Apps with 'Response time tracking' feature

Monika is a command-line application to monitor every part of your web app using a simple YAML configuration file. Get alert notifications through SMTP, Discord, Slack, WhatsApp, and many more when your site is down but also when it's slow!.

Statsignal is the simplest and most cost-effective way to monitor your website or server and publish a status page of your system. No plans, pay as you go. Free monitors available.

HowFast monitors offers website downtime monitoring with a check every single minute. It also helps you to track the response time of your server over time, telling you how much time was spent during DNS resolution, TCP connection, TLS handshake, HTTP send / wait / download, and...

Performance monitoring simplified. Never let users see your website down or with bad loading speeds. Receive alerts & insights in real-time on health and performance.

Pingbreak is an original and free monitoring service. Get notified through Twitter if your website is down. Pingbreak checks all of your websites each minute and alert you instantly by Direct Message (DM)

LANState is a simple NMS with the network topology mapping and device monitoring functions. Add hosts to a graphical network map and monitor their state in the real time. Receive failure notifications when hosts and services go down.

UserExperior is an enterprise grade qualitative analytics for mobile apps provides session replays, heatmap analytics, journey analytics, user segmentation & response time tracking.