Side by side
GlockApps vs MailSlurp
Both stand on email testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
GlockApps covers inbox placement, sender reputation, authentication, and uptime monitoring, with API access even on its free plan. Review the plan limits and the email data collected for testing before choosing it.
Visit GlockApps
Free plan AndroidAPIiPhone+1
MailSlurp combines programmable inboxes, workflow automation, and email and SMS testing, with extraction and developer integrations. Compare its capped plan allowances with your expected volume before choosing a tier.
Visit MailSlurpThe facts
| GlockApps | MailSlurp | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | API, Web | Android, API, iPhone, Web |
| Lowest paid plan | Essential: $59 a month | Starter: $19.99 a month |
| Plans published | 4 | 5 |
| Maker | Not published | Not published |
| Website | glockapps.com | mailslurp.com |
| On email testing software | #6 of 28 | #10 of 28 |
GlockApps: what it does well
- Inbox Insight reports inbox, spam, and subfolder placement.
- Checks include several named spam filters.
- The API is available on all plans, including free.
- Uptime checks can run as often as every minute.
- DMARC reports are stored for a year.
What to know first
- The free plan includes two spam test credits.
- The free plan has five uptime monitors.
- Paid plans start at $59 a month.
- Inbox Insight collects message content and headers for testing.
MailSlurp: what it does well
- Supports APIs, SDKs, SMTP, IMAP, and webhooks.
- Tests OTP, MFA, magic links, and load workflows.
- AI extraction can structure email and attachment data as JSON.
- Free plan includes 1,000 sandbox sends per month.
What to know first
- Free and Starter plans cap several usage allowances.
- Custom domains and phone numbers require Pro on Free and Starter.
- Starter costs $19.99 per month.
Alternatives to GlockApps Alternatives to MailSlurp The whole list