# ASTB Prep vs SIFT Tutoring

The clearest difference is review sentiment: ASTB Prep at 94% against SIFT Tutoring's 60%. ASTB Prep also leads on update cadence (fortnightly vs every 4 months) and rating (4.9 vs 4.6). SIFT Tutoring's advantage is iOS requirement (13.0 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. ASTB Prep sells 2 one-off in-app purchases and SIFT Tutoring sells 1 in-app purchase, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

ASTB Prep holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 441 and 479 respectively. Written reviews point the same way: 94% of ASTB Prep's written reviews are positive against 60% of SIFT Tutoring's.

ASTB Prep ships an update fortnightly, SIFT Tutoring every 4 months. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ASTB Prep | SIFT Tutoring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (441 ratings)](https://appshunter.io/ios/app/astb-prep/id1549216388/reviews)** | [4.6 (479 ratings)](https://appshunter.io/ios/app/sift-tutoring/id1562481014/reviews) |
| Number of ratings | 441 | **479** |
| Positive reviews | **93.6% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 815 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Alex Hastings](https://appshunter.io/developer/1549216390) | [Debbrata Das](https://appshunter.io/developer/1518771903) |

## 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


### SIFT Tutoring

[App page](https://appshunter.io/ios/app/sift-tutoring/id1562481014)

Prepare for the SIFT exam with over 1400 practice questions and flashcards covering essential skills like math, reading, and spatial reasoning. Access free lessons and tests, or unlock full content with a monthly subscription. Online tutoring is also available.

**Highlights:** 1400+ practice questions, Math Skills, Reading Comprehension, Mechanical Comprehension, Spatial Apperception, Flashcards, ASTB prediction test

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full SIFT Access | $14.99 | per month |

**What reviewers like**

- ✅ Accurate prediction test scores matching actual SIFT results
- 📚 Comprehensive study material covering all SIFT sections
- 🎯 Effective practice questions closely resembling real exam
- 🏆 Helps users achieve passing scores and high marks
- 🎓 Good aviation knowledge content and explanations

**What reviewers complain about**

- 🐛 Login functionality frequently broken or stuck
- ⏳ Excessive loading times between questions
- ❌ Practice tests fail to calculate/display results
- 📝 Numerous grammatical errors in questions
- 🖼️ Missing visual elements for questions requiring images

**Reported bugs**

- Login screen freezes or gets stuck after successful authentication
- Practice tests fail to grade or display results
- Timer continues running during question load times
- App crashes before completing full practice exams
- Cannot submit tests on final page

**Requested features**

- Answer explanations for all practice test questions
- Highlight correct shapes after spatial reasoning questions
- Better visual representation for hidden figures and simple drawings
- Improved timer that pauses during loading screens
- Section-specific time limits matching actual SIFT exam


## Frequently asked questions

### Is ASTB Prep free?

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

### Is SIFT Tutoring free?

SIFT Tutoring is free to download, with in-app purchases available.

### Which has better reviews, ASTB Prep or SIFT Tutoring?

ASTB Prep is rated higher. ASTB Prep averages 4.9 out of 5 from 441 ratings, while SIFT Tutoring averages 4.6 from 479 ratings.

### Do ASTB Prep or SIFT Tutoring have ads?

Neither ASTB Prep nor SIFT Tutoring shows ads.

### Which is updated more often, ASTB Prep or SIFT Tutoring?

ASTB Prep ships an update fortnightly, and SIFT Tutoring every 4 months. Most recently, ASTB Prep was updated on October 22, 2026 and SIFT Tutoring on October 14, 2026.

---

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