# Emerson University vs CSLB C

The clearest difference is in-app purchases: Emerson University at none against CSLB C's 9. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CSLB C sells 9 in-app purchases, starting at $8.99 per 7 days. Emerson University asks for nothing beyond the download.

Emerson University ships an update every 4 months, CSLB C every 5 months. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Emerson University | CSLB C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (9 ratings)](https://appshunter.io/ios/app/cslb-c-39-roofing-test-prep/id6747896465/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 176 MB | 53 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [FieldScope](https://appshunter.io/developer/1465630967) | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) |

## What reviewers say

### Emerson University

[App page](https://appshunter.io/ios/app/emerson-university/id6480057746)

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

**In-app purchases:** none


### CSLB C

[App page](https://appshunter.io/ios/app/cslb-c-39-roofing-test-prep/id6747896465)

Prepare for the C-39 Roofing Contractor License Exam with up-to-date materials for 2026. Access an extensive question bank, detailed explanations, and progress tracking to hone your skills. Features include customizable study plans and simulated exam modes for comprehensive preparation.

**Highlights:** Up-to-date for 2026, Extensive question bank, Detailed explanations, Progress tracking, Simulated exam mode, Customizable study plans

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CLSB C-39 Weekly Full Access | $8.99 | per 7 days |
| C-39 Monthly Full Access | $24.99 | per month |
| CLSB C-39 Monthly Full Access | $24.99 | per month |
| C-39 Quarterly Full Access | $55.99 | per 3 months |
| C-39 Quarterly Full Access | $55.99 | per 3 months |
| C-39 Semiannual Full Access | $75.99 | per 6 months |
| C-39 Semiannual Full Access | $79.99 | per 6 months |
| C-39 Annual Full Access | $109.99 | per year |
| C-39 Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is Emerson University free?

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

### Is CSLB C free?

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

### Do Emerson University or CSLB C have ads?

Neither Emerson University nor CSLB C shows ads.

### Which is updated more often, Emerson University or CSLB C?

Emerson University ships an update every 4 months, and CSLB C every 5 months. Most recently, Emerson University was updated on October 27, 2026 and CSLB C on October 23, 2026.

---

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