Ranked by uptime
Email marketing and email sending platforms, ranked by how much they actually go down. Every figure comes from each app’s own status page.
Kit leads right now, with no reported problem at all in the last 90 days. MailerLite and Mailjet come next.
| # | App | Now | Uptime | Problem-free | Problems | Record | Website |
|---|---|---|---|---|---|---|---|
| 1 |  Kit | Working normally | 100% | 100% | 0 | 90 days | Visit Kit |
| 2 |  MailerLite | Working normally | 100% | 100% | 0 | 90 days | Visit MailerLite |
| 3 |  Mailjet | Working normally | 100% | 99.97% | 1 | 90 days | Visit Mailjet |
| 4 |  Beehiiv | Working normally | 100% | 99.73% | 2 | 90 days | Visit Beehiiv |
| 5 |  Constant Contact | Working normally | 100% | 97.73% | 4 | 90 days | Visit Constant Contact |
| 6 |  Resend | Working normally | 99.99% | 93.86% | 25 | 84 days | Visit Resend |
| 7 |  Mailgun | Working normally | 99.95% | 99.32% | 10 | 90 days | Visit Mailgun |
| 8 |  Klaviyo | Working normally | 99.94% | 98.91% | 10 | 90 days | Visit Klaviyo |
| 9 |  Brevo | Working normally | 99.9% | 98.15% | 25 | 70 days | Visit Brevo |
| 10 |  ActiveCampaign | Working normally | 98.61% | 98.15% | 10 | 90 days | Visit ActiveCampaign |
Uptime is the share of time without a major outage. Problem-free is the share of time without any reported problem. Both come from each app's own status page over the last 90 days, or as much of that as its record covers. Apps with less than 14 days of record are listed last, unranked.
Apps are ranked first by uptime, the share of time without a major outage. Ties go to the app with more time free of any reported problem, then to the one with fewer problems. Every figure comes from the app’s own status page, so no app can pay to move up, and the ranking changes by itself as new problems are reported. See how Appys checks apps.
Some status pages only keep their last few weeks of problems, so each app’s record shows how many days it covers. Percentages make records of different lengths fair to compare, and every record grows to the full 90 days as Appys keeps reading.
A status page only shows what a company chooses to report. Small problems, or ones that hit only some users, sometimes never get posted, so treat these figures as the least that went wrong, not the most. If an app isn’t working for you right now, see what’s down right now.
Email alerts
Email us once with the app’s name and we’ll tell you when it reports a major outage, and when it’s working again. No forms, no account, no password.
You sign up by sending one email, so nobody else can use your address. Every alert has a stop link. Add "all problems" to the subject to hear about small problems too.
