# ASTB Prep vs WatchBill

The clearest difference is in-app purchases: WatchBill at none against ASTB Prep's 2. WatchBill also leads on update cadence (every 2 days vs fortnightly). ASTB Prep's advantage is ratings volume (441 vs 12). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. ASTB Prep sells 2 one-off in-app purchases. WatchBill asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for ASTB Prep against 5.0 for WatchBill. That said, the two scores are not equally well evidenced: ASTB Prep has 441 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 94% of ASTB Prep's written reviews are positive against 100% of WatchBill's.

ASTB Prep ships an update fortnightly, WatchBill every 2 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ASTB Prep | WatchBill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (441 ratings)](https://appshunter.io/ios/app/astb-prep/id1549216388/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/watchbill/id6749332367/reviews)** |
| Number of ratings | **441** | 12 |
| Positive reviews | 93.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 815 MB | 28 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Alex Hastings](https://appshunter.io/developer/1549216390) | [Mason Drake](https://appshunter.io/developer/1830038819) |

## What reviewers say

### ASTB Prep

[App page](https://appshunter.io/ios/app/astb-prep/id1549216388)

Prepare for naval aviation exams with comprehensive study materials, practice tests, and simulators. Covers all subtests for Navy, Marine Corps, and Coast Guard aviation selection. Features adaptive testing and offline access.

**Highlights:** 73 comprehensive lessons, 140+ flashcard decks, 600+ sample test questions, Unlimited adaptive practice tests, UAV tracking simulator, Terrain identification simulator, Stick and throttle simulators

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Joystick Functionality | Free | one-time |
| Full Access | $39.99 | one-time |

**What reviewers like**

- 🚀 Great tool for ASTB prep
- 👍 Comprehensive study materials
- 🚀 Helpful simulators for PBM
- 🚀 Improved test scores
- 👍 Detailed lessons and practice tests

**What reviewers complain about**

- 🐛 Some math/physics questions have incorrect answers
- 🐛 UAV simulator not fully accurate to real test
- 🐛 Stick and throttle simulator needs improvement

**Reported bugs**

- Mechanical comprehension test has 30 questions, not 20
- Terrain identification section has occasional screen color issues

**Requested features**

- Option to disable timer for terrain identification
- Ability to configure duration of correct answer display
- Add audio for UAV portion to simulate real test experience
- Include emergency scenario training for UAV


### WatchBill

[App page](https://appshunter.io/ios/app/watchbill/id6749332367)

This app serves as a daily companion for U.S. Naval Academy midshipmen, consolidating schedules, dining hall menus, duty rosters, and essential resources into a single, user-friendly interface. It helps users stay organized and informed about daily life on campus.

**Highlights:** Daily Schedule management, King Hall Menu updates, Officers of the Watch roster, Hours Gouge for services, QuickLinks to USNA systems

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ASTB Prep free?

ASTB Prep is free to download, with in-app purchases available.

### Is WatchBill free?

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

### Which has better reviews, ASTB Prep or WatchBill?

WatchBill is rated higher. ASTB Prep averages 4.9 out of 5 from 441 ratings, while WatchBill averages 5.0 from 12 ratings.

### Do ASTB Prep or WatchBill have ads?

Neither ASTB Prep nor WatchBill shows ads.

### Which is updated more often, ASTB Prep or WatchBill?

ASTB Prep ships an update fortnightly, and WatchBill every 2 days. Most recently, ASTB Prep was updated on October 19, 2026 and WatchBill on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*