Overview

LeadBoxer identifies companies visiting a website and records the pages they view, then adds firmographic context such as company size, industry and revenue. This helps teams qualify account interest, but company identification should not be mistaken for identifying the individual visitor.

Its focus extends beyond website visits: journey tracking combines activity across websites, email, newsletters, advertising and social channels. Leadboards, filters, segmentation and workflow automation provide a way to organize and prioritize the resulting leads. Founded in 2008 and headquartered in Amsterdam, the company says its service is EU hosted and GDPR by design, runs in ISO 27001 certified datacentres, and uses tenant isolation and scoped API keys by default. It says customer personal data is not pooled or resold, while email-tracking signals help improve IP-to-company matching.

Key features

Company signals and lead organization

Website identification and firmographic enrichment give teams a basis for prioritizing companies by observed interest and profile. Leadboards, segmentation and workflow automation help turn those signals into an organized pipeline. The strength is the connection between identification and follow-up; the main caveat is that the identification described is company-level.

Cross-channel and email tracking

LeadBoxer connects online behavior across websites, email, newsletters, advertising and social channels. Email tracking reports opens and clicks and can link click-through activity to website behavior. Email-open, click and form-submit tracking are free, which makes those signals accessible even on a small budget.

Integrations and APIs

Integrations include Mailchimp, WordPress, HubSpot, Marketo, Pipedrive, ActiveCampaign, Zapier, Gmail, Outlook and BigQuery. Track, Lookup and App APIs cover event ingestion, company enrichment, and reading or managing datasets, leads and settings. That breadth suits teams connecting LeadBoxer to existing systems, though the value of the API offering will depend on having technical capacity to use it.

Pricing

LeadBoxer has free options, paid monthly subscriptions and usage-based pricing. App plans include a 14-day free trial with no credit card required. The free plans are useful for evaluation or a very small setup, but their one-user, one-dataset and one-month retention limits make them a narrow long-term fit.

Plan	Price	Included limits	Best fit
Free (App)	0.00 EUR per month; billed €0 forever	25,000 credits/month, 1 user, 1 dataset, 1 month data retention	Solo users testing the app or handling a small, short-lived dataset.
Free (Platform)	0.00 EUR per free	25,000 credits/month, 1 user, 1 dataset, 1 month data retention	Platform users who can work within the same compact limits.
Starter	99.00 EUR per year; billed €99 per month, billed annually; €149 billed monthly	100,000 credits/month, 3 users, 1 dataset, 12 months data retention	Small teams needing more credits, seats and retention without multiple datasets.
Growth	199.00 EUR per year; billed €199 per month, billed annually; €249 billed monthly	250,000 credits/month, 5 users, 3 datasets, 16 months data retention	Teams that need more room for shared work and separate datasets.
Scale	399.00 EUR per year; billed €399 per month, billed annually; €449 billed monthly	1,000,000 credits/month, 10 users, 10 datasets, 24 months data retention	Larger teams with higher credit needs and longer retention requirements.
Pay per use	Custom pricing	25,000 credits free every month; €0.0025/credit for 25k–100k; €0.0020 for 100k–250k; €0.0015 for 250k–1M; €0.0010 for 1M–3M; €0.0007 for 3M–10M; 10M+ talk to sales	Teams whose usage varies and that prefer credit-based billing.

Starter keeps the dataset cap at one, so its extra seats and retention do not solve a need to separate multiple datasets. Growth and Scale add datasets alongside higher credit allowances, seats and retention. The usage-based option offers a free monthly allowance and declining per-credit rates across higher tiers; workloads above 10 million credits require a sales conversation.

Platforms

LeadBoxer is available on web and via API. It supports Gmail and Outlook email clients, CRM synchronization, open and click tracking, and real-time alerts.

Who it's for

LeadBoxer is a good fit for SaaS builders, product teams, RevOps and agencies that need company-level visitor signals, firmographic enrichment and lead organization across channels. Its free monthly credits and free email and form tracking lower the barrier to starting, while paid tiers give teams more users, datasets, credits and retention. It is less suitable for a team that needs individual visitor identification or expects a free plan to support multiple users and datasets over a long retention period.

Pros and cons

Pro: Company identification, firmographic enrichment and cross-channel journey tracking connect account interest with useful context.
Pro: Free monthly credits plus free email-open, click and form-submit tracking make initial use possible without a paid subscription.
Pro: CRM, marketing, email and data integrations, alongside three APIs, provide several routes for fitting signals into existing workflows.
Con: Both free plans cap usage at one user and one dataset, with only one month of retention, limiting collaboration and historical analysis.
Con: Starter still allows only one dataset; teams that need separation must move to Growth or Scale.
Con: Company-level visitor identification does not establish which individual visited.

Alternatives

Consider Lucida if lead ranking and custom machine-learning models are the priority: its free plan includes one full lead ranking, training one custom ML model and exporting the top 100 ranked leads. QuickOn is worth comparing for a smaller lead-source setup, with a free plan capped at 100 leads per month, one lead source, one project and community support, or a Starter plan at 49.00 USD per month for 1,000 leads.

UserMotion may suit teams focused on account and intent scoring: its free plan includes up to 1,000 accounts, ICP scoring, intent scoring and real-time signals. Draup is another paid API and web option to consider.

Factors.ai is a relevant comparison for teams focused on tracked users and identified companies; its Basic plan is 6.00 USD per year and includes up to 10,000 monthly tracked users, up to 3,000 companies identified per month and 5 seats. Propensity may fit buyers seeking account- and contact-level website de-anonymization, intent data and unlimited campaigns and users; its Essential plan is 2000.00 USD per month.

Demandbase is a paid API option, while Pecan AI is a paid web option. Readers exploring adjacent categories can also browse Lead Scoring Software, Buyer Intent Data Software, Website Visitor Tracking Software and Sales Email Tracking Software.

Verdict

Choose LeadBoxer if your team needs to connect company-level website visits with firmographic context, cross-channel activity and organized lead workflows. Its strongest case is the breadth of signals and integrations paired with a usable free starting point; look elsewhere if person-level visitor identification is essential or the free tier's tight collaboration and retention caps are deal-breakers.

	LeadBoxer	Mailcastr
Free plan	Yes	No
Free trial	Yes	No
Paid from	€8.25/mo	—
Open source	No	No
Platforms	api, Web	Web, iOS, Android
Free plan	Yes	Yes
Email client support	gmail_and_outlook	gmail
Open tracking	Yes	Yes
Click tracking	Yes	Yes
Real-time alerts	Yes	Yes
CRM synchronization	Yes	—

LeadBoxer vs Mailcastr

LeadBoxer

Mailcastr