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Should I use Claspo — Popup Builder?

Create high-converting popups in minutes. Free CRO-ready popup templates designed to grow your email list, drive sales, and increase revenue. - claspo.io

Depends. Independent evidence on Claspo is thin — no third-party reviews or published pricing surfaced in the sources reviewed. Worth a free test for small list-building sites, but OptiMonk or OptinMonster have far more user proof behind them.

Confidence

Low. Based on 14 public sources; most cover competitors or the unrelated WordPress 'Popup Builder' plugin — Claspo-specific evidence is thin, hence low confidence.

Ratings

  • Value for money
  • Ease of use
  • Feature depthNo feature evidence found
  • Support qualityNo user support evidence found
  • Security postureNo security page found in crawl

Pricing

Not disclosed

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Small stores growing email lists
  • Marketers testing free popup templates
  • Non-technical site owners

Not for

  • Buyers wanting a proven vendor — no independent reviews found
  • Teams needing published pricing before signup
  • Anyone expecting a documented security posture
  • Guess: large CRO teams needing advanced analytics and testing depth

Gotchas - check before you buy

medium

'Free' is the only pricing signal — expect limits on impressions or features once you scale

low

Name collides with WordPress 'Popup Builder' plugin; CVE-2023-6000 hit 3,300+ sites. Different product

low

Security page not found in crawl — posture undocumented

Pros and cons

Pros

  • Free CRO-ready popup templates for email capture and sales
  • Advertises fast popup creation — 'in minutes'
  • Free plan lowers the risk of testing popups

Cons

  • Not named in the '20 Best Popup Apps for 2026' roundup reviewed
  • Name collides with a compromised WordPress plugin (CVE-2023-6000)
  • No published pricing tiers surfaced in sources reviewed

Sources & method

Analyzed 9/24/2026 - 10 sources - No known vulnerabilities found in the sources reviewed.

official x3review x3security x2news x2

Key stats

  • Value for money: 4/5

    Rating

  • Not disclosed

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 4/5. Free tier advertised; paid terms unverified
  • Ease of use: 4/5. Advertises 'in minutes' setup
  • Feature depth. No feature evidence found
  • Support quality. No user support evidence found
  • Security posture. No security page found in crawl
  • Yes Free tier Advertised on homepage
  • 0 Claspo reviews found No third-party ratings in sources reviewed
  • 5+ Competitors in evidence OptiMonk, Wisepops, Popupsmart, OptinMonster, Popup Maker
  • CVE-2023-6000 Name-collision CVE WP 'Popup Builder' plugin, 3,300+ sites — different product

Pricing

Free tier: Yes

Security

No known vulnerabilities found in the sources reviewed.

What users say

No independent user reviews of Claspo surfaced; the one Reddit thread reviewed praises competitor OptiMonk instead.

Full analysis

Based on 14 public sources; most cover competitors or the unrelated WordPress 'Popup Builder' plugin — Claspo-specific evidence is thin, hence low confidence.

Free popup builder, zero independent reviews found. Fine to test free; think twice before paying.

Methodology

Based on 14 public sources; most cover competitors or the unrelated WordPress 'Popup Builder' plugin — Claspo-specific evidence is thin, hence low confidence.

Sources

  1. Claspo homepageclaspo.io
    official
  2. 20 Best Popup Apps for 2026 — Maestramaestra.io
    review
  3. Popupsmart homepagepopupsmart.com
    official
  4. Popup Maker — WordPress.orgwordpress.org
    official
  5. Reddit r/Wordpress — popup plugin discussionreddit.com
    review
  6. Best WordPress Popup Plugins 2026 — MonsterInsightsmonsterinsights.com
    review
  7. Hackers Compromised 3,300 Websites via Popup Builder CVEcybersecuritynews.com
    news
  8. Balada Injector exploited Popup Builder flaw — SecurityAffairssecurityaffairs.com
    news
  9. WPScan — Popup Builder pluginwpscan.com
    security
  10. Claspo security page (not found)claspo.io
    security

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