# RAINTREE ISC vs CLF

The clearest difference is in-app purchases: RAINTREE ISC at none against CLF's 4. CLF's advantage is ads (none vs shown) and update cadence (every 2 weeks vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. CLF sells 4 in-app purchases, starting at $9.99 per 7 days. RAINTREE ISC asks for nothing beyond the download.

RAINTREE ISC ships an update monthly, CLF every 2 weeks. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RAINTREE ISC | CLF |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 94 MB | 100 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Panha Sa](https://appshunter.io/developer/1534830463) | [Pocket Study LLC](https://appshunter.io/developer/1841630256) |

## What reviewers say

### RAINTREE ISC

[App page](https://appshunter.io/ios/app/raintree-isc/id1625619311)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is RAINTREE ISC free?

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

### Is CLF free?

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

### Do RAINTREE ISC or CLF have ads?

RAINTREE ISC shows ads; CLF does not.

### Which is updated more often, RAINTREE ISC or CLF?

RAINTREE ISC ships an update monthly, and CLF every 2 weeks. Most recently, RAINTREE ISC was updated on October 9, 2026 and CLF on October 5, 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.*