Invoicing Software for Linux: What Actually Installs, and What It Needs

Search for invoicing software for Linux and almost everything you find is a website. Wave, FreshBooks, Zoho, QuickBooks Online — they run on Linux in the sense that Firefox runs on Linux. That is a real answer for some people and a useless one for others, and the lists never distinguish between the two. This is about the narrower question: what actually installs on a Linux desktop, runs when the connection drops, and keeps your books in a file you can copy to a USB stick.

Key takeaways

• "Works on Linux" usually means "works in a browser." Only a handful of invoicing tools ship a native Linux desktop build.
• Two package formats cover almost every distro — a .deb for the Debian and Ubuntu family, an AppImage for everything else. You do not need both.
• The most common install failure is a missing library, not a broken app. We shipped exactly that bug ourselves and it is described below, along with the one-line fix.
• Check the architecture before you download. Most Electron-based business apps, ours included, are 64-bit x86 only. A Raspberry Pi or an ARM laptop will not run them.
• Daily Invoice Maker is $149.95 once for Windows, Mac and Linux, with a free demo that is the full app capped at seven invoices.

What "runs on Linux" actually means

There are four different things vendors mean by Linux support, and they are not interchangeable. Before you compare features, work out which row you are actually being sold.

The self-hosted option is genuinely good if you are comfortable running a database and a web server, and if you enjoy the maintenance. That is a real if. A sole trader who bills fifteen clients a month does not want to be on call for their own invoicing stack when a PHP upgrade breaks it in March.

The catch with the browser-only options is not that they are bad software. It is that the thing you are buying is access, not a program. Stop paying and you stop having an invoicing system, including for the invoices you already wrote. That matters more on Linux than elsewhere, because the people who choose Linux have usually already thought hard about who controls their machine.

Installing the .deb on Debian, Ubuntu or Mint

Download the file, then install it with apt rather than dpkg -i. The difference matters: dpkg will install the package and then tell you about missing dependencies afterwards, whereas apt reads the package's dependency list and fetches what is missing in the same step.

cd ~/Downloads
sudo apt install ./DIMv2_5.28.7_amd64.deb

It lands in your applications menu, and daily-invoice-maker-v2 starts it from a terminal. To remove it later, sudo apt remove daily-invoice-maker-v2. Your data file is not in the package and is not deleted with it.

The AppImage, for Fedora, Arch, openSUSE and everything else

An AppImage is one file that contains the whole application. Nothing is installed system-wide, nothing needs root, and uninstalling means deleting the file.

chmod +x DIMv2-5.28.7.AppImage
./DIMv2-5.28.7.AppImage

One pitfall worth knowing before it bites you: Ubuntu 24.04 and later restrict unprivileged user namespaces, which is the mechanism Chromium-based apps use to sandbox themselves. An AppImage that exits immediately with a sandbox or namespace error is hitting that restriction, not a corrupt download. Running it as ./DIMv2-5.28.7.AppImage --appimage-extract-and-run sidesteps it, and the .deb avoids it entirely because its installer sets the correct permissions on the sandbox helper.

The install problem nobody warns you about

Here is a failure we caused, found by running our own build, and fixed — because it is the single most common way a Linux desktop app fails on first launch, and the error message tells you nothing useful about whose fault it is.

$ daily-invoice-maker-v2
daily-invoice-maker-v2: error while loading shared libraries:
libasound.so.2: cannot open shared object file: No such file or directory

That is the dynamic loader, before a single line of the application has run. The binary links against ALSA, the Linux sound library. Every mainstream desktop install already has it, so the bug is invisible on a normal Ubuntu or Fedora desktop — but our package did not declare the dependency, so on a minimal install there was nothing to tell apt to fetch it. We found it because we tested the build on a stripped-down Ubuntu image rather than a desktop one. The 5.28.7 package declares libasound2 and libgbm1 alongside the nine libraries it always declared, so apt now installs them for you.

The general rule, which applies to any Linux app and not just ours: "error while loading shared libraries" is always a missing package, never a broken download. Install the named library and run it again. If you hit one on a minimal install, the fix is one command and the error names the file.

What your machine needs

What it does once it is running

The Linux build is the same application as the Windows and Mac builds, compiled for Linux — not a cut-down port and not a wrapper around the website. Invoices and estimates with your logo, attached photos, recurring monthly billing, a customer list, expenses with receipt images, mileage, time tracking, service agreements, and bank statement import that reads Chase, Bank of America, Wells Fargo, Amex, Capital One, PayPal, Venmo, Cash App and generic CSV or OFX exports.

At year end it produces a Schedule C summary, a Schedule E report for rental books, a sales tax report grouped by state and rate, and export files for TurboTax, QuickBooks and Xero. The IRS publishes the forms those map onto — Schedule C for a sole trade and Schedule E for rentals — and the report prints the line numbers so you or your accountant can check the arithmetic rather than trust it.

Where your data actually lives

One SQLite file in your home directory. You can copy it, back it up with the same script you use for everything else, put it on an encrypted volume, or open it with sqlite3 and run your own queries against it. There is no account, and the application does not need the network to open.

If you use more than one machine, the app syncs over your own WiFi between a desktop and a phone, or through your own Google Drive as an optional add-on. Neither is required, and neither puts your books on our servers — we do not have a copy of your data and no part of the product depends on us staying in business.

Who this is not for

Being honest about the limits is faster than making you find them.

• ARM users. No build exists for aarch64. A Pi, an ARM Chromebook or an ARM workstation cannot run it today.
• Teams who need simultaneous multi-user access. This is a desktop application over a local file. Two people editing at once is not what it is built for.
• Anyone who wants a customer-facing payment portal. You can put a Stripe or PayPal link on the invoice, but there is no hosted portal, because there is no host.
• Businesses that need payroll. It does invoicing, expenses and tax reporting. It is not a payroll system.

The bottom line

If you are happy in a browser and happy paying monthly, the web apps are mature and you should use one. If you want a program that installs on your Linux desktop, opens without a connection, keeps its data in a file you own, and costs one payment rather than a subscription, the native list is short — and it is worth checking the architecture, the glibc floor and the declared dependencies before you commit, because those three things decide whether it runs at all.

The Linux download and the full install steps are here. The demo is the complete application, capped at seven invoices, seven customers and seven expenses, with a watermark on exported PDFs. No account and no card. If you also want the monthly billing side of this, that is covered in billing software for Linux.

FAQ

Does Daily Invoice Maker have a native Linux version?

Yes, since version 5.28.5. It ships as a 64-bit .deb for Debian, Ubuntu, Mint and Pop!_OS, and as an AppImage that runs on any modern distro. It is the same application as the Windows and Mac builds, not a browser wrapper, and it runs entirely offline.

Is there a Flatpak or a Snap?

Not yet. The .deb and the AppImage between them cover essentially every desktop distro, so those came first. The AppImage is the closest equivalent to a Flatpak in practice: one file, no system-wide install, no root.

Will it run on a Raspberry Pi or an ARM laptop?

No. Both Linux files are 64-bit x86 only. There is no aarch64 build, and the AppImage will not run under emulation at a usable speed.

Do I need a separate licence for Linux?

No. The $149.95 lifetime licence covers Windows, Mac and Linux, so the same key activates the app on a Linux desktop and on a Windows laptop. The Android app is a separate Google Play purchase, because Google requires Android purchases to go through Play.

Why is the download so large for an invoicing app?

It bundles its own browser engine and runtime, which is what lets the same code run identically on Linux, Windows and Mac without depending on what is installed on your machine. The trade is about 700 MB of disk for an app that has no runtime prerequisites beyond standard desktop libraries.

Are the Linux files signed?

No, and nothing on Linux checks. Linux has no equivalent of Windows Authenticode or Apple notarization, so there is no publisher prompt to click through — and no signature to verify either. If that matters to you, checksum the file and run it in a container first.