DeBounce Cleans Email Lists.1Lookup Validates Everything.
DeBounce cleans email lists, but only email. 1Lookup delivers multi-service validation from one credit balance. As the leading DeBounce alternative, we offer phone + email + IP validation in one platform with a fraud score on every lookup.
Two ways to clean an email list
DeBounce is a low-cost bulk email cleaner. 1Lookup adds real-time verification plus phone and IP on the same key.
The 1Lookup approach
- Real-time email checks: syntax, domain, MX, SMTP, catch-all, disposable, and role-based
- A deliverability read and a fraud score on every address
- The same API key also validates phone numbers and IP addresses
- One real-time endpoint plus bulk list cleaning, drawn from one credit balance
- Data checked in real time, identical lookups cached for 7 days
- Live in about 5 minutes, with 1,000 requests/min included
The DeBounce approach
- Bulk email list cleaning with pay-as-you-go pricing
- Focus on removing invalid and risky addresses
- Real-time API available
- Email-only, no phone or IP validation
- Positioned on low bulk pricing
For cheap one-off list cleaning, DeBounce is straightforward. If you want validation you can wire into signups and calls across email, phone, and IP, 1Lookup covers all three.
Good tool, no fluff
Been using 1Lookup for a couple months now. We verify leads before pushing them into Pipedrive. Honestly it just works. Not fancy, not buggy, and the support actually answers when you write them. Can't really ask for more.
Brian LetzterUnited States · October 2025The most practical data tool I've used
I've seen hundreds of validation APIs come and go. 1Lookup stands out because they don't oversell. Their data is solid, support is honest, and they're transparent about limitations, which is rare in this industry. I've replaced three tools with this one. They listen, they iterate, and they keep improving. You can feel there are actual engineers behind it, not just salespeople.
Bùi Thị Thanh NgọcVietnam · October 2025Solid phone validation API
We use 1Lookup inside our telemarketing app to verify numbers before they go to the dialer. Setup was simple and the results have been consistent. It's not overloaded with features, just fast, accurate, and reliable. Docs could be a bit deeper, but honestly, it works out of the box.
Dirk van MeerUnited States · December 2025Saved us from hundreds of spam signups
We run a SaaS product with free trials and were getting flooded with bots and fake users. After integrating 1Lookup, the difference was night and day. It quietly filters out junk signups without blocking legitimate customers. The support team even helped us fine-tune our risk thresholds on a quick Zoom call. Being honest, we couldn't ask for more.
Ido ShachamUnited States · January 2026A good addition to our workflow
1Lookup has been a good addition to our workflow over the last few months. We use it to verify IPs, emails, and phone numbers, which has noticeably cut down the time we spend chasing dead-end applications. It's reasonably priced and their support team is actually helpful. It's a very practical tool for what we need.
Meredith Jr. RedmondIsrael · March 2026
DeBounce vs 1Lookup FAQ
Common questions about DeBounce and switching to 1Lookup
What is DeBounce?
DeBounce is an email verification service that cleans mailing lists by detecting invalid, disposable, and risky addresses before you send. It offers bulk list validation, a real-time API, a JavaScript signup-form widget, and integrations with common email platforms. Its focus is email hygiene rather than phone or IP data.
How much does DeBounce cost?
DeBounce uses a pay-as-you-go, credit-based pricing model with no monthly subscription, and its purchased credits do not expire. As of publication, credits start at roughly $10 for 5,000 verifications, with the effective per-email price dropping as you buy larger volume packs. New users also receive free test credits to try the service. Pricing can change, so check DeBounce’s pricing page for current figures.
What is the best DeBounce alternative?
The best alternative depends on what you need to verify. If you only clean email lists, DeBounce is a solid, affordable choice; if you also need phone and IP validation, 1Lookup is a strong DeBounce alternative because it handles all three through one API and one universal credit balance. That consolidation lets teams verify emails, phone numbers, and IPs without stitching together separate vendors.
How is 1Lookup different from DeBounce?
DeBounce specializes in email verification only, while 1Lookup validates phone numbers, emails, and IP addresses from a single API and one universal credit system. 1Lookup refreshes its data daily from FCC and carrier sources and returns a fraud score on every lookup, and it also offers carrier/HLR lookup, reverse lookup, and IP fraud intelligence. Both are strong at what they do; 1Lookup’s edge is unifying phone, email, and IP checks in one platform.
Can I try 1Lookup for free?
Yes. 1Lookup offers a 7-day free trial so you can test phone, email, and IP validation before committing. You can sign up and start validating right away without needing to contact sales first.
Is DeBounce worth it in 2026?
DeBounce earns its keep for bulk email cleaning on a budget: 1M verifications cost $750 pay-as-you-go, credits never expire, and every tier includes the full feature set backed by a 97.5%+ deliverability-rate guarantee. Watch the fine print on usage, though: catch-all validation costs 10 credits and data enrichment 20 credits per successful detection, so non-standard checks burn credits 10 to 20 times faster than the headline rate. The lowest advertised rate also applies only at the 5M tier, and the smallest pack is 5,000 credits for $15 at $0.003 per check. DeBounce is email only, so if you also need phone or IP verification, a multi-channel per-lookup API like 1Lookup handles all three on one balance.
The Complete DeBounce Alternative
Why limit yourself to email-only validation? Move to 1Lookup for complete user validation on one plan.
1Lookup vs DeBounce: the same criteria, side by side
Both products measured on identical criteria, with DeBounce’s numbers taken from its own published pricing.
1lookup1lookup.ioMulti-channel validation- Phone
- IP
debounce.comEmail verification- DeBounce · Starts at
- $15 for 5,000 credits (pay-as-you-go; $0.003/verification, smallest purchasable pack)
- 1Lookup: $99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise)
- DeBounce · Cheapest published per 1,000
- $0.75 at their largest published tier
- 1Lookup: $2.00 per 1,000 at 1,000,000 lookups/mo
- DeBounce · Free trial
- Free signup includes 100 credits to test list cleaning and the API; no credit card required
- 1Lookup: 7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise (card required, nothing charged up front)
- DeBounce · Do credits expire?
- No, purchased credits never expire (site states "Credits never expire" / "no expiry date")
- 1Lookup: Unused monthly credits roll over for 3 months; separately purchased credits last 1 year
| Criteria |  1Lookup | |
|---|---|---|
| Contact-data coverage | EmailPhoneIP | EmailPhoneIP |
| Pricing model | Monthly plans with universal credits; core phone, email and IP lookups cost 1 credit, enrichment and intelligence products cost more | Pay-as-you-go credit packs (1 credit = 1 email verification), with an optional monthly-billing toggle that discounts the same volume by 8%. All features included on every tier; no contracts. |
| Starting price | $99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise) | $15 for 5,000 credits (pay-as-you-go; $0.003/verification, smallest purchasable pack) |
| Free option | Free single lookups via the online tools at 1lookup.io/tools, no account required | 100 free credits on signup (one-time, no credit card required); no recurring monthly free allowance |
| Free trial | 7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise (card required, nothing charged up front) | Free signup includes 100 credits to test list cleaning and the API; no credit card required |
| Do credits expire? | Unused monthly credits roll over for 3 months; separately purchased credits last 1 year | No, purchased credits never expire (site states "Credits never expire" / "no expiry date") |
Cost per 1,000: DeBounce and 1Lookup
Published rates only, drawn on one shared scale that starts at $0.
- 1Lookup rate card
- DeBounce published tiers
DeBounce, per published tier
10,000 verifications
$2.50100,000 verifications
$1.35500,000 verifications
$0.901,000,000 verifications
$0.75
1Lookup, reference band (a range, not a bar from $0)
All 4 plans, 20,000 lookups/mo to 1,000,000 lookups/mo
Cost per 1,000
| Product | Volume tier | Price | Cost per 1,000 |
|---|---|---|---|
| DeBounce | 10,000 verifications | $25 pay-as-you-go | $2.50 |
| DeBounce | 100,000 verifications | $135 pay-as-you-go | $1.35 |
| DeBounce | 500,000 verifications | $450 pay-as-you-go | $0.90 |
| DeBounce | 1,000,000 verifications | $750 pay-as-you-go ($690 with 8% monthly-billing discount) | $0.75 |
| 1Lookup | 20,000 lookups/mo | $99/mo (Starter) | $4.95 |
| 1Lookup | 85,000 lookups/mo | $299/mo (Growth) | $3.52 |
| 1Lookup | 250,000 lookups/mo | $799/mo (Professional) | $3.20 |
| 1Lookup | 1,000,000 lookups/mo | $1,999/mo (Enterprise) | $2.00 |
What DeBounce costs at volume
| Volume | DeBounce price | Per 1,000 |
|---|---|---|
| 10,000 verifications | $25 pay-as-you-go | $2.50 |
| 100,000 verifications | $135 pay-as-you-go | $1.35 |
| 500,000 verifications | $450 pay-as-you-go | $0.90 |
| 1,000,000 verifications | $750 pay-as-you-go ($690 with 8% monthly-billing discount) | $0.75 |
For scale: 1Lookup’s plans work out to $4.95 per 1,000 lookups on Starter down to $2.00 per 1,000 on Enterprise, with every lookup type (phone, email, IP, spam) drawing from the same credits. Pricing models differ (subscription vs pay-as-you-go), so compare at your real monthly volume.
The same month, priced both ways
Pick one of DeBounce’s own published volumes. Their figure is their published price at that tier; ours is the cheapest plan on our rate card that covers it. Nothing here is interpolated.
1Lookup
$99/mo
The Starter plan, 20,000 credits a month at $4.95 per 1,000. Using 10,000 of them is 50% of the plan, so $9.90 per 1,000 effective.
DeBounce
$25
Their published price for “10,000 verifications”, at $2.50 per 1,000.
At 10,000 a month, DeBounce is $74 cheaper. Our smallest plan that covers this volume includes 20,000 credits, so the gap closes as you use more of it.
DeBounce rates as published on debounce.io, verified July 2026. Pricing models differ (a monthly plan is not a credit pack), so a like-for-like month depends on your real mix of lookups. Check their pricing page
DeBounce’s pricing page, as we read it
Every DeBounce figure above is taken from this page. It is reproduced here so you can check the numbers against the source instead of trusting our transcription of them, and the caption links straight to it. Prices change; the capture date says how fresh this is.
Before you sign: DeBounce and 1Lookup on the operational terms
The terms that decide what a year actually costs, rather than what the first month does. A blank means we could not verify it on either product’s published pages, not that the answer is nothing.
| Term | 1Lookup | DeBounce |
|---|---|---|
| Minimum commitment | None. Monthly plans with no contract and no minimum volume; cancel any time | — |
| Going over your quota | — | Pricing page states 'Only pay for what you use. No overages; buy exactly what you need and your credits will never expire.' Credits are prepaid, so usage stops when the balance runs out. |
| API access | Included on every plan and during the free trial; there is no tier that unlocks it | Included on all plans. Pricing page states 'API Included - No need to buy separate credits to use API.' New accounts get 100 free credits. |
| Rate limit | 1,000 requests per minute on standard accounts, with higher limits available on request | Up to 5 concurrent API calls; the limit drops to 2 concurrent calls if data enrichment is enabled, with HTTP 429 'Maximum concurrent calls reached' on exceed. Public (client-side) keys are capped at 20 email validations per internet IP address per day. Only one active bulk validation job is allowed per account; further submissions queue. |
| Uptime SLA | — | The API page states 'Currently, DeBounce API's uptime guarantee is 99.8% - we never go below this.' It is presented as a guarantee on a marketing page, not in a contractual SLA document. Status page at status.debounce.com. |
| Compliance | — | GDPR only. Application servers hosted in the EU, Data Processing Agreement available on request, and a choice of EU or North America validation server regions. No SOC 2, ISO 27001, CCPA or HIPAA certification is published. |
| Support | Starter: Email Support; Growth: Priority Email & Chat Support; Professional: Chat + Live Meeting; Enterprise: Dedicated CSM | — |
DeBounce fine print worth reading twice
Published terms that change what DeBounce costs or what you can do with it. Each one links to the DeBounce page it was read on, because a claim about somebody else’s contract should be checkable in one click.
The minimum purchase is 5,000 validations; the pricing calculator returns 'The minimum number of validations is 5,000.' for anything smaller.
Read it on DeBounce’s siteCatch-all validation costs 10 credits per validation and data enrichment costs 20 credits per successful detection, against 1 credit for a standard email validation.
Read it on DeBounce’s siteList monitoring is charged at 2x the list size per month.
Read it on DeBounce’s siteUploaded files and their validation results are automatically deleted 7 days after upload or validation, whichever occurs later, with no configurable retention period.
Read it on DeBounce’s siteAPI concurrency is capped at 5 simultaneous calls, and drops to 2 simultaneous calls when the data enrichment option is enabled.
Read it on DeBounce’s siteOnly one active bulk validation job is allowed per account; additional submissions are queued and processed sequentially.
Read it on DeBounce’s siteVolumes above 5,000,000 validations are not priced on the page and require contacting support.
Read it on DeBounce’s site
DeBounce’s API reference
Their public developer documentation, so you can judge the integration before you start one.
1Lookup
DeBounce
Where DeBounce wins
- Very low cost at volume with no subscription required: down to ~$0.00044/verification at 5M credits ($2,200), and credits never expire
- Published 97.5%+ deliverability-rate guarantee backing verification results
- No feature gating: API, real-time JS widget, catch-all validation, and free deduplication are included on every tier
- Broad integration ecosystem (WordPress plugin, Zapier, many ESP/CRM integrations) plus 40+ payment methods including PayPal and Bitcoin
Where 1Lookup wins
- Phone, email, and IP validation in one API with one universal credit balance
- Phone data refreshed daily from FCC and carrier sources
- Carrier/HLR lookup, line type, spam score, and reverse lookup included alongside validation
- Self-serve plans with no contracts and 3-month credit rollover
DeBounce pricing and product facts verified against debounce.io as of July 2026. Prices change; always confirm on the vendor’s site. 1Lookup numbers come from the live rate card.
Who this is for
A quick, honest read on which tool fits your use case.
Choose 1Lookup if: you also need phone and IP validation, not email alone, unified in one API and one universal credit balance.
Consider DeBounce instead if: you only need to clean email lists and want a focused, low-cost email verifier.