Business Software for Solo Consultants That Works Without a Setup Project
2026-09-13
Business software for solo consultants should cover the whole client workflow, from first inquiry to final payment, in one system. It should also work on day one, without a setup project, so you enter a client once and it flows everywhere. That's how I built SimpleMark: five connected modules, one login, one flat $29 a month.
As a consultant I jumped between ClickUp, Notion, QuickBooks, and spreadsheets, copy-pasting client names and rates screen to screen. So I built software to run my solo business better and now want to share it with you.
Why is most business software so hard for solo consultants to use?
I was on the search for some software or tool that would make running my small consulting business easier, but couldn't find any genuinely good tools. Some had great features, but were for enterprises only, some were very old and overwhelming, some solutions told me to use a Frankenstein of scripts-AI agents-software to just get my client's name from app to app.
And then I remembered that I am a developer with a business degree and decided to try my best to create a framework that actually works. Having spent years working in enterprise IT managing software projects and system migrations, I realized something critical: enterprise tools work because they enforce a unified architecture, but they fail solo operators because they require a team to maintain. Freelance tools fail because they are glorified point-solutions taped together. I had the engineering background to build the system architecture and the business degree to map the real operational flow, so I decided to bridge that gap myself.
Where the real cost was hiding
The annoying part was never any single app. Each one, on its own, did its job fine. The cost was in the seams between them: retyping a rate I'd already typed somewhere else, re-explaining a client's scope to a second tool that had no idea the first tool existed, checking three places to answer one question about where a project actually stood. None of that shows up on a single invoice. All of it adds up to hours that never got billed to anyone.
The workflow every client-facing business already runs on
When you are working in a client-facing environment the industry doesn't really matter. It's quite straightforward if you go by this workflow:
- Onboard. A potential client reaches out and provides initial project details.
- Schedule. You set up the initial call without playing email tennis.
- Propose. You define the scope of work, timeline, and deliverables.
- Execute. You do the work while tracking status and hours.
- Invoice. You issue a transparent invoice tied directly to completed tasks.
- Collect. You get paid on time without awkward chasing.
- Promote. You turn the case study into a portfolio asset to attract your next clients.
This method is plain and simple, and would work wonders. If only software would implement it for real... Well, it did.
What is all-in-one business software for solo consultants?
I built SimpleMark — business software for solo, client-facing business owners that covers everything from first meeting a client to leading them through the project to collecting payment and writing invoices. The cool part is that the system automates most of the admin work along the way, letting solo owners pay one price for something that genuinely covers 5-7 different apps.
| What you're stuck on | Module | What SimpleMark does |
|---|---|---|
| No clear read on where the business itself is headed | Clarity | Plan your business goals and track them automatically |
| No idea how much work you can actually take on | Clarity | Track your monthly capacity and see it visually |
| Money scattered across a bank app, an invoicing tool, and a spreadsheet | Foundation | Manage your finances, services/products, and recurring subscriptions |
| Client intake is a back-and-forth of forms and emails | Trust | Onboard clients through a white-label portal that pulls their info straight into the system |
| Tasks and client work bleeding into the same messy to-do list | Flow | Manage projects and tasks in a distraction-free focus mode (run your SOPs here too) |
| Marketing gets dropped the moment client work picks up | Presence | Plan and schedule social media campaigns and posts, with custom and out-of-the-box templates |
| Proposals, invoices, and client records living in three different tools | Trust | Generate and send proposals, invoices, and other documents in one click, manage client profiles in the built-in CRM |
Basically, everything your business needs in one place: strategy and planning, marketing, finances, client relationships, and of course project and task management. And it's all connected, so there's no need to input the same info twice or configure anything.
What this replaces
| Before SimpleMark | With SimpleMark |
|---|---|
| A project tool, a CRM, an invoicing app, a spreadsheet, and something for social planning | One system, one login |
| Client name and rate typed into four different places | Entered once, flows everywhere it's needed |
| Admin work squeezed in between actual client work | Admin work built into the same flow as the client work |
| A percentage of the week nobody bills for | Fewer places for that time to leak |
What's actually different about this, structurally
Most of what's out there is strong at one piece of this. Something built for client portals and contracts is genuinely good at that and nothing else, so you end up bolting on a separate tool the moment you need to think about your own business goals or your own marketing. I haven't found another one-price tool for solo consultants that puts strategy and marketing in the same place as the client work itself. That gap, not any single feature, is the actual difference.
Setup is the other one. A lot of what I tried before demanded a real configuration project before it was usable, sometimes measured in weeks, not minutes. SimpleMark's meant to work the day you sign up, because a solo consultant configuring software is a solo consultant not doing billable work.
Most platforms force you into a setup phase: creating custom databases, mapping API webhooks, and configuring relational properties. SimpleMark works on day one because its five core modules (Clarity, Flow, Trust, Presence, and Foundation) share a single pre-wired data schema. When you add a client in Trust, their billable rate instantly populates your financial capacity in Clarity and your task runner in Flow. You don't build the connections, they are hardcoded into the foundation.
And I'd rather be upfront about the data question too: nothing here trains on your client data. That's a line I decided on early and haven't moved on. For professionals handling sensitive client strategies, non-disclosure agreements, or financial metrics, sending data into third-party AI training pipelines is an uncalculated risk. Keeping data localized in-house ensures your clients' confidential information remains strictly yours.
Where this actually diverges from what you've probably already tried
You've probably already looked at Bonsai, HoneyBook, or Dubsado, or tried Plutio, Indy, 17hats, Moxie, or Agiled. All of them are real client-facing tools, and none of them are pretending. But look closely at what each one is actually built to do, and a pattern shows up.
Bonsai and Dubsado go deep on the client-delivery pipeline: contracts, e-signatures, invoicing that fires automatically once a contract's signed. Good at that, built for it. Neither one has anything for planning your own business goals or your own marketing, because that was never the job they were built to do.
HoneyBook leans the same direction from a different angle, branded "smart files" that bundle a proposal, contract, and invoice into one client-facing flow. Strong at that specific moment, the transaction with the client. It's not built to think about your business beyond that transaction, and worth knowing if data privacy matters to you: it uses AI on your data to draft things like emails and call summaries.
Indy and Plutio both call themselves more of a full toolkit, closer to what SimpleMark is trying to be. Indy in particular pitches itself on getting a contract signed and getting paid, full stop. Neither has a strategy or marketing layer sitting next to the client work. 17hats and Moxie both lean into heavy automation and multi-tier client portals, built for people running a high volume of standardized work, not a consultant whose scope changes with every client. Agiled's the outlier, genuinely feature-dense with its own AI layer, but it's built and priced for a small team, not one person.
Then there is the other end of the spectrum: building your own setup in Notion, ClickUp, or Airtable. While infinitely flexible, modular platforms carry a hidden tax: you become the software administrator for your own business. Every hour spent tweaking database views, writing formulas, or fixing broken Zapier integrations is an hour spent outside your billable work. SimpleMark offers the unification of a custom Notion workspace without the burden of maintaining it.
None of that makes any of them bad tools. It means each one solves a slice of the seven-step workflow above, well, and leaves you to find something else for the rest. SimpleMark's bet is that the slice that's usually missing, strategy and marketing sitting next to the actual client work, matters enough to build the whole loop around instead of bolting it on later.
Setup tracks the same pattern. Some of the tools above take real time to configure before they're usable. SimpleMark's meant to work the day you sign up.
How much does all-in-one software for a solo consultant cost?
I noticed a lot of platforms/apps use a "per seat" model, which means someone running a business alone pays more for something they don't even need. So the price is flat and simple, the only difference is payment frequency.
When you stack a CRM ($30/mo), a project tracker ($15/mo), an invoicing tool ($20/mo), a social media scheduler ($18/mo), and an onboarding portal ($30/mo), running an independent practice costs over $110 every month before factoring in integration tools. SimpleMark offers all five connected modules for a single flat rate ($29/month). No per-seat penalties, no paywalled features as your client list grows.
Software built for the business of one
Running an independent practice shouldn't require managing an IT infrastructure. SimpleMark exists to give solo, client-facing professionals the structural backing of an enterprise system with the friction-free simplicity of a single app, so you can spend less time running software and more time doing the work you get paid for.