# SCS Survey vs PDF Master

The clearest difference is update cadence: PDF Master at every 9 days against SCS Survey's every 28 months. SCS Survey's advantage is iOS requirement (11.0 vs 17.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SCS Survey ships an update every 28 months, PDF Master every 9 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SCS Survey | PDF Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-master-allinone-convert/id6503343639/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 6 MB | 6 MB |
| Requires iOS | **11.0** | 17.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sarawak State Government](https://appshunter.io/developer/1230807902) | [Shivang Mishra](https://appshunter.io/developer/1721126376) |

## What reviewers say

### SCS Survey

[App page](https://appshunter.io/ios/app/scs-survey/id1446713206)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Master

[App page](https://appshunter.io/ios/app/pdf-master-allinone-convert/id6503343639)

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to convert various file types to PDF, edit existing PDFs, secure them with passwords, and organize them by merging or splitting. The intuitive interface and offline access make it a convenient solution for on-the-go productivity.

**Highlights:** Convert Word, Excel, images to PDF, Convert multiple photos to a single PDF, Share and print PDFs, Secure PDFs with password encryption, Annotate and edit PDF text/images, Merge and split PDF files, Offline access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SCS Survey free?

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

### Is PDF Master free?

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

### Do SCS Survey or PDF Master have ads?

Neither SCS Survey nor PDF Master shows ads.

### Which is updated more often, SCS Survey or PDF Master?

SCS Survey ships an update every 28 months, and PDF Master every 9 days. Most recently, SCS Survey was updated on October 26, 2026 and PDF Master on October 24, 2026.

---

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