LogMyPrice — Price History & Strike-Price Compliance App for Shopify
A Shopify app that records every price change automatically and renders a verifiable 12-month price history chart on the product page. It exists to satisfy strike-price disclosure law — the EU Omnibus Directive, California §17500 and Australian Consumer Law — and to defuse "fake discount" scepticism by letting shoppers verify a promotion themselves. Merchants can upload historical prices to backfill the record and export price logs as evidence. Free to 5 products, then $39 / $69 / $99 monthly with a 60-day trial. Launched 8 May 2026.
LogMyPrice — Price History & Strike-Price Compliance App for Shopify
A Shopify app that records every price change automatically and renders a verifiable 12-month price history chart on the product page. It exists to satisfy strike-price disclosure law — the EU Omnibus Directive, California §17500 and Australian Consumer Law — and to defuse "fake discount" scepticism by letting shoppers verify a promotion themselves. Merchants can upload historical prices to backfill the record and export price logs as evidence. Free to 5 products, then $39 / $69 / $99 monthly with a 60-day trial. Launched 8 May 2026.
The brief
The challenge, and how we approached it
01
The challenge
Omnibus and §17500 require merchants to prove a struck-through price was genuinely charged — but Shopify keeps no durable price history, and prices change through many routes: manual edits, bulk updates, apps, automated repricing, sales. Miss any one path and the record has a hole in it, which is worse than no record when a regulator or plaintiff asks.
02
Our approach
Capture at the data layer, not the UI: log every price change regardless of how it was made — admin edit, bulk operation, third-party app or automation — so the record is complete rather than partial. Historical upload lets merchants backfill the twelve months predating install, which is the difference between a compliant record and a record that starts today. Export makes the log usable as evidence outside the app. On the storefront, the same data renders as a clean product-page chart that turns a legal obligation into a trust signal — the shopper verifies the discount themselves rather than taking the badge on faith. A 60-day trial matches the compliance evaluation cycle, where a merchant needs to see a real month of price movement before judging it. Data access stays narrow: products and theme only.
What we built
Six capabilities shipped for Dana's Bakery
Each one solves a specific part of the brief above.
ZIP-gated shipping
Real-time validation prevents invalid ZIP purchases from entering cart
Drop architecture
Pre-staged inventory with countdown, sold-out gates, and waitlist
Gifting flow
Message cards, recipient addressing, scheduled delivery, gift wrap
Perishable inventory
Daily inventory sync with cold-chain capacity constraints
Drop-day performance
Theme architecture handles 20× traffic spikes without latency
Recurring orders
Holiday subscription flow for repeat gifters
How it ran
10 weeks build, in four stages
Every engagement runs the same four stages, so you always know what happens next and what you owe us at each one.
Stage 1
Audit and scope
We review the current theme, apps and analytics, then write a fixed-scope SOW with named deliverables and a date.
Stage 2
Design and build
Work happens in a dev store on a Git-backed workflow. You get a preview link from week one, not a reveal at the end.
Stage 3
QA and launch
Cross-browser and device QA, redirect map, analytics verification, then a launch window agreed with you rather than dropped on you.
Stage 4
Hypercare
Fourteen to sixty days of included post-launch support while real traffic finds the edge cases.
The outcome
Where Dana's Bakery landed
Conversion is up 2.1× after the PDP rebuild, AOV is up 34% year-over-year thanks to gifting upsells, and drop days are now smooth — zero downtime across 12 drops in the past year.
“
★
★
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Every drop day was a stress event before. Now they're just a Tuesday. The team built us infrastructure we can actually grow on.
FounderGrand-Euro Limited
Tech stack
What this project runs on
The exact platform, services and integrations behind the build.
Commerce platform
Shopify Plus
Launchpad
Shopify Functions
Online Store 2.0
Engineering
Custom ZIP validator
Growth and operations
Klaviyo
ShipBob
More case studies
Other work worth reading
Long-form studies from the same team, with the numbers behind them.
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