BlitzAPI vs Invoice Guru

Side-by-side comparison to help you choose the right tool.

BlitzAPI provides instant access to clean B2B data through powerful APIs, supercharging your growth team's strategies.

Last updated: February 28, 2026

Create HMRC-compliant invoices in seconds with our simple, mobile-first software.

Last updated: February 28, 2026

Visual Comparison

BlitzAPI

BlitzAPI screenshot

Invoice Guru

Invoice Guru screenshot

Feature Comparison

BlitzAPI

Smart ICP Targeting

BlitzAPI's Smart ICP Targeting feature enables teams to instantly identify their ideal decision-makers. The system prioritizes and ranks contacts using a sophisticated algorithm, ensuring that users can efficiently focus their outreach efforts on the most relevant leads.

Verified Email & Phone Enrichment

With BlitzAPI, users can gain access to verified and accurate emails and direct phone numbers. This feature enhances the quality of communication efforts, significantly improving outreach success rates and ensuring that teams can connect with prospects effectively.

Catch-All Email Validation

BlitzAPI offers real-time catch-all email validation with over 98% accuracy. This feature ensures that users can validate catch-all emails efficiently, eliminating the guesswork associated with email communications and enhancing their ability to reach the right contacts.

People Enrichment

The People Enrichment feature allows users to enrich company and individual profiles through powerful and reliable APIs. This capability helps organizations gather comprehensive information on potential leads, making it easier to tailor their approach and engagement strategies.

Invoice Guru

Instant Invoice Creation

Create and send a fully professional, branded invoice in less than 60 seconds, right from your phone. Simply enter your client's details and the job items. The app automatically adds your logo, company info, VAT, payment terms, and due dates, so every invoice looks polished and complete without any extra effort from you.

AI-Powered OCR Receipt Scanner

Say goodbye to manual data entry and lost receipts. Just snap a photo of any paper receipt with your phone's camera. Invoice Guru's smart AI technology instantly reads all the details—like date, vendor, and amount—and saves it as a perfectly categorized expense entry in your account, saving you hours of tedious work every week.

Smart Bank Integration & Payment Tracking

Connect your business bank account securely to automate your bookkeeping. Invoice Guru automatically imports and matches incoming bank transactions with your unpaid invoices. You get a clear, real-time view of exactly who has paid and which payments are overdue, eliminating guesswork and manual reconciliation.

Multi-Language & Tax Compliance Ready

Work with clients across borders effortlessly. The app supports over 12 languages, multiple currencies, and local date formats. More importantly, it's built to keep you compliant, with built-in readiness for key regulations like HMRC's Making Tax Digital (MTD) in the UK, ensuring your submissions are correct and hassle-free.

Use Cases

BlitzAPI

Streamlined Prospecting

BlitzAPI can be utilized by sales teams to streamline their prospecting efforts. By accessing clean and verified B2B data, teams can quickly identify and connect with potential clients, minimizing the time spent on unqualified leads.

Enhanced Lead Enrichment

Marketing teams can leverage BlitzAPI for lead enrichment, allowing them to build more robust profiles of their prospects. This enriched data enables personalized outreach strategies that resonate better with potential customers.

Effective Email Campaigns

Organizations can use BlitzAPI to ensure that their email campaigns are built on verified data. With accurate email validation and enrichment, teams can improve their outreach success rates and boost overall engagement.

Integration into Existing Workflows

BlitzAPI is designed to integrate seamlessly into existing workflows, making it a perfect fit for teams looking to enhance their GTM strategies. This flexibility allows organizations to implement automated, scalable solutions without overhauling their current systems.

Invoice Guru

For On-Site Tradespeople

A plumber finishing a job can create a professional invoice on their phone before they even pack up their tools. They can add their logo, apply VAT, and email it to the customer instantly. This immediate, professional service often leads to quicker payment and a better client experience right on the spot.

For Freelancers Managing Expenses

A freelance graphic designer can use the AI receipt scanner to instantly capture and log every business expense, from software subscriptions to coffee meetings. This automates their expense tracking, making tax time simple and ensuring they never miss a deductible cost.

For Small Service Businesses Needing Reports

A small cleaning company owner can use the automated reporting features. At the end of the month, they can generate a clear report of all invoices, expenses, and payments with one tap, which they can then send directly to their accountant, saving both parties valuable time.

For Businesses Requiring MTD Compliance

A UK-based handyman can confidently manage their VAT through Invoice Guru. The app helps them record all transactions correctly and can facilitate direct MTD-compliant submissions to HMRC, removing the stress and complexity of meeting government digital tax requirements.

Overview

About BlitzAPI

BlitzAPI is a robust API toolbox specifically designed for go-to-market (GTM) teams, providing them with high-quality and accurate B2B data to streamline prospecting efforts. This powerful tool allows users to search for and enrich contacts and companies, validate work emails, and retrieve verified phone numbers, which are essential for optimizing outbound and revenue operations. BlitzAPI operates on two fundamental principles: prioritizing data quality over noise and implementing deliverability-first practices for email communications. This focus makes it an invaluable resource for GTM agencies, outbound sales teams, and organizations aiming to implement repeatable playbooks while ensuring data integrity and scalability. With seamless integration into existing workflows, BlitzAPI empowers teams to enhance their operations, achieve better results, and focus on what matters most—growing their business.

About Invoice Guru

Invoice Guru is a revolutionary mobile-first invoicing app built specifically for the unique needs of tradespeople, freelancers, and small service businesses. If you're a plumber, electrician, painter, builder, or cleaner, you know that traditional accounting software is clunky, desktop-based, and not designed for your on-the-go lifestyle. Invoice Guru changes all that by putting a powerful, professional invoicing tool right in your pocket. The core mission is simple: to dramatically cut down your admin time so you can focus on the hands-on work you love and, most importantly, get paid faster. Created by someone who has been in your shoes, the app focuses on speed, simplicity, and smart automation. It goes beyond just creating invoices to handle the tedious parts of your business, like scanning receipts with AI, matching bank payments automatically, and sending smart payment reminders. Crucially, it's built with future-proof compliance in mind, ready for regulations like the UK's Making Tax Digital (MTD) and Poland's KSeF, so you won't need to switch tools when rules change. Think of Invoice Guru not just as an invoicing app, but as your complete financial assistant for the modern tradesperson.

Frequently Asked Questions

BlitzAPI FAQ

What types of data can I access with BlitzAPI?

BlitzAPI provides access to a wide range of B2B data, including verified contact information such as emails and phone numbers, as well as enriched company profiles and LinkedIn matches.

How does BlitzAPI ensure data accuracy?

BlitzAPI prioritizes quality by employing rigorous validation processes, including real-time catch-all email validation and continuous updates to its database, ensuring that users receive accurate and reliable data.

Can I integrate BlitzAPI with my current CRM?

Yes, BlitzAPI is designed for seamless integration with existing workflows and CRMs, allowing users to enhance their GTM strategies without disrupting their current processes.

Is there a free trial available for BlitzAPI?

Absolutely! BlitzAPI offers a free trial that includes 1,000 credits, allowing users to explore the platform and its features without the need for a credit card or upfront commitment.

Invoice Guru FAQ

Is Invoice Guru really free to start?

Yes! Invoice Guru offers a Free Forever Starter Plan that allows you to create up to 10 invoices, download them as PDFs, and use basic features. This is perfect for trying out the app or for very small businesses to manage their core invoicing needs at no cost.

How does the AI receipt scanner work?

It's very simple. You just open the app and take a photo of any paper receipt. Our advanced Optical Character Recognition (OCR) technology then automatically reads the text on the receipt, extracts key details like the date, vendor name, and total amount, and creates a digital expense entry in your account. You just confirm the details, and you're done!

Is my financial data safe with Invoice Guru?

Absolutely. Security is a top priority. We use bank-level encryption to protect all your data. Our bank integrations are provided by secure, regulated third-party providers (like Plaid in the UK) that never share your login credentials with us. Your information is always safe and private.

Can I use Invoice Guru for Making Tax Digital (MTD) in the UK?

Yes, you can. The Pro Plan includes features that support MTD for VAT compliance. It helps you keep digital records and can facilitate the submission of your VAT returns directly to HMRC through our MTD-compatible platform, making the entire process much smoother.

Alternatives

BlitzAPI Alternatives

BlitzAPI is a dynamic toolbox that specializes in delivering precise B2B data through powerful APIs, making it an essential tool for go-to-market (GTM) teams. By offering features such as contact enrichment, email validation, and verified phone number retrieval, it supports businesses in refining their prospecting strategies and enhancing their revenue operations. However, users may seek alternatives to BlitzAPI for various reasons, including pricing considerations, specific feature requirements, or the need for integration with particular platforms. When exploring alternatives, it's important to assess the quality of the data provided, the scalability of the solution, and the overall ease of integration into existing workflows to ensure a seamless transition.

Invoice Guru Alternatives

Invoice Guru is a mobile-first invoicing app built specifically for UK tradespeople and small service businesses. It helps you create compliant invoices in seconds, right from your phone, so you can spend less time on admin and more time on your trade. People often look for different tools for various reasons. You might need software that works on a computer, require specific accounting integrations, or have a different budget in mind. It's completely normal to shop around to find the perfect fit for your business's unique needs. When comparing options, focus on what matters most to you. Consider ease of use, especially if you're on the go, compliance with UK tax rules like Making Tax Digital, and features that save you time, like automatic receipt scanning or payment tracking.

Continue exploring