Shopify workflow appsBuilt for Shopify

Better tools for the work behind every order.

Designed for five-star approval experiences

99AppStudio builds focused Shopify apps that turn messy operational steps into clear, reliable workflows—starting with artwork approval for custom products.

See the workflow
Native Shopify workflowCustomer-friendly approvalsBuilt for production teams
Live product interface
ProofLock dashboard showing artwork approval requests and production status
One clear path to production.Order → proof → approval → locked artwork
The 99AppStudio portfolio

Small apps. Serious operational impact.

We build purpose-made tools for merchants who need fewer workarounds, clearer handoffs, and more confidence in every order.

Approved by Shopify

Artwork approval that stays connected to the order.

Upload proofs, collect feedback, lock the approved version, and give production the file they can trust.

What comes next

More focused apps are on the way.

99AppStudio is building a portfolio around the real operational gaps merchants face every day.

ProofLock workflow

From Shopify order to production-ready artwork.

A repeatable approval process for embroidery, engraving, printing, signage, personalized gifts, and other made-to-order products.

Open the order

Start the proof request from the Shopify order and keep every item tied to its source.

Upload artwork

Add the first proof, notes, and subsequent versions without losing context.

Collect approval

Customers approve or request changes from a secure, mobile-friendly link.

Release production

Lock the approved version and generate a clear, printable work order.

ProofLock customer artwork approval page on a mobile-friendly screen
Designed for both sides

A simpler decision for customers. A cleaner handoff for your team.

The customer sees the artwork, product, version, and two clear choices. Your team gets a durable record of what was approved and when.

  • No customer account or confusing portal required
  • Approve artwork or explain requested changes
  • Every version and decision stays in the activity history
  • Approved artwork is locked before production release
  • JPG, JPEG, PNG, WebP and PDF files up to 20 MB
Everything in context

Built around the approval work you already do.

ProofLock replaces scattered messages and ambiguous files with a workflow your sales, artwork, and production teams can follow.

01

Order-linked proofs

Artwork requests, products, quantities, and customer details stay connected to the Shopify order.

02

Version history

Keep each revision in sequence so the team always knows which file the customer reviewed.

03

Approval emails

Send and safely resend branded approval links with reminders for outstanding decisions.

04

Change requests

Collect actionable customer feedback beside the exact artwork version it refers to.

05

Production lock

Prevent accidental edits after release and keep the approved asset as the source of truth.

06

Printable work orders

Give production a focused summary with item, approval status, file, notes, and timing.

Operational outcomes

A clearer workflow for everyone involved.

ProofLock gives sales, artwork, customers, and production one shared path from the first proof to the final approved file.

★★★★★

“We can see the current proof, the customer decision, and the production-ready file without searching through email threads.”

Emma C. · Custom embroidery store

★★★★★

“Customers know exactly what they are approving, and our team knows exactly which version should go to production.”

Lucas B. · Personalized products merchant

★★★★★

“The activity history gives sales and production one shared record instead of competing screenshots and attachments.”

Sarah M. · Print and signage business

Simple monthly plans

Start with the order volume you need.

Every plan includes the complete approval workflow. Shopify handles subscription approval and billing. No usage overage charges.

Starter

$9.99 / month

14-day free trial

  • 50 proof orders per billing cycle
  • Customer approvals and changes
  • Versions and reminders
  • Production work orders

Pro

$49.99 / month

14-day free trial

  • 500 proof orders per billing cycle
  • Customer approvals and changes
  • Versions and reminders
  • Production work orders

One order uses one slot when its first approval email is prepared. Revisions, reminders, resends, and multiple items in that order do not use additional slots. Unused slots do not roll over.

Security and privacy

Operational clarity without taking data lightly.

ProofLock is designed to use the customer and order data required for the approval workflow and to protect access throughout its lifecycle.

Secure approval links

Signed, expiring links can be rotated when a new approval is sent.

Audit history

Uploads, sends, approvals, requests, and releases are recorded.

Privacy operations

Shopify compliance requests and administrative exports are supported.

Lifecycle cleanup

Uninstall handling removes sessions, stops reminders, and invalidates public links.

Frequently asked

Questions before you proof.

What is artwork proofing for Shopify?

Artwork proofing lets a merchant send a design linked to a Shopify order so the customer can approve it or request changes before production. It is especially useful for embroidered, engraved, printed, and personalized products.

How does ProofLock work with custom orders?

ProofLock connects an order to its artwork versions, sends the customer a secure approval link, records their decision, and prepares the approved file for production.

Can customers request changes?

Yes. The approval page gives customers clear options to approve or describe what needs to change. Your team can upload a new version and resend the link.

Which file formats are supported?

ProofLock supports JPG, JPEG, PNG, WebP, and PDF files up to 20 MB.

Do revisions and reminders use more order slots?

No. One order reserves one slot. Its additional items, versions, reminders, and resends do not consume extra slots.

How is the subscription billed?

Plan selection, approval, and recurring billing are handled directly by Shopify. All three plans include a 14-day free trial.

Do I need to change my Shopify theme?

No storefront theme change is required for the core merchant and customer approval workflow.

Is ProofLock approved for the Shopify App Store?

Yes. ProofLock has been approved by Shopify. The public listing link will be added to this page as soon as it is available.

A cleaner approval process starts here

Make the approved file the file production can trust.

ProofLock has been approved by Shopify. Request the installation link or tell us about the workflow bottleneck your store needs solved next.