Mailgun Inspect alternative
A Mailgun Inspect alternative that starts free
Mailgun Inspect is the rebuilt Email on Acid, with plans from $99 a month for 1,000 previews and $199 a month for the checks. It's a capable tool, priced for teams that need very wide client coverage.
EmailTestr is built for the everyday check before a send: the clients most people actually look at, a clear list of what's broken, and the line to fix.
Free during early access. No card needed.
EmailTestr and Mailgun Inspect compared
| Feature | EmailTestr | Mailgun Inspect |
|---|---|---|
| Price | Free during early access. Paid plans planned from £9 ($12) a month | $99 a month (Basic), $199 a month (Premium), first month free |
| Previews included | 1,000 a month in early access; failed previews never count | 1,000 or 2,000 a month, then $0.15 each |
| Email clients | A focused set: the clients most people actually check | 100+ clients and devices |
| Apple Mail, light and dark | Yes, iPhone and Mac, light and dark (simulated in WebKit) | Yes |
| Gmail, Outlook.com, Yahoo | Outlook.com and Yahoo real inbox screenshots coming soon; Gmail next | Yes |
| Outlook for Windows | Planned | Yes |
| Link, image and accessibility checks | 12 checks on every test, free on every plan | Premium plan only |
| Code view with problem lines | Yes: click an issue, see the line highlighted | Code analysis on Premium |
| Test what your platform sends | Yes: a private address to send tests to from any platform | Yes |
| Spam testing | Spam signals in the checks (URL shorteners, shouting subjects). No full spam filter testing | Spam content checks on Premium |
| Team members | Unlimited team members | Unlimited users |
Facts about Mailgun Inspect checked in November 2026 from public sources (below). Prices change, so check their site before you decide.
Choose Mailgun Inspect if
- You need 100+ clients and devices, including older Outlook versions, today.
- You already send with Mailgun and want testing in the same account.
Choose EmailTestr if
- Checks like broken links, alt text and Gmail clipping are free on every EmailTestr plan, not a $199 upgrade.
- You want a short list of fixes with line numbers, not a large report.
- You're a freelancer or small team and $99 a month is more than the job needs.
LightApple Mail · iPhone · a real EmailTestr render
DarkApple Mail · iPhone · a real EmailTestr render
Questions
Sources: Mailgun Inspect pricing, Mailgun: understanding usage in Inspect.
Also comparing: Email on Acid · Litmus
Mailgun Inspect replaces Email on Acid. Mailgun describes it as a rebuild on its own platform, and Email on Acid customers are being moved across from June 2026.
Both count a preview as one email client in one test. On EmailTestr, light and dark mode of the same client count once, and previews that fail are never counted.
Yes. Every plan includes unlimited team members. You pay for previews, not seats.