The features your store needs that no app sells: built on Liquid, Hydrogen and the Shopify APIs, owned by you outright, and scoped to a fixed price before we write the first line.
140 stores built, 8 years on the platform, senior engineers only
Codioo builds custom Shopify features: buying flows, configurators, wholesale logic, customer portals and API surfaces that apps do not sell. Everything is built on Liquid, Hydrogen and the official Shopify APIs so platform upgrades do not wipe it out, priced from $5,500 with fixed quotes, and handed to your repositories at launch. If an existing app solves your problem for less, we will say so and send you to it.
Custom means built for you, on the platform's rails. These are the shapes it usually takes.
Subscription boxes with swap rules, made to order workflows, quotes and approvals, rental flows: the commerce logic your business actually runs on, not the one apps assume.
Step by step builders for customisable products, with live pricing, constraints and a clean handover into the cart and production notes for your team.
Account areas where B2B buyers reorder from price lists, subscribers manage deliveries, and members reach content tied to their purchase history.
GraphQL front ends on Hydrogen for content heavy stores, or custom JavaScript islands inside a Liquid theme where full headless is too much.
Custom pages inside the Shopify admin that give your staff the one screen they actually need: pick lists, bulk actions, content approvals.
The connective tissue to ERPs, PIMs and internal services: authenticated endpoints, queueing, retries and the observability to know it is working.
The test is simple: if you have searched the app store twice and stitched three apps together to fake it, it is custom work.
You are paying for three apps to approximate one behaviour, and their edges show to customers.
Quotes, approvals, rentals or configuration steps that standard carts cannot express without hacks.
App fees that scale with your volume, for logic you could own outright in one build.
Your team exports to spreadsheets to do work the admin should do for them.
Editorial, education or community content that needs to sit inside the buying experience, not beside it.
The systems you connect need transformation and rules, not just field mapping.
Budget shape matters as much as budget size in custom work. We quote fixed prices against signed scope, but the scope is sequenced so the money path ships first: the configurator works before the admin settings page is pretty, the subscription charges before the reporting dazzles. That ordering means you can stop after any stage and still hold working software, which is how custom projects stay honest. If a quote front loads infrastructure and back loads the feature you actually asked for, the incentives are pointed the wrong way.
Every platform has a graveyard of custom work that the next update killed. Shopify's contract is clear: inside Liquid themes, inside Hydrogen, inside Functions and the official APIs, your code is safe. Outside them, in private scripts that monkey patch checkout or scrape the admin, it is not. We build only inside the contract. When a client arrives carrying fragile work, replacing it is usually the first line of the scope, because that kind of debt compounds quietly until a Tuesday update calls it in.
Owning code changes the economics of features. A subscription app that charges a percentage of recurring revenue costs more every month you grow; a custom app costs its build once and then maintenance, which we cap in care plans. We model both options against your real order volume in the audit, with the break even point stated. Roughly a third of the time the app wins and we tell you that, because a client who trusts the no is a client who believes the yes.
Custom work is where senior engineers pay for themselves. The difference between a junior and a senior implementation of, say, a configurator is not visible in the demo: it shows up in the edge cases, in cart mutation races, in what happens when a customer refreshes mid flow on a train tunnel connection. Our builds ship with tests around the money paths, error states a customer can understand, and instrumentation so that when something misbehaves you get one alert with context, not silence.
Handover is part of the build, not an afterthought. Your repositories hold the code from day one, with commit history your future team can read. Documentation covers architecture decisions, not just endpoints. At launch we run a recorded walkthrough for your developers and leave them a runbook. If you never call us again, the work still belongs to you, and that is deliberate: our care plans win renewals by being useful, not by being the only door out.
Discovery here is heavier than in theme work, because the whole point is logic that does not exist yet.
Step 1
Week 1
We map the behaviour you need against what apps already cover, and publish a build versus buy comparison with real costs.
Step 2
Weeks 1 to 2
Data model, API surfaces, state machines and edge cases written down as a design doc you sign before code.
Step 3
Weeks 2 to 3
The core flow works end to end on staging early, ugly but real, so course corrections cost hours not weeks.
Step 4
Weeks 3 to 8
Full feature build with tests on the transactional paths, error states, instrumentation and performance budgets.
Step 5
1 week
Feature flags on, monitored rollout, rollback path documented and rehearsed.
Step 6
Ongoing
Repository transfer, developer walkthrough, then care plan or your team, your choice.
Chosen for upgrade safety and hiring depth: your future team will find people who know these.
Numbers with baselines and measurement windows. The full library is on the case studies page.
Aura Rituals
Aura Rituals ran subscriptions through an off the shelf app that could not express their bundle and swap rules. Subscribers hit dead ends changing pro...
-19%
Subscription churn
Loom & Lane
Loom & Lane sells premium essentials to a loyal list, but the store ran on an aging custom platform that fought every campaign. Collection pages took ...
+31%
Conversion rate
Hearthside Living
Hearthside Living sells across two storefronts and a marketplace while stock truth lives in NetSuite. The nightly sync ran every six hours, so peak se...
<2 min
Order sync latency
Pricing and timelines
Fixed quotes against signed scope. The ranges below are where our recent custom builds have landed.
| Project type | Price from | Timeline | What is included |
|---|---|---|---|
| Scoped feature (one flow) | $5,500 | 4 to 6 weeks | Design doc, build, tests, launch, documentation |
| Product configurator | $8,000 | 6 to 8 weeks | Builder UI, pricing rules, cart and production handoff |
| Customer or B2B portal | $10,000 | 8 to 10 weeks | Account area, reordering, price lists, approvals |
| Custom storefront on Hydrogen | $15,000 | 10 to 16 weeks | Front end, CMS, edge caching, launch |
| Custom retainers | $1,800/mo | Ongoing | Agreed monthly capacity, roadmap, priority support |
What changes the price
Updated 2026-09-21. Prices in USD, fixed per signed scope. See the full cost guide for every driver.
The replatform paid for itself inside two quarters. Codioo scoped honestly, held the timeline, and the new store converts better in month one than our old one did at peak.
They are the rare agency that argues with you when you are wrong. The subscription app they built cut our churn and our support load at once.
Preset answers about scope, price ranges and timelines. The audit turns them into numbers for your store.
Ask about your project
Instant answers, no chat window
Still unsure? The free store audit answers these for your store specifically, with numbers.
The questions clients ask before signing, answered plainly.
Tell us your store and goals. Within one business day you get the audit findings and a fixed price for custom shopify development, with a named team and a launch date.