# Instrument Test Prep vs LBLESD

The clearest difference is in-app purchases: LBLESD at none against Instrument Test Prep's 4. LBLESD also leads on iOS requirement (13.0 vs 17.1). Instrument Test Prep's advantage is update cadence (fortnightly vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. Instrument Test Prep sells 4 one-off in-app purchases. LBLESD asks for nothing beyond the download.

Instrument Test Prep ships an update fortnightly, LBLESD every 31 months. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Instrument Test Prep | LBLESD |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 31 months |
| Monetization | Free with in-app purchases | — |
| Size | 122 MB | 38 MB |
| Requires iOS | 17.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Aeroapps Technology](https://appshunter.io/developer/923860276) | [Linn Benton Lincoln Education Service District](https://appshunter.io/developer/1524690939) |

## What reviewers say

### 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 |


### LBLESD

[App page](https://appshunter.io/ios/app/lblesd/id1533881104)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Instrument Test Prep free?

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

### Is LBLESD free?

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

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

Neither Instrument Test Prep nor LBLESD shows ads.

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

Instrument Test Prep ships an update fortnightly, and LBLESD every 31 months. Most recently, Instrument Test Prep was updated on October 13, 2026 and LBLESD on September 29, 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.*