7 Best Billdu Alternatives in 2026

Billdu is a well-established invoicing platform with over 1.5 million users and a 4.8-star average across 70,000+ app store reviews. Originally launched in 2012 as “miniRechnung” in Germany, it has grown into a 4-app ecosystem covering invoicing, appointments, e-commerce, and website building. It supports 12 languages, runs on iOS, Android, iPad, Apple Watch, and web, and processes more than 300,000 documents per month. For European-based businesses that want an all-in-one toolkit, Billdu is a solid option.

But it’s not the right fit for everyone.

Based on app store reviews and user feedback, the most common reasons people look for Billdu alternatives include:

• No free plan. Billdu offers only a 7-day trial. The cheapest tier is $4.99/month (annual) or $7.99/month (monthly). Competitors like Wave and Pronto Invoice offer free tiers.
• Expensive for unlimited clients. The Lite plan caps you at 10 clients. Standard allows 50. You need Premium at $27.99/month to remove the client limit.
• No AI features. All invoice creation is manual form-based entry. No smart suggestions, no natural language input.
• No QuickBooks integration. For businesses relying on QuickBooks for accounting, this is a dealbreaker.
• Recurring invoices locked to Premium ($27.99/mo). Most competitors offer recurring invoices at much lower price points.
• Complex ecosystem pricing. The 4-app model can feel confusing and expensive if you only need invoicing.
• Limited offline support. Mobile apps have some offline capability, but it’s not a full offline-first architecture.
• Price increases over time. Multiple reviews mention subscription costs going up after initial sign-up.

We evaluated 7 alternatives based on pricing, free plan availability, invoice limits, mobile experience, AI features, offline support, and integrations. Full disclosure: Pronto Invoice (our product) is on this list. We’ve done our best to give every tool a fair assessment.

Quick Comparison

1. Pronto Invoice — Best for AI-Powered Mobile Invoicing

Pronto Invoice is built around two ideas: invoicing should take under 60 seconds, and your phone should be the only tool you need. It’s a native mobile-first invoicing app with an AI assistant that creates invoices from natural language descriptions — something no other tool on this list offers.

Standout Features

• Smart AI invoice creation. Type “Invoice John Smith $500 for AC repair” and the AI builds the complete invoice — client matching, item suggestions, tax calculations. Under 15 seconds for repeat clients.
• 5-step guided workflow. Client > Items > Payment > Document Info > Review & Send. Enforced simplicity that prevents the feature bloat Billdu’s 4-app ecosystem can create.
• Full offline mode. Create invoices, add clients, and preview PDFs without internet. Everything syncs when connected. Unlike Billdu’s limited offline capability, this is a true offline-first architecture.
• One-handed mobile operation. Every critical action reachable with your thumb. Built for job sites, not desks.
• 16 industry templates. Tailored for plumbing, electrical, HVAC, photography, consulting, landscaping, and more.
• Zero payment processing markup. Connect your own Stripe or PayPal. Keep your negotiated rate — no extra fees on top.
• QuickBooks sync. Real-time two-way sync on Growth and above. A feature Billdu doesn’t offer at any price.

Pricing

Pros

• Free plan with 10 invoices/month (no credit card required) — Billdu has no free plan
• AI invoice creation is genuinely unique in the market
• Fully native iOS and Android apps with complete offline support
• No payment processing markup at any tier
• Recurring invoices and QuickBooks sync on Growth ($12/mo) — features that cost $27.99/mo on Billdu (and QuickBooks isn’t even available)
• Unlimited clients on every plan, including Free

Cons

• Newer product with a smaller user base than Billdu’s 1.5 million
• No in-app client signatures yet (on the roadmap)
• Smart AI requires internet connection (traditional forms work offline)

Best For

Contractors, field service pros, and freelancers who invoice from their phone and want AI to eliminate form-based data entry. If Billdu’s lack of QuickBooks integration or AI features is driving your search, Pronto Invoice is the direct answer.

Try Pronto Invoice free —>

2. Invoice Simple — Best for Straightforward Mobile Invoicing

Invoice Simple is one of the most popular mobile invoicing apps with over 500,000 users and a 4.8-star rating across 284,000 reviews. The interface is clean, invoice creation is fast, and it offers client signatures — a feature many competitors lack.

Standout Features

• Clean, minimal invoice creation workflow
• Client signature capture built in
• Photo attachments for invoices
• Expense tracking on higher tiers
• Professional invoice templates

Pricing

No free plan. 14-day free trial available.

Pros

• Massive user base with strong app store ratings (284K reviews)
• Client signature capture built into the app
• Very clean, intuitive interface
• Photo attachments for documenting completed work

Cons

• No free plan (14-day trial only) — same limitation as Billdu
• Strict invoice limits on lower tiers (3/month on Essentials)
• No recurring invoices at any tier
• No QuickBooks integration
• No AI features
• Payment processing fees (2.9% + $0.30)

Best For

Businesses that value simplicity and client signatures above all else, and don’t need recurring invoices, AI, or accounting integrations.

3. Invoice2Go — Best for Mobile Invoicing with Banking

Invoice2Go (now part of Bill.com) combines invoicing with integrated banking services. It’s a strong mobile invoicing tool that has processed over $24 billion in payments and offers something unique on this list: a built-in business bank account.

Standout Features

• Integrated business banking (checking account, debit card)
• Instant bank deposits for processed payments
• Professional invoice templates with customization
• Appointment scheduling (basic)
• Client reviews and ratings collection

Pricing

Banking services may have additional fees.

Pros

• Integrated banking eliminates the need for a separate business bank account
• Strong mobile app with good field service support
• Owned by Bill.com — financial stability and continued development
• Appointment scheduling built in (Billdu also offers this, but only in their separate Appointments app)

Cons

• No free plan (trial only)
• No AI invoice creation
• Banking features may not be available in all regions
• Payment processing fees apply (2.9%)
• Limited offline functionality

Best For

Small business owners who want invoicing and banking in one app, and value the convenience of instant deposits over AI features or full offline support.

4. Invoice Ninja — Best Open-Source Option

Invoice Ninja is an open-source invoicing platform with a generous free tier and the option to self-host. If data control is a top priority — or if Billdu’s closed ecosystem feels limiting — Invoice Ninja gives you the source code to run on your own servers.

Standout Features

• Open-source codebase (self-hosting available)
• Free tier with up to 5 clients
• Project management and time tracking
• 40+ payment gateway integrations
• Multi-language support (12+ languages)
• EU e-invoicing compliance (Peppol, XRechnung)

Pricing

Self-hosting is free for all features.

Pros

• Self-hosting option for full data control
• Generous feature set on the free tier
• Extensive payment gateway integrations (40+ vs. Billdu’s Stripe-only approach)
• Active open-source community
• Time tracking and project management built in
• Strong EU e-invoicing compliance

Cons

• Free tier limited to 5 clients
• No AI invoice creation
• No offline mode on cloud version
• Mobile apps are less polished than dedicated mobile-first tools
• Self-hosting requires technical knowledge to set up and maintain
• Web-first design — mobile is secondary

Best For

Developers, tech-savvy freelancers, and businesses that want open-source control or need to self-host their invoicing data. Particularly strong for EU businesses needing e-invoicing compliance.

5. FreshBooks — Best for Full Accounting

FreshBooks started as an invoicing tool and evolved into a full small business accounting platform. If you’ve outgrown simple invoicing and need expense tracking, time tracking, and double-entry bookkeeping in one tool, FreshBooks is a strong option — though you’ll pay for it.

Standout Features

• Full double-entry accounting
• Time tracking with billable hours
• Project profitability tracking
• Expense tracking with receipt capture
• Automated bank reconciliation
• 100+ integrations

Pricing

Promotional pricing shown. Regular prices are higher.

Pros

• Comprehensive accounting beyond invoicing
• Excellent time tracking and project management
• Large ecosystem of integrations (100+ vs. Billdu’s limited integrations)
• Strong brand reputation and long track record
• Good customer support

Cons

• Significantly more expensive than invoicing-only tools
• Feature bloat if you only need invoicing — the opposite problem of Billdu’s ecosystem split
• Client limits on lower tiers (5 on Lite)
• No AI invoice creation
• Promotional pricing obscures true long-term costs
• No offline mode

Best For

Small businesses that have outgrown basic invoicing and need a full accounting solution with time tracking and expense management. If Billdu felt too limited on the accounting side, FreshBooks fills that gap.

6. Wave — Best Free Option

Wave offers completely free invoicing with no invoice limits and no client caps. It’s backed by an advertising and financial services revenue model, so the core product stays free. If Billdu’s lack of a free plan is your primary frustration, Wave is the most direct answer.

Standout Features

• Unlimited free invoicing (truly unlimited, no caps)
• Built-in accounting (double-entry bookkeeping)
• Receipt scanning
• Financial reports (profit & loss, balance sheet)
• Recurring invoices included free
• Payroll services (paid add-on)

Pricing

Pros

• Truly free invoicing and accounting — no invoice limits, no client limits
• Full double-entry accounting built in
• Recurring invoices included at no cost (costs $27.99/mo on Billdu)
• Good for businesses that need bookkeeping alongside invoicing
• Receipt scanning included

Cons

• No native mobile app for invoicing (web-based mobile experience)
• No offline mode
• No AI features
• Payment processing fees are higher than average (2.9% + $0.60)
• Interface can feel dated compared to Billdu’s modern design
• No dedicated field service features

Best For

Cost-conscious businesses that need free invoicing with built-in accounting and don’t require a strong mobile experience. The best choice if your main reason for leaving Billdu is the lack of a free plan.

7. Zoho Invoice — Best for Zoho Ecosystem Users

Zoho Invoice is the invoicing module within the larger Zoho suite. It’s free for up to 5 clients and integrates deeply with Zoho CRM, Zoho Books, and other Zoho products. If you’re already in the Zoho ecosystem, this is a natural fit. If you’re not, the value proposition weakens.

Standout Features

• Free for up to 5 clients (no invoice limits within that)
• Deep Zoho ecosystem integration (CRM, Books, Projects, Inventory)
• Automated payment reminders
• Multi-currency invoicing
• Client portal for customers to view and pay invoices
• Time tracking

Pricing

Pros

• Free tier with no invoice limits (5 client cap)
• Excellent if you already use Zoho products
• Client portal included — customers can view invoices and pay online
• Strong automation features (payment reminders, recurring invoices)
• Competitive pricing for what you get

Cons

• Limited value outside the Zoho ecosystem
• No AI invoice creation
• No offline mode
• Mobile apps are functional but not mobile-first
• Can feel corporate/complex for solopreneurs and field service pros
• Free tier’s 5-client limit is restrictive for growing businesses

Best For

Businesses already using Zoho products (CRM, Books, Projects) that want integrated invoicing within their existing ecosystem. If you’re not a Zoho user, the other options on this list offer more standalone value.

How We Chose These Alternatives

We evaluated each tool based on criteria that address the most common reasons people leave Billdu:

• Free plan availability — Does the tool offer a genuinely usable free tier? Billdu’s 7-day trial isn’t enough for a real evaluation.
• Client limits — How many clients can you manage at each price point? Billdu’s 10-client cap on Lite is the most restrictive on this list.
• Pricing transparency — Can you understand what you’ll pay without navigating a 4-app ecosystem?
• AI and automation — Does the tool reduce manual form-based entry?
• QuickBooks integration — Can you sync invoicing data with QuickBooks? This is a gap in Billdu.
• Mobile experience — Is the mobile app native and capable, or a web wrapper?
• Offline support — Can you create invoices without internet connectivity?
• Recurring invoices — At what price point are recurring invoices available? Billdu locks this to Premium ($27.99/mo).
• User reviews — What do real users say on the App Store, Google Play, G2, and Capterra?

All pricing and feature information was verified on each product’s official website. Last verified February 2026.

Frequently Asked Questions

What is the cheapest Billdu alternative?

Pronto Invoice, Wave, Invoice Ninja, and Zoho Invoice all offer free plans. Pronto Invoice’s free plan includes 10 invoices/month with full mobile app access and offline support. Wave offers unlimited free invoicing with accounting. Invoice Ninja and Zoho Invoice are free for up to 5 clients each.

Which Billdu alternative has the best mobile app?

Pronto Invoice is the only alternative built mobile-first with fully native iOS and Android apps, one-handed operation, offline mode, and voice input. Invoice Simple and Invoice2Go also have strong mobile apps, but neither offers full offline invoice creation or AI-powered input.

Is there a free Billdu alternative with no invoice limits?

Wave offers completely free invoicing with no invoice limits and no client limits. However, it lacks a native mobile app, offline mode, and AI features. If you need unlimited invoices with mobile and AI capabilities, Pronto Invoice’s Growth plan ($12/month) includes unlimited invoices, offline support, AI creation, and QuickBooks sync.

Which Billdu alternative works offline?

Pronto Invoice is the only alternative with full offline support — create invoices, add clients, manage items, and preview PDFs without internet. Changes sync automatically when you reconnect. Billdu and Invoice2Go have limited offline capability, but none match a true offline-first architecture.

Which Billdu alternative has AI features?

Pronto Invoice is the only invoicing app on this list with conversational AI invoice creation. Type a natural language description like “Invoice ABC Corp $1,200 for electrical panel upgrade” and the AI builds the complete invoice — matching clients, suggesting line items, and calculating taxes automatically.

Which Billdu alternative integrates with QuickBooks?

Pronto Invoice offers real-time two-way QuickBooks sync starting on the Growth plan ($12/mo). Invoice2Go also integrates with QuickBooks. FreshBooks has its own built-in accounting, making QuickBooks unnecessary. Billdu, Wave, Invoice Simple, and Zoho Invoice do not offer QuickBooks integration.

Can I switch from Billdu to another invoicing app?

Billdu stores your historical invoices in their system. When switching, your past invoices remain accessible in Billdu. Most alternatives (including Pronto Invoice) allow you to import client lists via CSV. Your historical invoice PDFs can be downloaded from Billdu before canceling. Expect to rebuild your item catalog and invoice templates in your new tool as you go.

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All pricing and feature information verified on each product’s official website as of February 2026. Pricing and features may have changed. Visit each product’s website for the most current information.