# Instrument Proficiency Prep vs Instrument Test Prep

The clearest difference is update cadence: Instrument Test Prep at fortnightly against Instrument Proficiency Prep's every 10 months. Instrument Proficiency Prep's advantage is iOS requirement (12.4 vs 17.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Instrument Proficiency Prep sells 1 one-off in-app purchase and Instrument Test Prep sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Instrument Proficiency Prep ships an update every 10 months, Instrument Test Prep fortnightly. The most recent releases landed on September 23, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Instrument Proficiency Prep | Instrument Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (155 ratings)](https://appshunter.io/ios/app/instrument-test-prep/id1456043080/reviews)** |
| Number of ratings | — | **155** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 122 MB |
| Requires iOS | **12.4** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [First Solo Software, LLC](https://appshunter.io/developer/453605044) | [Aeroapps Technology](https://appshunter.io/developer/923860276) |

## What reviewers say

### Instrument Proficiency Prep

[App page](https://appshunter.io/ios/app/instrument-proficiency-prep/id1050848471)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Topics | $19.99 | one-time |


### Instrument Test Prep

[App page](https://appshunter.io/ios/app/instrument-test-prep/id1456043080)

Prepare for your FAA Instrument Rating Knowledge Test with a comprehensive question bank and detailed explanations. Customize study sessions, take simulated exams, and track your progress. An optional upgrade unlocks full ground school lessons and advanced features.

**Highlights:** Over 900 FAA questions with explanations, Customizable study sessions, Simulated FAA exams, Review missed questions, Track progress across devices, Study resources library

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Instrument Ground School Trial | Free | one-time |
| Instrument Rating Test Prep | $49.99 | one-time |
| Upgrade to Ground School | $129.99 | one-time |
| Instrument Ground School | $179.99 | one-time |


## Frequently asked questions

### Is Instrument Proficiency Prep free?

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

### Is Instrument Test Prep free?

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

### Do Instrument Proficiency Prep or Instrument Test Prep have ads?

Neither Instrument Proficiency Prep nor Instrument Test Prep shows ads.

### Which is updated more often, Instrument Proficiency Prep or Instrument Test Prep?

Instrument Proficiency Prep ships an update every 10 months, and Instrument Test Prep fortnightly. Most recently, Instrument Proficiency Prep was updated on September 23, 2026 and Instrument Test Prep on October 13, 2026.

---

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