BlitzAPI vs Invoice Guru

Smart ICP Targeting & People Search

Find your ideal customer profile in seconds. BlitzAPI's powerful search algorithm instantly surfaces and ranks decision-makers based on your specific criteria like role, seniority, industry, and company size. This eliminates guesswork and delivers a prioritized list of high-intent prospects directly to your workflow, accelerating the top of your funnel.

Verified Email & Phone Enrichment

Get accurate, direct contact information every time. BlitzAPI's enrichment APIs append verified work emails and direct-dial phone numbers to your lead records in real-time. This ensures your outreach hits the right inbox and phone line, dramatically increasing connection rates and the efficiency of your sales and marketing campaigns.

Catch-All Email Validation with >98% Accuracy

Stop wasting credits on undeliverable leads. BlitzAPI's advanced validation engine specializes in identifying catch-all domain emails with industry-leading accuracy. This real-time verification protects your sender reputation, improves deliverability, and guarantees you're only paying for contacts that can actually be reached.

Unlimited Data Enrichment via API

Enrich at scale with simple, flexible API calls. Seamlessly integrate BlitzAPI into your existing CRM, marketing automation, or custom tools. Enrich leads with comprehensive data—from LinkedIn profiles and company details to technographics—all through a clean, developer-friendly API built for unlimited, reliable scaling.

Lightning-Fast 60-Second Invoicing

Create and send a complete, professional invoice from your phone in less than a minute. Simply enter client details and items; the app automatically adds your logo, VAT, payment terms, and due dates. This mobile-first design is built for on-the-spot invoicing the moment a job is done, eliminating delays and getting you paid quicker.

AI-Powered OCR Receipt Scanner

Eliminate manual data entry forever. Simply snap a photo of any paper receipt, and Invoice Guru's intelligent AI instantly reads all the details—vendor, date, amount, tax—and saves it as a perfectly categorized expense entry. This feature saves hours of admin time each week and keeps your expense tracking flawless and up-to-date.

Smart Bank Integration & Payment Tracking

Connect your business bank account securely for real-time financial clarity. Invoice Guru automatically matches incoming bank transactions with your unpaid invoices, showing you instantly which clients have paid and which are overdue. This seamless reconciliation turns payment tracking from a weekly chore into an automated, effortless process.

Future-Proof Tax Compliance (MTD, KSeF)

Invoice Guru is engineered for compliance from the ground up. It is fully ready for evolving regulations like the UK's Making Tax Digital (MTD) for VAT submissions and Poland's KSeF e-invoicing system. This built-in readiness ensures your business stays compliant without needing to learn new software or risk penalties, giving you long-term peace of mind.

Automating Outbound Sales Prospecting

Supercharge your SDR team by automating lead list building. Integrate BlitzAPI to automatically enrich inbound leads or build targeted prospect lists from scratch with verified emails and phones. This creates a seamless, high-velocity outbound engine that fills calendars faster and reduces manual data entry by over 80%.

Building Scalable Account-Based Marketing (ABM) Campaigns

Execute precise ABM plays at scale. Use the Company and People Search APIs to identify all key stakeholders within your target accounts. Enrich their profiles with accurate data to personalize campaigns effectively, ensuring your marketing messages resonate with the entire buying committee for maximum impact.

Cleansing and Augmenting CRM Data

Instantly upgrade your existing database. Run your stale CRM contacts through BlitzAPI's enrichment endpoints to verify email addresses, update job titles, append phone numbers, and refresh company information. This revitalizes old leads, improves segmentation, and ensures your team is working with actionable, current data.

Powering Recruitment and Talent Sourcing Pipelines

Accelerate talent acquisition by sourcing qualified candidates efficiently. Recruiters can use the people search API to find professionals by skill, title, and company, then enrich profiles with contact details and LinkedIn URLs. This streamlines outreach and builds robust pipelines for hard-to-fill roles.

On-Site Job Completion for Tradespeople

A plumber finishes a repair at a client's home. Before packing up their tools, they open Invoice Guru on their phone, select the client from their list, add the service items, and hit send. The professional invoice lands in the client's email within 60 seconds, facilitating immediate payment discussion and dramatically speeding up cash flow directly from the job site.

Efficient Expense Management for Small Businesses

A freelance graphic designer collects receipts from software subscriptions, client lunches, and office supplies throughout the month. Instead of a dreaded receipt pile, they use Invoice Guru's OCR scanner to instantly digitize and categorize each one. Come tax season, all expenses are perfectly organized and ready for their accountant, saving countless hours of manual logging.

Automated Payment Follow-Ups for Solopreneurs

A solo cleaner sends invoices but often has to chase payments manually. With Invoice Guru's Pro plan, the system automatically sends polite payment reminders for overdue invoices. This ensures consistent cash flow without the awkwardness of personal follow-up calls, allowing the business owner to focus entirely on serving their next client.

International Service Provision for Contractors

A UK-based IT consultant takes on a client in Germany. Using Invoice Guru, they easily generate an invoice in Euros, with all amounts and dates formatted correctly for the local market. The multi-currency and multi-language support allows them to present a perfectly professional, localized invoice, streamlining international business without complication.

BlitzAPI is the high-speed API engine built to power every modern GTM playbook. It delivers instant, programmatic access to a massive database of clean, verified B2B data, enabling growth, sales, and revenue operations teams to automate and scale their prospecting workflows at lightning speed. Forget manual research and unreliable data—BlitzAPI provides powerful, single-endpoint APIs for people search, email and phone enrichment, LinkedIn matching, and company profiling. It's designed for GTM agencies, outbound sales teams, and RevOps professionals who demand accuracy and scalability. The core value proposition is twofold: prioritize quality over noise with deliverability-first data, and integrate seamlessly so you pay only for verified results. With over 360 million contacts and 60 million company profiles, BlitzAPI transforms raw leads into targeted, actionable intelligence, empowering teams to execute repeatable playbooks with precision and efficiency, ultimately driving more pipeline with less effort.

Invoice Guru is the definitive, mobile-first invoicing solution engineered for speed and built for the real world of tradespeople and small service businesses. Born from the firsthand experience of a tradesperson, it shatters the old model of clunky, desktop-bound admin. This tool is laser-focused on getting you paid faster by letting you create, send, and track professional, fully compliant invoices directly from your smartphone in under 60 seconds. It's the essential financial companion for plumbers, electricians, builders, cleaners, and freelancers across the UK and Europe who need to manage their business from any job site without slowing down. Beyond lightning-fast invoicing, Invoice Guru automates your entire financial workflow. It integrates with your bank to track payments automatically, uses AI-powered OCR to scan and digitize receipts in a snap, and sends smart reminders for overdue invoices. Critically, it's built future-proof, with compliance for regulations like UK Making Tax Digital (MTD) and Poland's KSeF ready to go, ensuring you never need to switch tools as your business or the rules evolve. Stop wasting evenings on paperwork. With Invoice Guru, you reclaim your time and accelerate your cash flow.

What makes BlitzAPI different from other data providers?

BlitzAPI is built on an API-first architecture designed for integration and scale, not just data delivery. We prioritize verified, deliverability-first data (especially on catch-all domains) and operate on a pay-for-results model. This means you integrate our engine into your workflow and only pay for accurate, usable data, not noisy leads.

How do you ensure such high email accuracy and deliverability?

Our >98% deliverability rate is achieved through a multi-layered validation process. We combine real-time SMTP checks, domain pattern analysis, and proprietary algorithms specifically tuned to identify and validate catch-all email servers. This rigorous system ensures the contacts you get are current and reachable.

Is BlitzAPI easy to integrate with our existing tech stack?

Absolutely. BlitzAPI is built for developers and no-code platforms alike. We offer clean, well-documented REST APIs that can be plugged into any CRM (like Salesforce, HubSpot), marketing automation tool, or custom internal system in minutes. The focus is on adapting to your workflow, not forcing you to change it.

What is your pricing model?

BlitzAPI uses a transparent credit-based system. You purchase credits and consume them only for successful API queries that return verified data (e.g., a found email, a validated phone number). This "pay for performance" approach ensures you never waste budget on bad leads. Start with 1,000 free credits to test the speed and accuracy yourself.

Is Invoice Guru compliant with UK Making Tax Digital (MTD)?

Yes, absolutely. Invoice Guru is built with future-proof compliance at its core. The software is fully ready for HMRC's Making Tax Digital (MTD) requirements for VAT. Subscribers on the Pro plan can submit their VAT returns directly to HMRC through the app, ensuring complete compliance and eliminating the need for separate MTD software.

Can I use Invoice Guru for free?

Yes. Invoice Guru offers a Free Forever Starter Plan. This plan allows you to create and download up to 10 invoices as PDFs, giving you a full-featured way to test the platform's speed and core invoicing capabilities at no cost. For unlimited invoices and advanced features like bank integration and AI tools, you can upgrade to the affordable Basic or Pro plans.

How does the AI receipt scanner work?

The OCR (Optical Character Recognition) receipt scanner uses advanced AI to read text from photos. You simply take a picture of your paper receipt within the Invoice Guru app. The AI instantly extracts key details like the vendor name, date, total amount, and tax, then creates a digital expense entry automatically. It's designed for total accuracy and massive time savings.

Does Invoice Guru support businesses outside the UK?

Yes. While engineered with UK tradespeople in mind, Invoice Guru is built for a European market. It supports multi-currency invoicing, over 12 languages, and local date formats. It also includes specific compliance features for other regions, such as Poland's KSeF e-invoicing system, making it a versatile tool for service businesses operating internationally.

BlitzAPI is a powerful B2B data API platform designed for go-to-market teams. It delivers clean, verified contact and company data to fuel prospecting, email validation, and outbound workflows with a focus on quality and deliverability. Users often explore alternatives for various reasons. These can include budget constraints, the need for different feature sets, specific integration requirements, or simply evaluating the competitive landscape to ensure they have the best tool for their unique operational scale and strategy. When choosing an alternative, prioritize accuracy and data freshness. Look for platforms that emphasize verified, deliverable data over sheer volume. Ensure the solution integrates smoothly with your existing tech stack and scales with your team's growth, all while maintaining transparent and flexible pricing.

Invoice Guru is a mobile-first invoicing app built for speed, designed specifically for UK tradespeople and service businesses. It creates HMRC-compliant invoices in under 60 seconds, directly from your phone, and automates the entire workflow from receipt scanning to payment tracking. Users often explore alternatives for various reasons. This could be due to budget constraints, a need for different feature sets like advanced project management, or a preference for a desktop-centric platform. Some businesses may also require specific integrations that their current setup demands. When evaluating other options, focus on core needs. Prioritize genuine mobile efficiency, compliance readiness for regulations like MTD, and automation that truly saves time. The right tool should match your on-the-go workflow, not add more admin.