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Custom software development · fixed price from $199

Custom software development that replaces the spreadsheet

Custom software development for small and mid-size teams that run on spreadsheets, inboxes and retyping. Describe the process that wastes your week; within about a minute an AI agent sends a written plan and one fixed price, from $99 for a small tool to $4,999 for a full internal system.

  • Fixed-price proposal in about a minute
  • Pay only if you accept
  • Engineer review on every delivery
  • 2 revisions · full refund if we can't deliver

Describe your custom software development job

0/5000 · more detail = a sharper price

Free to post · no account · you only pay if you accept · from $99

Pricing

Custom software development pricing

Fixed prices, agreed before any work starts. Your proposal is priced for your exact brief.

Single-purpose tool

4–6 days
from $599

One repetitive job, like building quotes or merging exports, eats hours every week.

  • A fixed scope and price agreed before any work starts
  • A small web tool or script with a simple screen for your team
  • Existing data imported from your spreadsheets or CSV files
  • Plain-English instructions for the people who will use it
  • Two revision rounds after your team tries it
Get my fixed price

Internal system

3–4 weeks
from $2,999

A whole process, such as orders, jobs or approvals, is scattered across sheets and email threads.

  • A database designed around your records, not a generic template
  • Sign-in with separate roles for staff, managers and admins
  • Screens for the daily workflow plus a reporting view
  • One or two integrations, such as accounting, email or your online store
  • Code and hosting set up in accounts registered to your business
  • Engineer review before handover
Get my fixed price

Retainer

Ongoing
$399/mo

You already run software, ours or anyone's, and the change list never really ends.

  • As many small requests as you like, handled one by one
  • Typical small request done within 1–3 business days
  • New fields, reports, exports, permissions and fixes
  • Larger features quoted separately as fixed-price jobs
  • Month to month, cancel any time
Start Retainer

Typical jobs

What people hire us for

Indicative fixed prices for common requests.

Merge three weekly CSV exports into one clean management report

from $199 ~2 days
Post this job

Sync new store orders into your accounting software every hour

from $399 ~4 days
Post this job

Turn your pricing rules into a quote calculator that emails a branded PDF

from $699 ~6 days
Post this job

Replace a shared order spreadsheet with a form, database and status board

from $999 ~8 days
Post this job

Inventory tracker with barcode lookup, low-stock alerts and a weekly summary

from $1,999 ~14 days
Post this job

Supplier portal where vendors confirm purchase orders and delivery dates

from $2,499 ~18 days
Post this job

Custom software at small-business scale

Most small and mid-size businesses don't need a giant platform. They need the one process held together by a spreadsheet, a shared inbox and someone retyping the same order into three systems to finally work properly. At this scale, custom software development means an internal tool, a client or supplier portal, or an integration that moves data between apps you already pay for, shaped around how your team actually works instead of how an off-the-shelf product assumes you work.

Start by describing the process, not the technology. Tell the agent what comes in, who touches it, what goes out and where it breaks today. It answers with a written proposal covering screens, roles, the fields each record holds, integrations, a delivery date and one fixed price. You can ask questions, cut scope or add to it before paying, and the price moves with the scope. Small tools usually land between $199 and $999; a full internal system with roles and reporting typically costs $1,999 to $4,999.

Marketplace jobs stop at $4,999, and we say so up front. That ceiling covers a focused internal system with a handful of screens, roles and integrations. It does not cover an ERP replacement, software that must talk to a dozen legacy databases, or anything needing formal compliance audits. Those go through our custom projects service, which begins with a scoping call and ends in a fixed-scope plan. Often the smarter move is to split the work: ship the part that hurts most as a marketplace job, then decide on the rest with real usage in hand.

AI agents write the code, and a GrahAI engineer checks each delivery before it reaches you. Two revision rounds are included, and if the agreed scope proves undeliverable, your payment comes back in full. Everything delivered belongs to you: source code, database and hosting all sit in your name, so any developer can pick it up later. After kickoff you add us as a collaborator on the accounts the job needs; nobody will ask you for a password in chat. Once the build ships, a Retainer keeps change requests moving.

Before you hire

Questions people ask first

How much does custom software cost for a small business?

With GrahAI agents, every job has one fixed price agreed before work starts. A script or single-purpose tool usually costs $199 to $999. An internal system with sign-in, roles, a few workflows and one or two integrations usually costs $1,999 to $4,999 and takes two to four weeks. Many software development companies begin with a paid discovery phase before they quote the build itself. If your project is bigger than $4,999, we scope it as a custom project rather than stretching a marketplace job to fit.

Should I hire a software developer or a software development company?

Hire a developer when you have a continuous stream of work and someone able to manage them; a full-time salary only pays off when there is a full-time workload. Choose a software development company when the project is large, long-running or regulated and you want a team with project management built in. For a defined tool or system under $4,999, a fixed-price job usually costs less than either, and a monthly Retainer covers the ongoing changes a part-time developer would normally handle.

When should a business replace spreadsheets with custom software?

Watch for these signs: several people edit the same sheet and overwrite each other, someone retypes rows into another system, nobody can tell who changed what, formulas break whenever a column is added, or customers email asking for status updates you have to look up by hand. One of these is a nuisance. Three or more usually means a simple database-backed tool with sign-in, roles and a change history is worth pricing out, and posting a job tells you that price in about a minute.

How it works

From brief to delivery in four steps

Step 1

Post your job

Describe what you need in plain words. No account, no bidding war, no profile to set up.

Step 2

Get a proposal in about a minute

An AI agent replies with deliverables, a plan, a fixed price and a delivery date. Ask it anything.

Step 3

Accept and pay securely

One fixed price, paid by card through secure checkout. International cards welcome; UPI in India.

Step 4

Receive reviewed work

Agents build it, an engineer reviews it, and it lands in your job room. Two revision rounds included.

Compared

Your options, side by side

GrahAI agentsSoftware development companyFull-time hireNo-code tools
Upfront costFixed price, $99 to $4,999 per jobCustom quote, often after a paid discovery phaseSalary, benefits and recruiting costsPer-seat monthly subscriptions
First deliveryDays for small tools, up to 30 days for systemsDiscovery first, then the buildWeeks or months to recruit and onboardHours or days, if it fits a template
Fits your exact processYes, scoped to your workflow in writingYesYes, over timeOnly within the tool's limits
Who owns the codeYou, in your own repositoryUsually you; check the contractYour companyNo code; data lives on the vendor's platform
Quality checkEngineer review on every deliveryInternal QA, varies by firmYour own code review, if anyWhatever the vendor tests
Large or regulated systemsOver $4,999 becomes a scoped custom projectStrong fit with a dedicated teamStrong fit for long-term ownershipPoor fit
If you stopCancel the plan and keep everythingExit terms per contractNotice periods and handoverExport limits can trap your data

Need ongoing work?: Retainer, $399/mo

Send as many requests as you like. Agents work through them one at a time, each reviewed by an engineer before it reaches you.

See monthly plans

FAQ

Custom software development: common questions

What does a custom software development company build for small businesses?
Mostly unglamorous, high-value tools: internal apps for quoting, inventory, scheduling and approvals; portals for customers or suppliers; admin panels on top of existing databases; and integrations that sync data between products like Shopify, QuickBooks, Xero, HubSpot and Google Workspace. Most run in the browser, so staff can use them on a laptop or phone without installing anything.
Do I need to write a technical specification first?
No. Describe the job in plain English: what happens today, who is involved, and what you want to happen instead. Screenshots of the spreadsheet or a sample of the data help a lot. The agent turns that into a written scope with screens, roles and rules, and you can correct anything before you pay.
Can you work with the software we already use?
Usually, if it has an API, webhooks, an export or a database we can connect to. The agent checks what your tools allow before quoting. When a system has no way in, such as an old desktop program with no export, the proposal says so and suggests a workaround like a scheduled file drop, rather than promising an integration that won't hold up.
What happens if my project is bigger than $4,999?
There are two routes. We can split it into phases, each its own fixed-price job, so the most painful part works first. Or, for systems that need to be designed as a whole, our custom projects service starts with a scoping call and quotes a fixed-scope build. The agent will tell you which route fits your brief.
Who owns the software and the data?
You do. Source code goes into a repository in your account, the database and hosting are registered to you, and your records never sit on a platform you can't export from. There is no license fee and no lock-in, so another developer or agency can take over the code whenever you choose.
How do I pay, and can I pay in rupees?
Payment is by secure card checkout through Razorpay once you accept the proposal. Buyers outside India pay in US dollars by international card; buyers in India can pay in rupees by UPI or card. Posting a job and reading the agent's proposal require no sign-up.

Get your fixed price in about a minute

Free to post. No account. You only pay if you accept.

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Solutions Agent handles other software work jobs. Prices in USD; clients in India pay the rupee equivalent.