Bouncer Review
Reviewed by Carlos Gil · Founder & Editor, The Best Network
Updated 5 min readEditorially reviewed
Quick facts
- Starting price
- 100 free credits; 1,000 for $8; 10,000 for $60
- Free plan
- Yes
- Best for
- Small teams, agencies and EU-based senders who verify lists irregularly and want credits that keep, plus a Kit or Brevo connector
- Platforms
- Web app, REST API, form widget (Shield), integrations
BestStacked Score
Weighted average of 5 categories. Methodology below.
Quick answer
Is Bouncer worth it?
Bouncer is a strong value pick for list cleaning. On October 19, 2026, credits cost $8 for 1,000, $60 for 10,000 and $400 for 100,000, a monthly subscription took 20% off ($48 for 10,000, $320 for 100,000), and Bouncer says its credits never expire. New accounts get 100 free credits with no card. It refunds addresses it marked deliverable that hard-bounce within 72 hours, and says its deliverable results are over 99% accurate; BestStacked hasn't verified that. It integrates with Mailchimp, Brevo, Kit and Klaviyo, but lists no ActiveCampaign or Zapier connector. Inbox placement and blocklist tests are a separate Deliverability Kit from $25 a month.
- Best for
- Teams that verify lists now and then and want low prices, credits that keep, and Kit, Brevo or Klaviyo connectors.
- Skip it if
- You run ActiveCampaign or rely on Zapier, or you want deliverability tools bundled with your credits.
- Strongest capability
- Low per-check prices with no expiry, free duplicates and unknowns, and a refund for deliverable results that bounce within 72 hours.
- Biggest limitation
- Purchases are non-refundable under terms last updated in 2018, and the integrations list has no ActiveCampaign or Zapier.
- Current cost
- 100 free; 1,000 $8; 10,000 $60; 100,000 $400; Deliverability Kit from $25/mo.
The Verdict
Bouncer combines low prices with the friendliest credit rules of the four verifiers we compared: $60 for 10,000 checks and $400 for 100,000 (20% less on a monthly subscription), no charge for duplicates or unknown results, and credits it says never expire, whether bought once or by subscription. Around verification it sells a Toxicity Check, a form widget called Shield, data enrichment, engagement insights and a separate Deliverability Kit with inbox placement, blocklist and authentication tests from $25 a month. Its integrations page lists 25 tools, including Mailchimp, Brevo, Kit, Klaviyo, HubSpot and Make, but not ActiveCampaign or Zapier. Support is offered by chat, email and video call, with no published hours. Bouncer's terms say all purchases are non-refundable and were last updated in 2018, and its 99% accuracy figure is its own claim. We score Bouncer 8.2/10.
Best for
Teams that clean lists irregularly and want low prices, credits that never expire, and Kit, Brevo or Klaviyo connectors.
Skip if
You need an ActiveCampaign or Zapier connector, or deliverability monitoring included with your credits.
AlternativesZeroBounce, NeverBounce, Kickbox
The Background
What Is Bouncer?
Bouncer is an email verification service run by Bouncer Sp. z o.o. in Wrocław, Poland. You upload a list, connect an email platform or call its API, and it marks each address deliverable, risky, undeliverable or unknown, with deep checks on catch-all domains. Around that core it sells a Toxicity Check that rates addresses from 0 to 5 for breach, complaint, litigator and spam-trap risk, Shield (a form widget that blocks bad addresses at entry), company data enrichment, Email Engagement Insights (last open, click and reply dates), and a Deliverability Kit for inbox placement, blocklist and SPF, DKIM and DMARC tests. Bouncer says data is stored in AWS data centres in the EU. Verification removes addresses likely to bounce but doesn't guarantee inbox placement, and it doesn't make a bought or scraped list lawful to email.
The Product
Bouncer Features: What You Actually Get
List verification and API
Upload a list or call the API: real-time checks run at up to 1,000 requests a minute and batch jobs at 200, drawing on the same credit balance. Duplicates and unknown results cost nothing. Bouncer's Guarantee page says its deliverable results are over 99% accurate, its undeliverable results 100%, and that about 2% of results come back unknown; it doesn't explain how those figures are measured, and BestStacked hasn't verified them.
An agency cleans a client's 30,000-address list before a relaunch and keeps the leftover credits for the next client.
Bounce guarantee
If an address Bouncer marked deliverable hard-bounces within 72 hours of verification, Bouncer says it refunds those contacts as credit or money. Soft bounces and spam complaints aren't covered, and the guarantee only applies to deliverable results.
A marketer sends within a day of cleaning and claims credit back for the handful of deliverable addresses that bounced.
Toxicity Check, Shield and enrichment
Toxicity Check rates addresses from 0 to 5 for risks such as breached or widely circulated addresses, complainers, litigators and possible spam traps; its pricing isn't shown on the pricing page. Shield adds real-time verification to forms without code, priced per monthly check plus $5 per shield. Enrichment adds public company data, and Engagement Insights shows last open, click and reply dates.
An ecommerce brand puts Shield on its pop-up form and runs Toxicity Check on an old list before a win-back campaign.
Deliverability Kit
A separate subscription for inbox placement tests, IP and domain blocklist tests, SPF, DKIM and DMARC tests and SpamAssassin checks: Starter $25 a month (250 test emails, 10 IPs or domains monitored), Standard $125 (1,000 and 25) and Pro $250 (2,500 and 50).
A newsletter checks inbox placement and blocklists monthly on Starter while buying verification credits only when it imports new lists.
Feature recap
- List verification and real-time API on one credit balance
- Duplicates and unknown results free
- 72-hour bounce guarantee on deliverable results
- Toxicity Check (0-5) for breach, complaint and litigator risk
- Shield form widget for real-time sign-up checks
- Deliverability Kit from $25/mo
- 25 listed integrations incl. Mailchimp, Brevo, Kit, Klaviyo, HubSpot, Make
- EU data hosting and GDPR focus, per Bouncer
The Numbers
Bouncer Pricing: Every Plan Explained
These are USD prices from Bouncer's pricing page on October 19, 2026, read in a browser. One credit verifies one address; checkout accepts several currencies.
| Plan | Monthly | Annual | Included Features | Best For |
|---|---|---|---|---|
| Free | $0 | $0 | 100 free credits to start; no credit card required | Testing results on a sample |
| Pay as you goBest value | From $8 for 1,000 | One-time purchases | 1,000 $8; 5,000 $35; 10,000 $60; 50,000 $250; 100,000 $400; 250,000 $750; 500,000 $1,250; 1,000,000 $2,000. Credits never expire, per Bouncer | Irregular list cleaning |
| Monthly subscription | 20% off: 10,000 for $48/mo | Monthly only | The same credit amount delivered each month at a discount: 10,000 for $48 (instead of $60), 100,000 for $320 (instead of $400); unused credits don't expire, per Bouncer's FAQ | Predictable monthly volume |
| Deliverability Kit | From $25/mo | Monthly | Starter $25 (250 test emails, 10 IPs/domains); Standard $125 (1,000, 25); Pro $250 (2,500, 50); Enterprise custom | Inbox placement and blocklist monitoring |
Pricing scenarios (our arithmetic from Bouncer's published USD prices, checked October 19, 2026). Cleaning 10,000 addresses costs $60, against $50 at NeverBounce, $70 at Kickbox and $129 at ZeroBounce pay-as-you-go. At 100,000 it's $400, the same as NeverBounce and below Kickbox ($500) and ZeroBounce ($649). The monthly subscription took 20% off in the calculator ($48 for 10,000 and $320 for 100,000 a month), and Bouncer says subscription credits don't expire either, so unused months aren't wasted. The bigger difference is expiry: NeverBounce credits expire after 12 months and Kickbox's after one year, while Bouncer says its credits never expire, so leftover credits from a large pack keep their value. Two cautions: Bouncer's terms say all purchases are non-refundable, and they were last updated on August 24, 2018 and don't mention credit expiry at all, so the never-expire promise lives on the pricing page and FAQ rather than in the contract.
Read before you buy
Bouncer's fine print
Credit expiry: the pricing page and FAQ say credits never expire, for both one-off purchases and the subscription. Bouncer's terms and conditions (usebouncer.com/terms-and-conditions, last updated August 24, 2018) don't mention expiry either way. All three read on October 19, 2026.
Refunds: the terms say "All purchases are non-refundable." The separate Bouncer Guarantee refunds addresses marked deliverable that hard-bounce within 72 hours, as credit or money; it doesn't cover soft bounces, spam complaints or unknown results.
Accuracy: Bouncer's Guarantee page claims over 99% accuracy for deliverable results and 100% for undeliverable ones, and its homepage says fewer than 2% of results are unknown. We found no published method behind those figures. Treat them as Bouncer's claims.
Scoring
How the score is built
BestStacked weights five sub-scores: ease of use 20%, features 25%, pricing 20%, support 15% and integrations 20%. For Bouncer they come only from its own pages, not from testing, on the same scale as our ZeroBounce review (8.3). Ease of use 8.6: 100 free credits with no card, one credit balance, a no-code form widget and API sandbox addresses. Features 8.2: verification with deep catch-all checks, Toxicity Check, Shield, enrichment, engagement insights and a bounce guarantee, with deliverability tools sold separately; accuracy figures are unexplained vendor claims. Pricing 8.6: low prices at every volume and credits that don't expire, offset by non-refundable purchases, 2018-dated terms and a Deliverability Kit that costs extra. Support 7.8: chat, email and video calls are offered, with no published hours or phone line. Integrations 7.6: 25 listed, including Mailchimp, Brevo, Kit, Klaviyo, HubSpot and Make, but no ActiveCampaign or Zapier listing. That works out to 8.2 out of 10.
The Tradeoffs
Bouncer Pros and Cons
What we love
- $60 for 10,000 checks and $400 for 100,000
- Credits never expire, per Bouncer
- Duplicates and unknown results free
- Refund for deliverable results that bounce within 72 hours
- Mailchimp, Brevo, Kit and Klaviyo integrations
- EU data hosting
What could be better
- All purchases non-refundable; terms dated 2018
- No ActiveCampaign or Zapier integration listed
- Deliverability Kit costs extra (from $25/mo)
- No published support hours or phone line
- Accuracy figures are unexplained vendor claims
The Audience
Who Should Use Bouncer?
Best for: irregular list cleaning
If you verify a list every few months, credits that don't expire mean a $400 pack of 100,000 keeps its value between campaigns.
Best for: Kit, Brevo and Klaviyo users
Bouncer is the only verifier of the four with a listed Kit integration, and it also connects to Brevo, Klaviyo and Mailchimp.
Skip if: you run ActiveCampaign or Zapier workflows
Neither appears on Bouncer's integrations page; Make, Pabbly and Integrately are listed instead. NeverBounce and Kickbox list both.
The Methodology
How We Reviewed Bouncer
This is an editorial review, not a hands-on test. BestStacked didn't use Bouncer for this review and makes no accuracy, speed or deliverability claims of its own; the accuracy and unknown-rate figures are Bouncer's published claims. The review is based on Bouncer's own pages, checked on October 19, 2026: the pricing page (read in a browser, pay-as-you-go and subscription views, Deliverability Kit and Shield tabs), the Bouncer Guarantee page, the terms and conditions, the FAQ, the homepage, the API page and API documentation, and the integrations page. Competitor prices come from each vendor's own pricing page the same day. BestStacked has no affiliate relationship with Bouncer.
Our editorial evaluation considers product information, official documentation, pricing, features and professional experience. It is not a claim of documented hands-on testing.
Our review methodology →What changed
- : First published. Editorial review based on Bouncer's pricing page (read in a browser), Guarantee page, terms, FAQ, homepage, API page and docs, and integrations page, all checked October 19, 2026.
The Field
Bouncer vs The Competition
Prices below were read on each vendor's own pricing page on October 19, 2026, in USD.
| Tool | Starting Price | Free plan | Best Feature | BS Score |
|---|---|---|---|---|
| Bouncer | 100 free credits; 1,000 for $8; 10,000 for $60 | Yes | List verification and API | 8.2/10 |
| ZeroBounce | Free 100 credits/mo; 10,000 for $129; ONE from $99/mo (10,000) | Yes | Verification and deliverability tools on one plan | 8.3/10 |
| NeverBounce | $8 per 1,000; 10,000 for $50; Growth from $49/mo | No | CRM auto-sync on the Growth plan | 8.1/10 |
| Kickbox | 100 free; 10,000 for $70; 100,000 for $500 | Yes | Developer-friendly API with a sandbox | 7.9/10 |
ZeroBounce: ZeroBounce costs about twice as much per check pay-as-you-go but bundles warmup, inbox tests and blacklist and DMARC monitoring into its ONE subscription, and gives 100 free credits every month.Read our ZeroBounce review →
NeverBounce: NeverBounce is a little cheaper at 10,000 ($50) and the same at 100,000 ($400), but its credits expire after 12 months. It lists ActiveCampaign and Zapier integrations, which Bouncer doesn't.Read our NeverBounce review →
Kickbox: Kickbox costs more at volume, its credits expire after a year, and its API page lists higher prices than its pricing page. It has native ActiveCampaign and Zapier connections.Read our Kickbox review →
In The Wild
How People Actually Use Bouncer
A creator on Kit
Connect the Kit integration and clean the list before a launch: 10,000 subscribers cost $60, and the leftover credits stay in the account for next time.
An agency with many small clients
Buy a 50,000-credit pack for $250 and spend it across clients over months without worrying about expiry. Add Toxicity Check for lists of unknown origin.
A store protecting its sign-up form
Add Shield to the form for real-time checks, priced per monthly check plus $5 per shield, and run the Deliverability Kit's Starter plan ($25 a month) to watch blocklists.
The Ecosystem
Bouncer Integrations
Bouncer's integrations page listed 25 tools on October 19, 2026, plus an API, an MCP server and Make for anything else.
- →Mailchimp, Brevo, Kit (ConvertKit), Klaviyo, MailerLite and AWeber
- →Constant Contact, GetResponse, Moosend, Mautic and User.com
- →HubSpot and Pipedrive
- →lemlist, Woodpecker and QuickMail for cold email
- →Make, Pabbly, Integrately, Viasocket, OttoKit and Lindy
- →RapidAPI, REST API and an MCP server for AI assistants
ActiveCampaign and Zapier weren't on Bouncer's list on October 19, 2026; Make or the API can bridge them.
Common Questions
Bouncer FAQ
The Final Word
Should You Use Bouncer?
Bouncer is the best value of the four verifiers we compared for teams that clean lists irregularly: prices match or beat its rivals at most volumes, duplicates and unknowns are free, and its credits don't expire. It's also the only one with a listed Kit integration. Watch the fine print: purchases are non-refundable under 2018-dated terms, ActiveCampaign and Zapier aren't on its integrations list, deliverability tools cost extra, and its accuracy figures are its own claims. We score Bouncer 8.2/10.
Yes, if
you clean lists now and then and want low prices, credits that keep, and a Kit, Brevo or Klaviyo connector
No, if
you depend on ActiveCampaign or Zapier, or want warmup and monitoring bundled with verification
About the reviewer
Carlos Gil
Founder & Editor, The Best Network
Carlos Gil is the Founder & Editor of The Best Network, bestselling author of The End of Marketing, and a LinkedIn Top Voice. His digital marketing career began in 2008 and spans corporate roles at LinkedIn and BMC Software, consulting for global brands, creator partnerships, and building his own businesses.
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