Run unlimited forms with 500 free monthly submissions and included uploads, then move to 10,000 submissions for $12 per month. Form Plume gives growing sites substantially more runway without giving up signed automation.
Side by side
Form.taxi has a polished European service and several distinctive delivery channels. Form Plume wins the capacity and price comparison, while Form.taxi deserves credit for EU residency, secure webhook delivery, and phone-first notifications. Form.taxi prices below are monthly list prices; its Standard plan is $15 per month with annual billing.
| Decision point | Form Plume | Form.taxi |
|---|---|---|
| Free submissions | 500 / month Twelve times the monthly capacity before upgrading | 40 / month Further entries are locked until the account upgrades |
| Forms on Free | Unlimited One workspace can cover every site and campaign | 3 forms Standard raises the allowance to 15 forms |
| First paid capacity | $12 / month 10,000 submissions on Pro | $18.50 / month 1,000 submissions on Standard; $15 with annual billing |
| File uploads | Included on Free 100 MB storage before a paid subscription | Standard and above 2 GB on Standard; documentation shows a 10 MB file limit |
| Signed webhooks | 1 on Free, unlimited on Pro Signed deliveries and replay protection for downstream code | HMAC-signed on Free Idempotency keys plus retries every 15 minutes for 24 hours |
| Automation and API | Native and long-tail integrations Zapier, Make, MindCloud, native destinations, and signed routes | Four automation services on Free Zapier, Make, Pipedream, and Ottokit; read API starts on Standard |
| Notifications | Email routing and autoresponders Autoresponders begin on Pro with configurable form workflows | Email, WhatsApp, iOS, and Android WhatsApp and autoresponses start on Standard; mobile apps are free |
| Spam and data handling | Layered controls and recoverable quarantine Four CAPTCHA choices, adaptive scoring, rate limits, and blocklists | Machine learning with EU processing Domain and IP checks, email validation, honeypot, and Friendly Captcha |
Where Form Plume pulls ahead
A low-volume contact form can work on either service. The gap becomes meaningful when one account serves several websites, collects files, or needs thousands of submissions without a premium upgrade.
Form.taxi Free allows three forms and 40 submissions per month. Form Plume raises that baseline to unlimited forms and 500 submissions, so a portfolio, newsletter, client inquiry form, and campaign do not compete for a tiny shared quota.
Form Plume Pro provides 10,000 monthly submissions for $12. Form.taxi Standard lists 1,000 for $18.50 monthly or $15 with annual billing, making Form Plume the clearer value once submissions move beyond occasional contact requests.
Form.taxi reserves upload storage for Standard and Premium. Form Plume includes file uploads and 100 MB of storage on Free, letting application forms, support requests, and creative briefs accept attachments before they generate paid-plan volume.
Choose by situation
Agency operating forms for several sites
Form Plume
Unlimited forms and 500 free submissions remove the three-form ceiling and simplify capacity planning across clients.
EU-residency-first organization
Form.taxi
Form.taxi explicitly states that form data is processed and stored in the European Union under GDPR requirements.
Busy lead or application workflow
Form Plume
Uploads on Free and 10,000 Pro submissions provide more economical headroom for documents and campaign spikes.
Team that works from phones and WhatsApp
Form.taxi
Its dedicated iOS and Android apps and direct WhatsApp delivery are distinctive notification options.
FAQ
Choose Form Plume when form count and submission volume matter most. Free includes 500 monthly submissions across unlimited forms, and Pro includes 10,000 for $12 per month. That is substantially more operating room than Form.taxi's 40-submission Free plan and 1,000-submission Standard plan.
Yes at the first paid level. Form Plume Pro costs $12 per month for 10,000 submissions. Form.taxi Standard is $18.50 monthly for 1,000, or $15 per month when billed annually. Compare expected traffic as well as the subscription price because the included capacity differs by ten times.
Usually. Both services receive ordinary HTML form posts. Create a Form Plume endpoint, replace the form action, copy any success-page behavior, and test notifications, attachments, and automation before removing the old connection.
Yes. Form.taxi documents HMAC-SHA256 signatures, a timestamp, an idempotency key, and retries over 24 hours, making its webhook implementation a genuine strength. Form Plume also verifies deliveries with signatures, includes one webhook on Free, and removes the destination limit on Pro.
Form Plume does. Its Free plan includes file uploads and 100 MB of storage. Form.taxi starts upload support on Standard, where it lists 2 GB of storage; its documentation shows a 10 MB per-file validation limit and notes that file-count support varies by plan.
Both provide recoverable spam handling rather than simply discarding every flagged message. Form.taxi combines machine-learning classification, domain restriction, an IP blacklist, email validation, honeypots, and Friendly Captcha. Form Plume adds adaptive scoring, time traps, rate limits, domain controls, email hygiene, blocklists, and four CAPTCHA providers.
Yes if a native phone inbox is essential. Form.taxi offers free iOS and Android apps, and Standard can deliver submission summaries and attachments through WhatsApp. Form Plume focuses on email routing, integrations, and signed webhooks instead of a dedicated mobile app.
Form.taxi makes the more specific public commitment: it says form data is processed and stored within the European Union and describes GDPR-compliant handling. If contractual EU residency is mandatory, verify the current terms with each vendor before choosing; Form Plume should not be selected on an unconfirmed residency assumption.
Yes, on paid plans. Form.taxi includes autoresponse mail and a read API from Standard. Form Plume includes autoresponders, CSV export, and API access on Pro, alongside integrations that can route new submissions into wider workflows.
Stay when its EU processing commitment, WhatsApp channel, mobile apps, or existing signed-webhook setup is more important than higher submission limits. Choose Form Plume when multiple forms, free uploads, paid-plan capacity, or flexible integration routes are the constraints you need to remove.
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