updown.io
Worth it
Confidence: High
Buy it if you run a handful of sites or APIs and want cheap, commitment-free uptime alerts.
New check
Comparison
updown.io lands on Worth it, and Appvizer lands on Depends.
Buy it if you run a handful of sites or APIs and want cheap, commitment-free uptime alerts.
Buyers can use it free as a starting point for European B2B software discovery, but verify everything on G2 or Capterra since it monetizes via vendor lead generation.
| Compare | ||
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | Indie devs and solo founders | EU B2B software discovery |
| Who it's not for | Enterprises needing SOC 2 reports or vendor security reviews | Buyers who need verified, independent user reviews |
| Privacy | No known public vulnerabilities found in the sources reviewed.⁶ | No known public vulnerabilities in reviewed sources; no public security page found. |
| Support quality | Solo founder works 5-10 hours weekly | No buyer support evidence found |
| Public sentiment | Reviewers consistently praise the clean interface and cheap, simple pay-per-check pricing.³ | User reviews of Appvizer itself are scarce . a single 5.0/5 G2 review, and third parties note missing user reviews on listings.14 |
| Biggest gotcha | Costs scale with frequency . 15s checks across many sites add up¹ | Appvizer sells leads to vendors (Mailinblack case study); expect vendor-friendly placements |