Kickbox vs Bouncer: Pricing, Accuracy and Which to Choose for SaaS

Bouncer is cheaper than Kickbox at every volume, from $8 per 1,000 credits down to $2 per 1,000 at one million. Bouncer credits never expire, and Bouncer does not charge for unknown results or duplicates.

Kickbox starts lower, at $5 for 500 credits, and adds the Sendex quality score to every result. Kickbox credits expire 12 months after purchase.

Choose Bouncer for large lists, irregular cleaning and deliverability testing. Choose Kickbox if you want a per-address quality score and the larger review base on G2.

Key facts at a glance

• Bouncer pay-as-you-go price: $8 for 1,000 credits, $60 for 10,000, $400 for 100,000, $2,000 for 1,000,000.
• Kickbox pay-as-you-go price: $10 for 1,000 credits, $70 for 10,000, $500 for 100,000, $2,999 for 1,000,000.
• Kickbox smallest pack: $5 for 500 credits.
• Bouncer credit expiry: never.
• Kickbox credit expiry: 12 months after purchase.
• Free credits: 100 on Bouncer (no card) and 100 on Kickbox.
• Kickbox quality score: Sendex, from 0 to 1, on every result.
• Bouncer deliverability tools: Deliverability Kit, from $25 a month.
• G2 rating: Bouncer 4.8 from 338 reviews; Kickbox 4.5 from 677 reviews.

Sources: Bouncer pricing, Kickbox tiers as listed by Outmano and Modern Inbound, G2, and Kickbox policy details from Unspam and Mailflow Authority. Check both vendors’ calculators before you buy.

What is Kickbox?

Kickbox is a pay-as-you-go email verification service with a real-time API and bulk list cleaning. Kickbox sells credits with no subscription, in volume tiers from 500 to 1,000,000.

Kickbox returns four main results: deliverable, undeliverable, risky and unknown. Kickbox adds a Sendex score from 0 to 1 that rates the quality of each address, not just whether it exists.

What is Bouncer?

Bouncer is an EU-based email verification service that cleans lists in bulk and checks addresses in real time through its API. Bouncer sells pay-as-you-go credits that never expire.

Bouncer also offers a Deliverability Kit (inbox placement and blocklist tests), Bouncer Shield (signup form protection), AutoClean (automatic CRM list cleaning) and a Toxicity Check. Bouncer describes itself as GDPR-compliant by design.

Pricing: which is cheaper at scale?

Bouncer is cheaper than Kickbox at every volume from 1,000 credits up. The gap grows with list size: $10 at 10,000 checks, $100 at 100,000 and $999 at one million.

Kickbox pricing

• 500 credits: $5 ($10 per 1,000).
• 10,000 credits: $70 ($7 per 1,000).
• 100,000 credits: $500 ($5 per 1,000).
• 1,000,000 credits: $2,999 (about $3 per 1,000).
• No subscription; every purchase is a one-off credit pack.

Bouncer pricing

• 1,000 credits: $8 ($8 per 1,000), the minimum purchase.
• 10,000 credits: $60 ($6 per 1,000).
• 100,000 credits: $400 ($4 per 1,000).
• 1,000,000 credits: $2,000 ($2 per 1,000). Above one million, Bouncer quotes a custom price.
• Deliverability Kit: $25, $125 or $250 a month, bought separately from verification credits.

Which is cheaper for your use case?

• A one-off list under 500 addresses: Kickbox’s $5 pack is the cheapest entry.
• 10,000 to 100,000 checks: Bouncer saves $10 to $100 per purchase.
• Credits bought in advance: Bouncer credits never expire; Kickbox credits are lost after 12 months.
• Catch-all-heavy B2B lists: Bouncer never charges for unknown results; Kickbox usually refunds them as credits, so check your account terms.

Do Kickbox and Bouncer credits expire?

Kickbox credit expiry

Kickbox credits expire 12 months after purchase. Buy only what you will use within a year.

Bouncer credit expiry

Bouncer credits never expire, whether you buy them on demand or through a subscription.

How unknown results and duplicates are billed

Bouncer states it never charges for duplicate addresses or “unknown” results. Most independent reviews say Kickbox refunds unknown results as credits; one review says unknowns still use a credit, so confirm the rule in your Kickbox account.

Accuracy and catch-all handling

What each vendor claims

Bouncer claims 99.5%+ accuracy on its own comparison page. Kickbox reports 97.5%+ accuracy for deliverable results, according to Mailflow Authority. Neither figure comes from an independent audit.

How Kickbox handles catch-all addresses

Kickbox classifies accept-all (catch-all) addresses as “risky”, with the reason “low deliverability”. The Sendex score helps decide which risky addresses are worth sending to.

How Bouncer handles catch-all addresses

Bouncer detects catch-all domains and reports them separately from deliverable addresses. Bouncer’s Toxicity Check can add a further risk signal for each address.

What G2 reviewers say

On G2, Bouncer scores higher than Kickbox on ease of use (9.7 vs 9.4), quality of support (9.5 vs 8.7), ease of setup (9.6 vs 9.4) and meeting requirements (9.5 vs 9.1). Kickbox has twice as many reviews (677 vs 338).

For a fair test, run the same 500 to 1,000 known addresses through both tools with their free credits, as described in our ZeroBounce vs NeverBounce comparison. Catch-all limits apply to every verifier: why no validator can be fully certain about catch-all domains.

Kickbox vs Bouncer for SaaS signups

SaaS teams use email verification at signup to block fake, mistyped and disposable addresses before they reach the product or the CRM.

Real-time API

Kickbox and Bouncer both offer a real-time verification API for checking an address when a user submits a form. Both APIs return the result in time to show an error before the account is created.

No-code form protection

Bouncer offers Bouncer Shield, a no-code layer that protects signup forms. Kickbox relies on its API, so a developer adds the check to the form.

Free-trial abuse

Disposable and throwaway addresses are the main source of free-trial abuse. Both tools flag disposable addresses; see how to prevent free trial abuse with email verification and how to detect fake and disposable emails at signup.

Which is better for a SaaS startup?

Bouncer suits a SaaS startup that wants no-code form protection, credits that never expire and lower prices as signups grow. Kickbox suits a team that wants a per-address quality score in its own signup logic.

Features, integrations and compliance

Integration counts come from third-party reviews. Check that your ESP or CRM is on each vendor’s list before you buy.

Which should you choose?

Gamalogic: an alternative to Kickbox and Bouncer

Gamalogic is an email validation API and bulk verifier. Gamalogic is worth testing alongside Kickbox and Bouncer if you need deeper checks on B2B domains (see pricing).

Gamalogic pricing

Gamalogic charges $5 to $7 per 1,000 credits. 10,000 checks cost $50 to $70 on Gamalogic, compared with $60 on Bouncer and $70 on Kickbox.

Gamalogic credit expiry

Gamalogic credits never expire. The same credits cover real-time checks, bulk lists and email finding.

How Gamalogic handles catch-all and protected domains

Gamalogic runs dedicated catch-all validation instead of only labelling catch-all addresses as risky. Gamalogic also checks addresses behind secure email gateways and on servers that use SMTP tarpitting, the cases that cause most unknown results on B2B lists.

Gamalogic for SaaS signups

Gamalogic validates signups through a real-time API or a no-code JS widget, and flags disposable addresses used for free-trial abuse. See how SaaS teams use it in email validation for SaaS.

Gamalogic free credits

Gamalogic gives 500 free credits on signup, with no card. That is five times the 100 free credits on Kickbox and Bouncer, and enough to test all three on the same list.

Compare Gamalogic head to head

• Kickbox vs Gamalogic
• Bouncer vs Gamalogic

Run the same test file through Kickbox, Bouncer and Gamalogic, then validate your list free.

Frequently asked questions

Is Kickbox or Bouncer cheaper?

Bouncer is cheaper at every volume from 1,000 credits. Bouncer costs $400 for 100,000 checks and $2,000 for one million, while Kickbox costs $500 and $2,999.

Is Kickbox or Bouncer better for a SaaS startup?

Bouncer is usually the better fit for a SaaS startup, because it offers no-code form protection, lower prices and credits that never expire. Kickbox suits teams that want a Sendex quality score in their own signup logic.

Do Kickbox and Bouncer credits expire?

Kickbox credits expire 12 months after purchase. Bouncer credits never expire.

Do Kickbox and Bouncer charge for unknown results?

Bouncer does not charge for unknown results or duplicates. Most reviews say Kickbox refunds unknown results as credits; confirm the rule in your Kickbox account.

Do Kickbox and Bouncer have free plans?

Kickbox and Bouncer each give 100 free credits. Bouncer’s free credits need no card.

Which has better reviews, Kickbox or Bouncer?

Bouncer rates 4.8 on G2 from 338 reviews, and Kickbox rates 4.5 from 677 reviews. Bouncer scores higher on ease of use and quality of support.

What is a good alternative to Kickbox and Bouncer?

Gamalogic is an alternative with 500 free credits, $5 to $7 per 1,000 credits and credits that never expire. Gamalogic includes catch-all, secure email gateway and SMTP tarpitting checks.

Test Kickbox, Bouncer and Gamalogic on your own list.

Gamalogic gives you 500 free credits with no card, enough to compare all three on the same file, and your credits never expire.