We haven’t finished verifying this product’s pricing and capabilities from official sources, so comparisons here are incomplete. Vendors: claim this listing to speed it up.
Calibre
Website Audit & Monitoring · calibreapp.com
Calibre is a web performance monitoring platform that combines Real User Monitoring, Google CrUX Core Web Vitals data and scheduled synthetic page speed tests.
Switching to GTmetrix, which covers 67% of the compared capabilities.
Find my alternative
Way less money.
Top Calibre alternatives
We compared 7 products and found 4 cheaper alternatives · vs Calibre Starter at $75/mo · scenario: single user, monthly billing, USD.
Calibre costs $75/mo on the Starter plan at single user, monthly billing. We found 4 assessed alternatives that are cheaper in this scenario; 0 of them cover at least 75% of the 3 compared capabilities.
| Product | Match | Price | Annual savings | |
|---|---|---|---|---|
TOP PICK GTmetrix Lite plan · missing: Multiple sites | 67% | $5.99/mo how? ⓘ | $828.12 / year 92% cheaper | |
Sitebulb Lite plan · missing: Performance checks, Scheduled monitoring, Multiple sites | 0% | $18/mo how? ⓘ | $684 / year 76% cheaper | |
EngineeringScore Starter plan · missing: Multiple sites | 67% | $19/mo how? ⓘ | $672 / year 75% cheaper | |
Seobility Premium plan · missing: Performance checks | 67% | $67.02/mo how? ⓘ | $95.76 / year 11% cheaper |
Which Calibre alternative for which situation
Picked by the numbers in this scenario — same subtype unless stated, assessed products only.
What you give up
Capabilities Calibre has that the top alternatives lack.
- Performance checks — Performance and Core Web Vitals checks.Missing from Seobility, Sitebulb.
- Scheduled monitoring — Automatic re-scans on a schedule.Missing from Seobility, Sitebulb.
- Multiple sites — Monitor several sites on one plan.Missing from Seobility, GTmetrix, Sitebulb, EngineeringScore.
Feature comparison
Calibre vs the top alternatives, on the 3 compared capabilities.
| Capability | Calibre | Seobility | GTmetrix | Sitebulb | EngineeringScore |
|---|---|---|---|---|---|
| Performance checks from Starter | ✓ | ✗ | ✓ | ✗ | ✓ |
| Scheduled monitoring from Starter | ✓ | ✗ | ✓ | ✗ | ✓ |
| Multiple sites from Starter | ✓ | ✗ | ✗ | ✗ | ✗ |
| Scenario price cheapest qualifying plan | $75/mo Starter | $0/mo Basic (Free) | $5.99/mo Lite | $18/mo Lite | $19/mo Starter |
✓ means the product offers the capability — possibly only on a higher tier than the plan priced below it. The price row shows the cheapest plan that qualifies for our comparison scenario, with its plan name; a $0 free plan may not include every checked capability.
What Calibre covers
The capability set used for comparison. Grey entries are not available on self-serve plans.
- ✓ Performance checks — from Starter
- ✓ Scheduled monitoring — from Starter
- ✓ Multiple sites — from Starter
Price ladder
Observed prices from the official pricing page.
Sources
Every claim traces to an official source and a check date.
- https://calibreapp.com/pricing (official_pricing, checked 2026-10-27)
- https://calibreapp.com/pricing#main-content (official_pricing, checked 2026-10-27)
Frequently asked
How much does Calibre cost?
Calibre's Starter plan costs $75/mo in our scenario (single user, monthly billing).
Is there a free Calibre alternative?
Yes. Seobility has a free plan that covers 0% of the 3 capabilities we compared against Calibre.
What is the cheapest Calibre alternative?
In our scenario (single user, monthly billing), Seobility is the cheapest assessed alternative at $0/mo (Basic (Free) plan).
Does Calibre have a free plan?
No. Calibre has no free plan on its official pricing page.
When were these prices checked?
Between 2026-10-27 and 2026-10-27, on the vendors' official pricing pages.