Side-by-side comparison · 24 data points
| Contact Form to Any API | Theme.id's Caldera Form to Slack | |
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| Tagline | — | — |
| Description | ||
| Screenshots | — | — |
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| Metric | Contact Form to Any API | Theme.id's Caldera Form to Slack |
|---|---|---|
| Rating | 5.0 ★ | — |
| Total reviews | 28 | 0 |
| Active installs | 8,000+ | 0+ |
| Free plan | — | — |
| Built for Shopify | — | — |
Based on the data on this page, Contact Form to Any API is the stronger choice for most WordPress Plugin Directory merchants — 5.0★ vs Theme.id's Caldera Form to Slack's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to Contact Form to Any API; mid-market and enterprise merchants with specific feature requirements should evaluate both — Theme.id's Caldera Form to Slack's 0-review base may include the workflow context that matches your specific use case better than Contact Form to Any API's broader-but-shallower coverage. This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical WordPress Plugin Directory listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Contact Form to Any API audit • Theme.id's Caldera Form to Slack audit
| Keyword | Contact Form to Any API | Theme.id's Caldera Form to Slack |
|---|---|---|
| contact form | #35 | Not ranked |
| feedback form | #35 | Not ranked |
| contact | #39 | Not ranked |
| chat bot | Not ranked | #537 |
It depends on what you're optimizing for. Contact Form to Any API fits better if you prioritize rating consistency; Theme.id's Caldera Form to Slack is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the WordPress Plugin Directory marketplace. Contact Form to Any API has more onboarding documentation maturity (28 reviews vs 0), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Contact Form to Any API typically suits early-stage and growth-mode stores based on its review-base composition (28 reviews). Theme.id's Caldera Form to Slack aligns more with early-stage and growth-mode stores (0 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. Contact Form to Any API and Theme.id's Caldera Form to Slack both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Theme.id's Caldera Form to Slack" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
