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Keep it up vs Blackbox Exporter: catalog facts
Keep it up	Blackbox Exporter
Free Free and open source under the Apache-2.0 licence.	Free Free and open source, part of the Prometheus project.
Android	Linux, Self-hosted
Ping, TCP, HTTP/HTTPS and SNMP checks Logs each check with result and duration	Probes over several protocols including ICMP and gRPC Official Prometheus project with regular maintenance
Monitoring runs on the phone, so it depends on the phone's own connection Android only	Needs Prometheus to collect and store results No interface of its own beyond a basic status page
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: Apache-2.0	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.