapp

[App page](https://appshunter.io/ios/app/comptia-security-plus-by-learnzapp/id1552045561)

Prepare for CompTIA Security+ exams (SY0-601 & SY0-701) with expert-crafted study materials. Features include practice questions, flashcards, readiness scores, custom tests, progress tracking, and mock exams. Study on-the-go with synced progress and a comfortable dark mode.

**Highlights:** Exam-specific practice questions, Detailed explanations and flashcards, Readiness score assessment, Customizable practice tests, Progress tracking and mock exams, On-the-go study with sync, Dark mode for comfort

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access - Weekly | $2.99 | per 7 days |
| All Access - Monthly | $14.99 | per month |
| All Access - 3 Months | $34.99 | per 3 months |
| All Access - 6 Months | $59.99 | per 6 months |
| All Access - 1 Year | $99.99 | per year |

**What reviewers like**

- 👍 Great for passing exams
- 👍 Helpful study resource
- 👍 Explanations reinforce learning
- 👍 Organized by objectives
- 👍 Custom quiz options

**What reviewers complain about**

- 🐛 Some questions have wrong answers
- 🐛 Limited question variety
- 🐛 Repeated questions
- 🐛 Mixes SY0-601 and SY0-701
- 🐛 Some UI elements inefficient

**Reported bugs**

- Some questions have incorrect answers
- Errors in 'show answers as you go' mode
- App will not open (permission denied error)
- Subscription not recognized after purchase
- Flashcards have repeated and missing terms

**Requested features**

- More variety in generated questions
- More questions for each study topic
- Ability to select subdomains for practice tests
- Weekly subscription option
- Ability to use keyboard for navigation


### USPS Postal Exam Prep

[App page](https://appshunter.io/ios/app/usps-postal-exam-prep/id6754321097)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CompTIA Security+ by LearnZapp free?

CompTIA Security+ by LearnZapp is free to download, with in-app purchases available.

### Is USPS Postal Exam Prep free?

USPS Postal Exam Prep costs $8.99, with no in-app purchases.

### Do CompTIA Security+ by LearnZapp or USPS Postal Exam Prep have ads?

Neither CompTIA Security+ by LearnZapp nor USPS Postal Exam Prep shows ads.

### Which is updated more often, CompTIA Security+ by LearnZapp or USPS Postal Exam Prep?

CompTIA Security+ by LearnZapp ships an update every 4 months, and USPS Postal Exam Prep every 3 weeks. Most recently, CompTIA Security+ by LearnZapp was updated on September 19, 2026 and USPS Postal Exam Prep on September 21, 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.*