Phantom Markdown ‑ EU Omnibus vs PriceProof: Price Proof
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for Phantom Markdown, Oct 31, 2026 for PriceProof.
The short answer
- Both list a free plan. Paid plans start at $6.99/month for Phantom Markdown and $9.99/month for PriceProof.
- Phantom Markdown lists 1 features PriceProof’s listing doesn’t mention, including Policy management.
Head to head
Free
- · Available on development store only
- · Compare-at audit log
- · Entire-store automation
- · Manual & scheduled runs
- · Price & metafield audit log
Pro
- · 7-day free trial
- · Entire-store automation
- · Manual & scheduled runs
- · Price & metafield audit log
Free
- · 1 market: UK, Australia, or Canada
- · First 50 products we track assessed
Growth
- · Unlimited products, 3 markets
Pro
- · Everything in Growth
- · Verified badge + audit CSV export
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featurePhantom Markdown shows the reference price the EU Omnibus Directive (Article 6a) requires the lowest price you offered over the last 30 days automatically. It records your prices every day, works out the 30-day low for each product, and shows it as the crossed-out compare-at "was" price, saves it to a metafield for your theme, or both. If a compare-at price is set too high, it lowers it to the correct amount.
When you advertise a strikethrough "was" price in the UK, Australia or Canada, regulators expect you to show the price history behind it. PriceProof records your offered-price history from install, checks each was-price claim against a published benchmark per market, and flags claims your history does not support, with the reason in plain language.
- Auto-updates compare-at prices using real sales data — fully law-compliant.
- Detects the lowest past compareAt to set a legally valid reference.
- Protects your reference across deepening discount campaigns automatically.
- Automate by specific products or your entire store in one click.
- Records your price history automatically from the day you install
- Checks was-price claims against UK, Australian and Canadian rules
- Flags claims your records can't back — never fabricates a pass
- Storefront 'verified' badge on products your history supports
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Phantom Markdown |  PriceProof |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Phantom Markdown | PriceProof |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Phantom Markdown | PriceProof |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $6.99/month(ahead) | $9.99/month |
| Longest free trial | 7 days | 14 days |
| Plans listed | 2 | 3 |
Listing
| Measure | Phantom Markdown | PriceProof |
|---|---|---|
| Shopify category rank | #335(ahead) | #488 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 15, 2026 | Jul 20, 2026 |
| Languages | 1 | 1 |
| Developer | Seventh Triangle Consulting | PriceProof |
FAQ
Phantom Markdown and PriceProof: common questions
- Is Phantom Markdown or PriceProof cheaper?
- Both list a free plan. Paid plans start at $6.99/month for Phantom Markdown and $9.99/month for PriceProof. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Phantom Markdown lists 1 the others don’t mention, such as Policy management. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 14, 2026 for Phantom Markdown, Oct 31, 2026 for PriceProof; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 14, 2026 for Phantom Markdown, Oct 31, 2026 for PriceProof. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.