How Appys checks apps

Where every status on Appys comes from, how often it’s checked, and what it can and can’t tell you.

How Appys works: the app's own status page, Appys reads it every few minutes, you see it here or by email

Where statuses come from

Every app on Appys publishes an official status page, run by the company itself, with a feed made for other programs to read. Appys reads that feed. We don’t test the apps ourselves, and we never guess: if a status page says everything is working, so do we.

How often

Whenever you open an app’s page, we read its status page again if our last reading is more than 2 minutes old, so what you see is current. In between, apps people get email alerts for are read every 2 minutes, apps with a problem every 5 minutes until it’s fixed, and every other app at least every 30 minutes. Every 6 hours we also read each app’s recent history, which records every problem the company wrote up, including short ones that started and finished between two checks. If we can’t read a status page for 45 minutes, the app’s page says we can’t confirm its status rather than showing an old answer.

What the colours mean

Working normally The app says everything is working.

Some problems Some features are slow or failing, or part of the service is down.

Major outage A whole service is down.

Maintenance under way The company is doing planned work right now. The app usually still works, but the parts being worked on may be briefly unavailable. We show which parts, and when the work is due to finish.

The 90-day record

Each app page shows the last 90 days as a bar, one block per day, with the problems it reported, how long they lasted and which parts of the service they hit. Grey days are before the record starts. Overlapping problems are counted once.

Safety facts

Once a day we also check each app’s public records: whether fake emails in its name are blocked, whether its website certificate is valid, whether it publishes a security contact, and whether Have I Been Pwned lists any data breaches for it.

What Appys can’t see

Status pages are written by the companies themselves. They can be a few minutes behind, and some small problems are never posted. If an app isn’t working for you but its page says it is, the problem may be local to you, or not reported yet.