# Happo vs Argos

> Choose Argos if you want the diff to show what your test rendered, lower overage rates and open-source code for the whole platform. Choose Happo if you need every component rendered in Safari, iOS Safari and Edge on each run, without running those browsers yourself.

Canonical: https://argos-ci.com/compare/happo

## Verdict

Choose Argos if:

- You want the diff to show exactly what your test rendered, captured in your own CI browser.
- You want lower overage rates: $0.004 per extra screenshot, $0.0015 for Storybook, against $0.006 per extra snapshot on Happo.
- You want text diffs of JSON, Markdown or HTML next to your screenshots.
- You want preview deployments of your Storybook or static site.
- You want open-source code for the whole platform, not only the client.

Choose Happo if:

- You need Safari, iOS Safari or Edge renders on every run without running those browsers in CI.
- You want accessibility testing in the same tool.
- You want one snapshot rendered in several browsers from a single upload.

## Feature comparison

| Feature | Argos | Happo |
| --- | --- | --- |
| **[Monthly pricing](https://argos-ci.com/pricing)** — How much it costs per month | $100/mo | $149/mo |
| **[Snapshot testing for any file](https://argos-ci.com/diff)** — Diff Markdown, JSON, HTML and more, not just images | Yes | No |
| **[Open Source](https://github.com/argos-ci)** — SDK and platform code available | Yes | Client only (MIT) |

Sources for Happo: [Happo pricing](https://happo.io/pricing), [Happo getting started](https://docs.happo.io/docs/getting-started), [happo on npm](https://www.npmjs.com/package/happo) (checked 2026-10-05).

## Pricing

Argos Pro is $100/month including 35,000 screenshots, then $0.004 per extra screenshot ($0.0015 for Storybook screenshots). The estimate uses the same assumptions as the calculator on the page: Happo at $149/month for 50,000 screenshots, then $399/month for 150,000 screenshots, then $749/month for 300,000 screenshots, and $0.006 per additional screenshot.

| Screenshots per month | Argos | Happo |
| --- | --- | --- |
| 10,000 | $100 | $149 |
| 50,000 | $160 | $149 |
| 100,000 | $360 | $399 |

Happo prices from happo.io/pricing (checked October 2026). Happo counts one snapshot per component variant and browser; the estimate assumes one browser.

Argos pricing in full: https://argos-ci.com/pricing

## Frequently asked questions

### Is Argos a good Happo alternative?

If your tests already run in one browser and you want the review on the pull request, yes: Argos takes the screenshot in your test, picks the baseline from your Git history and costs less per extra screenshot. If you need the same component rendered in Safari, iOS Safari and Edge on every run, Happo's cloud rendering is built for that.

### How does Happo render screenshots?

Happo's CLI uploads your suite, and Happo renders every snapshot in each target browser on its own servers. A snapshot is one component variant in one browser, so testing in three browsers counts three snapshots. Argos uses the screenshot your test took in CI.

### How do Happo and Argos prices compare?

As of October 2026, Happo Starter is $149/month for 50,000 snapshots (Chrome and Firefox), Growth $399/month for 150,000 (adds Safari) and Pro $749/month for 300,000 (adds iOS Safari and Edge), then $0.006 per snapshot. Argos Pro is $100/month for 35,000 screenshots, then $0.004 per screenshot, or $0.0015 for Storybook screenshots. Both have a free plan with 5,000 a month.

### Is Happo open source?

Its happo client is MIT-licensed; the rendering service is commercial. Argos is open source end to end, the platform included.

### How do I move from Happo to Argos?

Capture your stories or pages with the Argos SDK for your framework instead of uploading them to Happo, then run your tests in CI with ARGOS_TOKEN set. Start from [Storybook](https://argos-ci.com/integrations/storybook), [Playwright](https://argos-ci.com/integrations/playwright) or [Cypress](https://argos-ci.com/integrations/cypress).

Ready to switch to Argos? Get started for free, no credit card required: https://app.argos-ci.com/signup