Off the train
The Shopify App Store is the conveyor. Every app we publish rides it, ready to install and self-contained: take the piece you need, leave the rest. Nothing you install brings along a suite you did not ask for.
Sushinet · a Sydney Shopify studio
We roll sushi apps.
Or curate a personalised Shopify experience.
Omakase — “I'll leave it to you.”
Sushinet is a small Sydney studio that has worked on Shopify since 2018, two ways: we roll our own focused apps, ready to take off the counter — and, when a store needs more, we take the whole job on and curate a personalised experience for you. Same hands either way, and no surprises.
Every piece is served the same way
A good counter never puts something in front of you without knowing how it will land. Neither do we — and that holds whether you are installing one of our apps or handing us a build. The way store tooling goes wrong is almost never a missing feature. It is a change that quietly did something other than what it said.
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You see it before it is real
Every app we ship can show you what it would do to your actual store before it does anything, and every piece of custom work is scoped and costed in writing before a line is written. Nothing we build asks you to find out afterwards.
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One job, done properly
Each app is small enough to explain in a sentence and does that one thing completely. Installing one never drags in a suite you did not ask for, and it never needs code in your theme — so there is nothing to unpick if you remove it.
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The people who built it answer for it
Support goes to the developers, not a queue — the same people who wrote the code, and who are still running the apps in production. Being small is the only reason we can promise that, which is why we intend to stay small.
Take a piece off the train, or ask for omakase
We make each app the way a good counter makes each piece — small, complete, and doing one job properly. Two ways to be served.
Omakase — custom work for your store
When the published apps don't cover it, we take it on ourselves: customising your Shopify storefront, extending one of our apps, or building something new around how your store actually trades.
Pricing is out in the open — $200 an hour, no packages or retainers. Tell us what you need; we scope it and send a quote with the estimated hours up front. Approve it and you grant us Shopify Partner access limited to the scopes that piece of work requires, and we start. Any later work or extra access follows the same short path — scoped, quoted, and approved before anything begins.
What we take on
We build our own apps and run them. Ruleproof is live on the Shopify App Store, Rules2Tag is close behind it, and the same people answer the support for both — so every problem a merchant hits comes back to the people who wrote the code. Custom work is those same hands and the same standard, pointed at your store instead of ours.
- Shopify apps — public, or custom-built for one store
- Shopify Functions and checkout extensions
- Themes and storefront work — including custom sections and templates
- Auto-tagging and workflow automation across orders, customers and products
- Extending one of our apps to do the thing your store needs
- A second opinion on a Shopify build that is not behaving
Send a written brief and you get a scoped quote back with estimated hours within two business days — at $200 an hour, with no packages and no retainer. If you would rather talk it through before writing anything down, that is the other button.
On the train now
Ruleproof is our first app, and it is live on the Shopify App Store. More pieces are being prepared — each one small enough to explain in a sentence, and built to the same rule: no surprises.
Stops checkout when the address is a PO Box — except when the customer is tagged wholesale.
You write the conditions; this sentence is the rule engine explaining itself back to you — the same engine compiled into your checkout Functions, not a paraphrase written by us.
Ruleproof
Checkout rules, with a preview and a monitor mode.
Hide, rename or reorder shipping options. Hide payment methods. Block checkout on conditions like postcode, cart total, weight or customer email — including exemptions, which most rule apps cannot express at all.
Real rules, described by the engine
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Shipping
No express delivery to remote postcodesHides Express when the postcode is 6770, 0800...0899 or 787*.
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Exemptions
Block PO Boxes, except wholesale customersStops checkout when the address is a PO Box — except when the customer is tagged wholesale.
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Payment
No cash on delivery over $300Hides the Cash on Delivery payment method when the order total is at least 300 USD.
- Preview against a test cart and address, with the deciding rule named
- Monitor mode records what a rule would have done, before it does it
- A linter that refuses to save a rule which can never fire — or fires on everything
- Coverage that states where Shopify will not run a rule, including where its own docs disagree
- An emergency stop that pauses every rule at once
- A free tier that works on a live store — not dev-stores-only
See what Ruleproof does Privacy policy Data processing agreement
Rules2Tag
Auto-tag customers, orders and products by rules you define.
The same no-surprises approach, for tagging instead of checkout: a plain-English rule applies a tag when its condition matches, and takes it off again when that condition stops holding. Customer tags like lifetime-spend tiers are backfilled against your order history rather than waiting for data to accumulate from scratch.
See Rules2Tag Pricing See the auto-tagging guides Tell me when it launches
Contact
Support, privacy requests, and anything else: support@sushinet.fyi. A real person reads it.
No contact form? Ha — got you there, bots. Just send us an email ;)
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