# PHP Interview Q & A. vs Customer Service Exam

The clearest difference is in-app purchases: Customer Service Exam at none against PHP Interview Q & A.'s 1. Customer Service Exam also leads on ads (none vs shown) and update cadence (every 3 months vs every 94 months). PHP Interview Q & A.'s advantage is iOS requirement (14.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. PHP Interview Q & A. sells 1 one-off in-app purchase. Customer Service Exam asks for nothing beyond the download.

PHP Interview Q & A. ships an update every 94 months, Customer Service Exam every 3 months. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PHP Interview Q & A. | Customer Service Exam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 94 months | **Every 3 months** |
| Size | 16 MB | 6 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RAVINDHIRAN SUMITHRA](https://appshunter.io/developer/1571016391) | [Martin Tseng](https://appshunter.io/developer/1217065716) |

## What reviewers say

### PHP Interview Q & A.

[App page](https://appshunter.io/ios/app/php-interview-q-and-a/id1070986724)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PHP Interview Questions | $3.99 | one-time |


### Customer Service Exam

[App page](https://appshunter.io/ios/app/customer-service-exam/id6469744682)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PHP Interview Q & A. free?

PHP Interview Q & A. is free to download, with in-app purchases available.

### Is Customer Service Exam free?

Customer Service Exam is free to download, with no in-app purchases.

### Do PHP Interview Q & A. or Customer Service Exam have ads?

PHP Interview Q & A. shows ads; Customer Service Exam does not.

### Which is updated more often, PHP Interview Q & A. or Customer Service Exam?

PHP Interview Q & A. ships an update every 94 months, and Customer Service Exam every 3 months. Most recently, PHP Interview Q & A. was updated on October 12, 2026 and Customer Service Exam on October 6, 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.*