# Private Pilot Test Prep vs LetterPop

The clearest difference is price: LetterPop at $0.99 against Private Pilot Test Prep's $14.99. LetterPop also leads on rating (5.0 vs 4.3) and update cadence (every 2 days vs every 4 months). Private Pilot Test Prep's advantage is in-app purchases (none vs 6) and ratings volume (115 vs 2). On ads and device support there is nothing between them.

Private Pilot Test Prep costs $14.99 and LetterPop $0.99 up front. LetterPop sells 6 one-off in-app purchases. Private Pilot Test Prep asks for nothing beyond the download.

LetterPop holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Private Pilot Test Prep has 115 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of Private Pilot Test Prep's written reviews are positive against 100% of LetterPop's.

Private Pilot Test Prep ships an update every 4 months, LetterPop every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Private Pilot Test Prep | LetterPop |
| --- | --- | --- |
| Price | $14.99 | **$0.99** |
| Rating | [4.3 (115 ratings)](https://appshunter.io/ios/app/private-pilot-test-prep/id414141811/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/letterpop/id6755658238/reviews)** |
| Number of ratings | **115** | 2 |
| Positive reviews | 81.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | **Free** | Paid |
| Best chart rank | **#39** | — |
| Size | 27 MB | 20 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sporty's Pilot Shop](https://appshunter.io/developer/371817958) | [Polina Viktoriia Pavletenko](https://appshunter.io/developer/1855323609) |

## What reviewers say

### Private Pilot Test Prep

[App page](https://appshunter.io/ios/app/private-pilot-test-prep/id414141811)

**Currently charting:** #39 Top Paid · Education (US App Store)

Prepare for your FAA written test with this comprehensive study tool. It offers three modes: study questions by topic with detailed explanations, review using flashcards, and take full-length practice tests. Track your progress with detailed reports.

**Highlights:** Study questions by topic, Custom review sessions, Detailed answer explanations, Flashcard review mode, Simulated practice tests, Progress reports

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ Excellent for exam prep
- 💯 Questions are verbatim/similar
- 💡 Affordable and valuable
- 👍 Easy to use and navigate
- 📚 Good explanations

**What reviewers complain about**

- ⚠️ Some questions outdated/inaccurate
- 📉 Not all questions match real exam
- 😵 Repeat questions in test mode
- 📱 Difficult to use on small screens
- 🤔 Explanations not always perfect

**Reported bugs**

- App crashes in test mode
- Progress not saved on phone
- Blackout bug when viewing figures or rotating screen
- Crashes after deleting test sessions
- Not updated for iPhone X

**Requested features**

- Ability to save flagged questions across sessions
- Randomized questions in test mode
- Improved cross-device progress syncing (iCloud)
- Interactive map features for practice
- Search functionality for specific questions


### LetterPop

[App page](https://appshunter.io/ios/app/letterpop/id6755658238)

A word game where you tap colorful letter balls to spell words and earn points. Supports multiple languages and custom word lists, offering an engaging way to practice vocabulary. Enjoy a pure, ad-free experience with no subscriptions.

**Highlights:** Tap letter balls to spell words, Adjustable word length (3-7 letters), 11 languages supported, Custom word list editor, Text-to-speech pronunciation, Works on iPhone and iPad

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Good support | $0.99 | one-time |
| Good Support + | $0.99 | one-time |
| Great Support | $1.99 | one-time |
| Great Support + | $1.99 | one-time |
| Excellent Support + | $4.99 | one-time |
| Excellent Support | $4.99 | one-time |


## Frequently asked questions

### Is Private Pilot Test Prep free?

Private Pilot Test Prep costs $14.99, with no in-app purchases.

### Is LetterPop free?

LetterPop costs $0.99, and also offers in-app purchases.

### Which has better reviews, Private Pilot Test Prep or LetterPop?

LetterPop is rated higher. Private Pilot Test Prep averages 4.3 out of 5 from 115 ratings, while LetterPop averages 5.0 from 2 ratings.

### Do Private Pilot Test Prep or LetterPop have ads?

Neither Private Pilot Test Prep nor LetterPop shows ads.

### Which is updated more often, Private Pilot Test Prep or LetterPop?

Private Pilot Test Prep ships an update every 4 months, and LetterPop every 2 days. Most recently, Private Pilot Test Prep was updated on October 26, 2026 and LetterPop on October 24, 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.*