Compare
OnChange vs Wachete
Wachete has been around since 2014 and runs a no-frills cloud monitor with email and SMS alerts. OnChange is the developer-first equivalent, with faster checks, API and accessibility coverage, and modern alerting.
Both tools poll URLs and tell you when something changes. The differences are speed, breadth, and how the alert flows into the rest of your stack. If you want a basic always-on watcher with email notifications, Wachete works. If you want sub-minute checks, alerts in Slack and Discord, API monitoring, and a UI built for 2026, OnChange is the modern upgrade.
| Feature | OnChange | Wachete |
|---|---|---|
Free plan available OnChange free: 5 monitors at 30 min, every feature. Wachete free: limited pages and slower intervals. | ||
Cloud-based, no extension required | ||
Sub-minute check intervals Wachete's fastest interval on most plans is 5 minutes; OnChange supports 30s on Business and 10s on Enterprise. | ||
Visual (screenshot) diffs Wachete supports image change detection on higher plans; OnChange includes visual diffs on every plan. | ||
Text and content diff detection | ||
CSS selector + XPath targeting | ||
API / JSON endpoint monitoring Wachete can poll JSON endpoints but lacks a dedicated diff view for response bodies. | ||
AI change summaries on every alert | ||
Causal attribution (Git commit correlation) | ||
WCAG accessibility scans | ||
Free public screenshot tool | ||
Slack / Discord alerts Wachete focuses on email and SMS; OnChange ships Slack and Discord on the free plan. | ||
Custom webhooks | ||
REST API | ||
Team collaboration | ||
Modern, designed UI Wachete's UI is functional and dated; OnChange's product is designed for daily use. |
Comparison based on publicly available information. Wachete's feature set may have changed since publication; please verify on their website.
Pick OnChange if…
- You need sub-minute checks, not 5 to 30 minute intervals
- Your alerts should land in Slack and Discord, not just inbox or SMS
- You want visual diffs, API monitoring, and accessibility scans in one tool
- You ship code and want commit-aware attribution on every change
- You want a clean, modern UI your team will actually open every day
- You need a REST API to programmatically manage monitors from CI or scripts
Pick Wachete if…
- You only need basic email or SMS alerts on a small number of pages
- You're already a Wachete customer with hundreds of monitors and migration risk is high
- Daily or hourly checks are good enough; sub-minute is overkill for your use case
- You don't need API monitoring, accessibility scans, or commit attribution
Pricing
Wachete's paid plans start around 5 EUR/month and scale with monitor count and frequency. OnChange Free is $0 with 5 full-feature monitors; Pro is $12/month for 50 monitors with 60-second checks; Business is $39/month for 300 monitors at 30s. Every plan, including free, includes Slack, Discord, webhooks, REST API access, visual diffs, and AI summaries.
Migrating from Wachete
Wachete supports a CSV export of your watches. Drop the URLs into OnChange and reapply your selectors using the visual selector builder. Notification channels map cleanly: Wachete email becomes OnChange email; add Slack and Discord at the same time since OnChange ships them on every plan. Most teams migrate 20 to 50 watches in under an hour.
Try OnChange free
5 monitors, every feature included, no credit card required. CancelWachetewhenever you're ready.
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