# CLF vs Interview Expert

The clearest difference is device support: CLF at 3 against Interview Expert's 1. CLF also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. CLF sells 4 in-app purchases, starting at $9.99 per 7 days and Interview Expert sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

CLF ships an update every 2 weeks, Interview Expert every 11 days. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CLF | Interview Expert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clf-c02-pocket-study/id6737145774/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 56 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pocket Study LLC](https://appshunter.io/developer/1841630256) | [Great X Inc](https://appshunter.io/developer/6780353456) |

## What reviewers say

### CLF

[App page](https://appshunter.io/ios/app/clf-c02-pocket-study/id6737145774)

Prepare for the AWS Certified Cloud Practitioner exam with a vast question bank and detailed explanations. Features adaptive learning, exam simulators, and progress tracking for effective study.

**Highlights:** 5000+ AWS Cloud Practitioner practice questions, Aligned with latest CLF-C02 exam objectives, Detailed explanations for each question, Personalized study plans with adaptive learning, CLF-C02 Exam simulator with timer, Smart progress tracking and weak-area focus, Offline study access

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly AWS Cloud Practitioner Prep | $9.99 | per 7 days |
| Monthly CLF-C02 Exam Prep 2025 | $24.99 | per month |
| Quarterly CLF-C02 Exam Study Guide | $49.99 | per 3 months |
| Yearly CLF-C02 Prep Pocket Study | $149.99 | per year |


### Interview Expert

[App page](https://appshunter.io/ios/app/interview-expert-your-english/id6780353454)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interview Expert Pro | $9.99 | per month |
| Pro Max | $14.99 | per month |
| Pro Max (Annual) | $89.99 | per year |


## Frequently asked questions

### Is CLF free?

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

### Is Interview Expert free?

Interview Expert is free to download, with in-app purchases available.

### Do CLF or Interview Expert have ads?

Neither CLF nor Interview Expert shows ads.

### Which is updated more often, CLF or Interview Expert?

CLF ships an update every 2 weeks, and Interview Expert every 11 days. Most recently, CLF was updated on October 5, 2026 and Interview Expert 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.*