# ImgAuth vs Runway

> ImgAuth: Check documents for tampering and images for AI-generation signals with heatmap evidence
> Runway: AI video, image and audio creation suite with Gen-4.5, agents and an API

- ImgAuth profile: https://finderatlas.com/tools/imgauth
- Runway profile: https://finderatlas.com/tools/runway
- Comparison page: https://finderatlas.com/compare/imgauth-vs-runway
- Last reviewed: October 2026

## Verdict

ImgAuth and Runway are both Image & Visual AI tools. Runway scores higher in FinderAtlas's editorial review (8.4 vs 7.3 out of 10). Both have a free plan or trial. Only Runway is available on iOS and Android.

### Choose ImgAuth if

- You want a tool built for triage of invoices, receipts, certificates and claim documents, and quick whole-image AI-generation checks as one input to a human review.
- Focused on two clear tasks, document tampering and AI-generated image detection.
- Heatmaps and suspicious-region outputs give reviewers something to check, instead of a bare score.

### Choose Runway if

- You want a tool built for Text-to-video and image-to-video generation.
- Combines video, image and audio generation and editing in one workspace.
- Offers Runway's own Gen-4.5 plus third-party models such as Seedance 2.0.

## Pricing

| | ImgAuth | Runway |
| --- | --- | --- |
| Pricing model | Free trial | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | ImgAuth | Runway |
| --- | --- | --- |
| Document fraud detection | Yes | Not listed |
| Heatmap evidence | Yes | Not listed |
| AI Image Detector | Yes | Not listed |
| Real or AI Face | Yes | Not listed |
| REST API | Yes | Not listed |
| Referral credits | Yes | Not listed |
| Privacy handling | Yes | Not listed |
| Multilingual site | Yes | Not listed |
| Gen-4.5 video model | Not listed | Yes |
| Creative Agent | Not listed | Yes |
| Multiple models | Not listed | Yes |
| Characters | Not listed | Yes |
| Aleph and Act-Two | Not listed | Yes |
| Audio tools | Not listed | Yes |
| Workflows and Recipes | Not listed | Yes |
| Runway Dev API | Not listed | Yes |
| Runway MCP | Not listed | Yes |

## Platforms

| Platform | ImgAuth | Runway |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | No | Yes |
| Android | No | Yes |
| API | Yes | Yes |
| Browser Extension | No | No |

## ImgAuth strengths

- Focused on two clear tasks, document tampering and AI-generated image detection
- Heatmaps and suspicious-region outputs give reviewers something to check, instead of a bare score
- Free 3-credit trial with no card, and cancellation at any time with access until period end
- REST API for higher-volume and team workflows
- Candid limitations: outputs are described as review signals, with explicit scope boundaries

## ImgAuth limitations

- No published accuracy figures or independent benchmarks
- Not a deepfake, face-swap, liveness or identity tool, and the site's wording on face-swap detection is inconsistent
- 10 MB file limit and no free ongoing tier after the 3 trial credits
- Mobile app is only announced, with an outdated launch estimate (Q2 2025) on the site
- Operating company is named only as ImgAuth Ltd, with no team or founding details published

## Runway strengths

- Combines video, image and audio generation and editing in one workspace
- Offers Runway's own Gen-4.5 plus third-party models such as Seedance 2.0
- Creative Agent builds videos from a conversation
- Runway Dev API with Node and Python SDKs
- Free plan with 125 credits that do not expire
- Native iOS and Android apps

## Runway limitations

- Credit-based pricing: a 5-second Gen-4.5 clip costs 60 credits, so the 625 credits on Standard cover about 10 such clips
- Standard and Pro credits do not roll over at the end of the month
- Some App Store reviewers complain about the cost of failed or unusable generations
- 4K upscaling is unlimited only on Pro and Max

## FAQ

**Is ImgAuth better than Runway?**

It depends on your workflow. ImgAuth is built for triage of invoices, receipts, certificates and claim documents, and quick whole-image AI-generation checks as one input to a human review. Runway is built for Text-to-video and image-to-video generation.

**What are the key feature differences between ImgAuth and Runway?**

ImgAuth: Check documents for tampering and images for AI-generation signals with heatmap evidence. Runway: AI video, image and audio creation suite with Gen-4.5, agents and an API.

**Does ImgAuth or Runway have a free plan?**

Yes, both do. ImgAuth is free trial and Runway is freemium, and each has a free plan or trial.

**Which is cheaper, ImgAuth or Runway?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.