# Source Viewer Lite vs ScanOnce

The clearest difference is update cadence: ScanOnce at every 2 months against Source Viewer Lite's every 9 months. Source Viewer Lite's advantage is iOS requirement (6.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Source Viewer Lite sells 1 one-off in-app purchase and ScanOnce sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Source Viewer Lite ships an update every 9 months, ScanOnce every 2 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Source Viewer Lite | ScanOnce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.1 (9 ratings)](https://appshunter.io/ios/app/source-viewer-lite/id508441852/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 2.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 3 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Johanna Hoppe](https://appshunter.io/developer/1869099620) |

## What reviewers say

### Source Viewer Lite

[App page](https://appshunter.io/ios/app/source-viewer-lite/id508441852)

View the HTML, CSS, and JavaScript source code of any website. Highlighted code, extracted links, and image collections are available. Save bookmarks, toggle word wrap, and copy/paste code easily.

**Highlights:** View HTML, CSS, and JavaScript source, Highlighted code elements, Extract and follow embedded links, Collect and view images, Save images to photo album, Bookmark management, Copy and paste code

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Source Viewer Upgrade | $0.99 | one-time |


### ScanOnce

[App page](https://appshunter.io/ios/app/scanonce/id6759916701)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $3.99 | one-time |


## Frequently asked questions

### Is Source Viewer Lite free?

Source Viewer Lite is free to download, with in-app purchases available.

### Is ScanOnce free?

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

### Do Source Viewer Lite or ScanOnce have ads?

Neither Source Viewer Lite nor ScanOnce shows ads.

### Which is updated more often, Source Viewer Lite or ScanOnce?

Source Viewer Lite ships an update every 9 months, and ScanOnce every 2 months. Most recently, Source Viewer Lite was updated on October 13, 2026 and ScanOnce on October 12, 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.*