Side by side
OnWebChange vs Perfmatters
Both stand on website monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidAPIiPhone+1
OnWebChange covers targeted webpage monitoring, documents, and protected pages, with several alert channels and tracker-management options. Its free tier is limited to three daily-monitored trackers; paid monthly plans add capacity, including unlimited trackers on Standard.
Visit OnWebChange Paid Self-hosted
Perfmatters provides detailed WordPress performance controls across scripts, databases, media, and CSS. Review the yearly renewal terms and the absence of monitoring features alongside the optimisation toolkit.
Visit PerfmattersThe facts
| OnWebChange | Perfmatters | |
|---|---|---|
| Free plan | Yes | No |
| Open source | Not published | Not published |
| Runs on | Android, API, iPhone, Web | Self-hosted |
| Lowest paid plan | Lite: €0.89 a month | 1 Site – Personal: $29.95 a year |
| Plans published | 5 | 3 |
| Maker | Not published | Not published |
| Website | onwebchange.com | perfmatters.io |
| On website monitoring software | #6 of 55 | #51 of 55 |
OnWebChange: what it does well
- Tracks selected elements such as prices and headlines
- Supports dynamic JavaScript-loaded pages
- Can monitor PDFs, images, and text files
- Checks can run as often as every 5 minutes
What to know first
- Free plan is limited to 3 trackers
- Free plan uses basic daily monitoring
- Pushover is a third-party mobile notification service
Perfmatters: what it does well
- Per-page and device script controls
- Scheduled database cleanup
- Lazy loads multiple media types
- Supports WebP and AVIF
- Includes developer support and documentation
What to know first
- Paid self-hosted WordPress plugin
- Licenses renew yearly
- Auto-renew is enabled by default
- No SSL or latency monitoring
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