Formspark Alternative

Formspark and Formboost price forms in genuinely different ways, and that — not a feature checklist — is what the choice comes down to. Formspark sells a one-time upgrade bundle with no renewal. Formboost is a monthly subscription with a permanent free tier. Which is better depends almost entirely on how long the form has to keep running and what it has to talk to.

• •Formspark's free plan covers 250 submissions across 10 forms, with spam filtering and email notifications.
• •Formspark's paid tier is a one-time purchase (currently $25, listed down from $50) covering 50,000 submissions, webhooks, Slack/Zapier and a REST API, with no automatic renewal.
• •Formboost's free plan covers 500 submissions/month across 10 forms, and includes Slack, Discord and Telegram delivery.
• •Formboost's custom webhooks are a $9/mo subscription; Formspark's are part of the one-time bundle.

Formspark's pricing page is the current source. The free plan includes 250 submissions, 10 forms, 5 team members, spam filtering and email notifications — a real free tier, not a trial.

Above that sits a single "Upgrade" bundle, currently listed at $25 (discounted from $50), as a one-time purchase with no automatic renewal. It covers 50,000 submissions, 100 forms, 50 team members, webhooks, Slack and Zapier integrations, custom spam rules, autoresponders and a REST API.

That is an unusual model in this category, and for a form you'll run for years without much traffic, paying once is straightforwardly cheaper than any subscription. It's worth saying so plainly rather than pretending otherwise.

Formboost is monthly, and puts the chat destinations on the free plan:

Note the free-submission rows carefully: Formspark's 250 is a total, Formboost's 500 is per month. For a form that runs continuously, that's the difference that compounds.

No REST API. Formspark's Upgrade bundle includes one. Formboost's only public API is the submission endpoint, POST /f/{alias}, which receives posts and does not read them back — there's no account API, no CLI and no SDK. If you want to query submissions from a script, Formspark's bundle does that and Formboost does not.

No file uploads. They're on the roadmap and not shipped.

An earlier version of this post said Formspark had no free tier and that Formboost included a REST API. Both were wrong, and the first was wrong about a named company, which is worse.

Native chat delivery on the free plan. Slack, Discord and Telegram are all free tiers on Formboost. Formspark's Slack integration is part of the Upgrade bundle, and it documents no native Discord or Telegram destination at all. For a form whose entire job is "tell the team in Discord," that's the deciding row.

Per-month rather than lifetime allowance. 500 submissions every month, renewing, versus 250 total on Formspark's free plan.

Spam screening that scales. Free runs heuristics — disposable domains, link floods, honeypot hits, rate limiting. Starter adds an AI model that reads the submissions heuristics can't call either way, against a description of what the form is for. Pro runs it on every submission. Each one gets a score and a readable reason in the dashboard.

Formspark offers basic filtering free and integrates Botpoison, hCaptcha, reCAPTCHA and Turnstile on the Upgrade bundle. That's a captcha-and-rules approach rather than a scoring model; both stop spam, and the difference is what you configure and what the user has to click.

Both take an ordinary HTML form post, so the change is the action attribute:

<form action="https://formboost.app/f/YOUR_ALIAS" method="POST">
  <input type="text" name="name" required />
  <input type="email" name="email" required />
  <textarea name="message"></textarea>
  <button type="submit">Send</button>
</form>

Field names become your submission columns, so markup and validation carry over. Posting with fetch returns 202; a plain form post returns a 302 to your _redirect target.

Export your Formspark submissions before switching — Formboost doesn't import them. The full walkthrough is in the migration guide.

• •A low-traffic form you'll run for years stays free on Formboost — 500 submissions a month, renewed monthly, with no bundle to buy or top up.
• •A form that posts to Discord or Telegram is free on Formboost; Formspark has no native destination for either.
• •A form doing more than 250 submissions total outgrows Formspark's free allowance; Formboost's resets every month.
• •A form whose submissions you query from code has no read API on Formboost — use CSV export or a webhook on Starter.
• •Several forms across projects, growing fit Formboost's monthly free tier and the $9/mo Starter step.

Both sides change their pricing. These figures were checked in August 2026 against Formspark's pricing and Formboost's.