# PDF2IMG vs OmniLock

The clearest difference is in-app purchases: PDF2IMG at none against OmniLock's 1. PDF2IMG also leads on rating (4.3 vs 3.9) and review sentiment (100% vs 81%). OmniLock's advantage is update cadence (every 3 weeks vs every 11 months) and ratings volume (29 vs 9). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OmniLock sells 1 one-off in-app purchase. PDF2IMG asks for nothing beyond the download.

PDF2IMG holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 9 and 29 respectively. Written reviews point the same way: 100% of PDF2IMG's written reviews are positive against 81% of OmniLock's.

PDF2IMG ships an update every 11 months, OmniLock every 3 weeks. The most recent releases landed on September 8, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | PDF2IMG | OmniLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (9 ratings)](https://appshunter.io/ios/app/pdf2img/id1236146668/reviews)** | [3.9 (29 ratings)](https://appshunter.io/ios/app/omnilock/id1645472970/reviews) |
| Number of ratings | 9 | **29** |
| Positive reviews | **100.0% of reviews** | 81.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 34 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jiaqiang Song](https://appshunter.io/developer/1122013029) | [Flinteger LLC](https://appshunter.io/developer/1553642024) |

## What reviewers say

### PDF2IMG

[App page](https://appshunter.io/ios/app/pdf2img/id1236146668)

Convert PDF pages into images, with the option to merge selected pages into a single long image. Streamline your workflow by easily importing and processing PDF files.

**Highlights:** Convert PDF pages to images, Merge selected pages into one image, Import PDF files, Select specific pages for conversion, Improve productivity

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

**In-app purchases:** none


### OmniLock

[App page](https://appshunter.io/ios/app/omnilock/id1645472970)

This app helps manage screen time and filter web content across multiple browsers. It allows blocking distracting apps, specific websites, and adult content, while also offering privacy protection against ads and trackers. Users can secure settings with a passcode or Face ID.

**Highlights:** Screen time management, Web content filtering, App blocking, Customizable blocklists, Passcode and Face ID lock, Shortcut integration

**Features:** Safari Extension

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is PDF2IMG free?

PDF2IMG is free to download, with no in-app purchases.

### Is OmniLock free?

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

### Which has better reviews, PDF2IMG or OmniLock?

PDF2IMG is rated higher. PDF2IMG averages 4.3 out of 5 from 9 ratings, while OmniLock averages 3.9 from 29 ratings.

### Do PDF2IMG or OmniLock have ads?

Neither PDF2IMG nor OmniLock shows ads.

### Which is updated more often, PDF2IMG or OmniLock?

PDF2IMG ships an update every 11 months, and OmniLock every 3 weeks. Most recently, PDF2IMG was updated on September 8, 2026 and OmniLock on August 12, 2026.

---

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