Invoice Fly vs Invoice Ninja: Which Is Better?

Invoice Fly vs Invoice Ninja is a close comparison because both cover many of the same small-business billing needs. You can create invoices, manage recurring billing, track time and expenses, and accept online payments with either platform.

The differences become clearer when you look at how those tools are packaged. Invoice Fly offers a paid, ready-to-use invoicing platform with unlimited invoices and estimates. Invoice Ninja has a permanent free tier for up to five clients, more configuration options, and the ability to self-host.

We’ll compare their features, pricing, setup, and everyday use to help you decide which approach makes more sense for your business.

Invoice Fly vs Invoice Ninja at a glance

*US pricing checked September 2026. Features and payment-provider fees may change.

There is plenty of overlap between the two. Invoice Ninja offers a Free plan, self-hosting, and additional configuration options. Invoice Fly takes a more focused approach, bringing the main billing tools service businesses need into one managed platform without client limits.

Create and Send Invoices with Invoice Fly

Whether you’re billing clients weekly, monthly, or per project, Invoice Fly helps you create professional invoices, track payments, and stay organized from anywhere.

Try it for free >

What is Invoice Fly?

Invoice Fly follows the billing cycle of a typical service business, from preparing an estimate to invoicing the client and tracking payment.

It brings unlimited invoices and estimates together with recurring billing, payment reminders, client records, time and expense tracking, and business reports. This can be particularly useful for freelancers and contractors who manage their own billing and want to keep the process in one place.

You can also read independent Invoice Fly reviews on Capterra.

What is Invoice Ninja?

Invoice Ninja combines invoicing with quotes, recurring billing, expenses, projects, and time tracking. Its permanent Free plan supports up to five clients, while paid plans remove that limit and add more features.

One of its more unusual options is self-hosting. Instead of using Invoice Ninja’s hosted service, technically confident users can install the software on infrastructure they control.

For another perspective, see Invoice Ninja reviews on G2.

Invoice Fly vs Invoice Ninja: Key differences

Both apps can handle everyday invoicing. The more important differences appear when you consider client limits, project tools, customisation, device access, and how much control you want over the software itself.

Free plan, pricing, and client limits

The main pricing difference is Invoice Ninja’s permanent Free plan versus Invoice Fly’s paid plans without client limits.

• Invoice Ninja Free: Supports up to five clients, with unlimited invoices, recurring billing, four templates, payment gateways, time tracking, expenses, and a client portal.
• Ninja Pro: Removes the client limit and adds more templates, customisation, and automatic late-payment reminders.
• Invoice Fly: Has no permanent free tier, but its pricing plans include unlimited invoices and estimates without client limits.

If you only have a few regular clients, Invoice Ninja’s Free plan may cover what you need. For a growing client list, compare Invoice Fly with Invoice Ninja’s paid plans rather than the Free tier.

Invoices, quotes, and recurring billing

Both platforms cover the core invoicing tasks most freelancers and small businesses need.

• Invoice Fly: Create estimates, convert them into invoices, set up recurring billing, send reminders, and track invoice status. Its estimate and quote software keeps the process connected from quote to payment.
• Invoice Ninja: Supports quotes, invoices, recurring billing, and auto-billing, including on its Free plan. Paid plans add more customisation and automation.

There isn’t a major difference if you simply need to create and send invoices. The choice depends more on the surrounding tools and how much control you want over your setup.

For repeat billing, see our guide to invoice automation, or compare different types of invoices.

Online payments, deposits, and client portals

Both platforms offer online payments and client portals, with plenty of overlap in their core features.

• Invoice Fly: Supports online payments through Stripe and PayPal, as well as deposits from estimates.
• Invoice Ninja: Works with gateways including Stripe, PayPal, Square, and GoCardless, and supports deposits and partial payments.
• Client portals: Both give customers access to invoices, estimates or quotes, statements, and payment information. Both also support estimate or quote approval, while Invoice Ninja offers additional options such as saved payment methods.

The main difference here is payment gateway choice rather than the basic billing workflow. Invoice Ninja supports a wider range of gateways, while Invoice Fly covers the core payment and client portal features many service businesses need.

Whichever platform you use, clear invoice payment terms help customers understand what they owe and when payment is due.

Expenses, time tracking, and project tools

Both platforms let you track billable time and expenses alongside your invoices.

Invoice Fly focuses on the day-to-day admin of client work, including time tracking, expenses, and receipt scanning. Its time-tracking software can be particularly useful when you charge clients by the hour.

Invoice Ninja adds a broader set of project tools, including projects, vendors, purchase orders, and Kanban boards.

If you want project management built into your invoicing software, Invoice Ninja gives you more tools to work with. If your priority is keeping hours, costs, and client billing together, Invoice Fly keeps the workflow more focused.

Templates, branding, and customization

Both platforms let you create professional, branded invoices, but Invoice Ninja offers more template options on its paid plans.

• Invoice Fly: Customise invoices while keeping the design process relatively straightforward.
• Invoice Ninja Free: Includes four invoice templates.
• Ninja Pro: Includes 11 professional templates, removes Invoice Ninja branding, and adds more design customisation.

Invoice Ninja may suit businesses that want more control over invoice design. If you mainly want to create consistent, professional invoices without much configuration, Invoice Fly takes a more straightforward approach.

Mobile, desktop, and browser access

Where you usually handle your admin may influence which platform works better for you.

Invoice Fly provides browser and mobile access, making it practical for contractors and service professionals who need to create estimates or manage invoices away from a desk.

Invoice Ninja works across web, iOS, and Android and also offers dedicated apps for macOS, Windows, and Linux.

If a desktop app is important to you, Invoice Ninja offers more options. If you mainly work from your phone or browser, both platforms cover those needs.

For the billing process itself, see how to send an invoice.

Cloud hosting, self-hosting, and installation

This is one of the clearest differences between the two platforms.

• Invoice Fly: Fully managed, with no software installation or server maintenance required.
• Invoice Ninja hosted: Also ready to use without managing your own server.
• Invoice Ninja self-hosted: Can be installed on your own infrastructure using options including Docker/Podman or manual server installation.

Self-hosting gives technically experienced users more control, but you’re also responsible for setup and maintenance. If you don’t want to manage software infrastructure, the hosted versions of either platform are likely to make more sense.

Invoice Ninja currently uses the Elastic License 2.0, so the software is best described as source-available rather than simply open-source.

Privacy and data control

The privacy comparison changes depending on whether you use Invoice Ninja’s hosted or self-hosted version.

Self-hosted Invoice Ninja: Self-hosters own and are responsible for the data stored in their installation, and Invoice Ninja states that it cannot access, modify or remove that hosted data. Some account information may still be collected by Invoice Ninja, as explained in its self-hosting privacy policy.

Hosted Invoice Ninja: Invoice Ninja manages the hosted environment, so users don’t have the same direct control over where the software and business data are hosted.

Self-hosting gives you greater control over the environment, but also more responsibility for managing it correctly. A managed platform such as Invoice Fly removes much of that technical responsibility.

Ease of use and setup

If you want to start invoicing without making many technical decisions, Invoice Fly keeps the process centred on the everyday billing tasks most service businesses need: estimates, time, expenses, invoices, and payments.

Invoice Ninja’s hosted version is also ready to use, so self-hosting isn’t a requirement. However, you have more choices around plans, templates, projects, gateways, desktop apps, and configuration.

That flexibility is useful if you want to shape the software around your workflow. Invoice Ninja gives you more ways to configure the platform, while Invoice Fly keeps more of the setup focused on everyday invoicing and billing tasks.

Invoice Fly vs Invoice Ninja pricing

The starting prices can be misleading because the platforms structure their plans differently.

US pricing and plan details checked September 2026.

Invoice Fly includes unlimited invoices and estimates with both options.

Invoice Ninja’s Free plan may be enough if you manage five or fewer clients. Beyond that, Ninja Pro removes the client limit, while Enterprise pricing increases based on the number of users.

Invoice Ninja also lists a $40-per-year white-label licence for self-hosted users. This is an optional licence rather than the cost of the self-hosted software itself.

The useful comparison is therefore not simply free versus paid. Consider your client count, the features you’ll actually use, and whether tools such as project management, additional templates, or self-hosting matter to your business.

Where each app works best

Your day-to-day workflow can make the decision clearer than a long feature list.

Invoice Ninja gives you more room to configure how the software works, particularly if you want project tools, desktop apps, or control over hosting. Its Free plan also makes it accessible for businesses with a very small client list.

Invoice Fly keeps more of the attention on the quote-to-payment process. For freelancers, contractors, and service businesses managing a larger number of clients, that can mean fewer decisions around plans, hosting, and configuration.

Neither platform replaces complete bookkeeping or financial management. The SBA provides broader guidance on managing business finances, while the IRS explains business recordkeeping requirements.

Invoice Fly vs Invoice Ninja: Which should you choose?

Invoice Ninja may suit you if you have five or fewer clients and want a free plan, or if features such as self-hosting, desktop apps, and project management are priorities.

Invoice Fly may suit you if you want unlimited clients, straightforward estimates and invoicing, built-in time and expense tracking, payment reminders, and a managed platform without technical setup.

The right choice comes down to the way you work. Consider your client count, the billing tools you’ll use regularly, and how much setup and customisation you actually need.

Create and Send Invoices with Invoice Fly

Whether you’re billing clients weekly, monthly, or per project, Invoice Fly helps you create professional invoices, track payments, and stay organized from anywhere.

Try it for free >