二重価格・価格履歴 景表法チェック 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 31, 2026.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for 二重価格・価格履歴 景表法チェック and $9.99/month for PriceProof.
- 二重価格・価格履歴 景表法チェック lists 1 features PriceProof’s listing doesn’t mention, including Policy management.
Head to head
Free
Unlimited
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 featureIn Japan, a struck-through regular price next to a sale price should be backed by recent selling records under the Consumer Affairs Agency guideline (the 8-week rule). The app records your catalog's offered prices from the day you install, checks each dual-price display against the guideline, flags displays your history does not support, and drafts the joint-disclosure stating when and how long the price was…
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.
- 価格履歴を初日から自動記録 — 全カタログの提示価格を、インストール時と価格変更のたびに記録します。
- 8週間ルールでチェック — 消費者庁ガイドラインに照らし、履歴が裏付けない二重価格表示を理由付きで検出。
- 提示価格の履歴のみを使用 — 注文・顧客データは扱いません（通常価格の基準は「販売していた」提示行為）。
- 併記文の自動提案・表示バッジ・監査CSV — 記録した履歴からの事実のみ。バッジとCSVは有料プラン。
- 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 |  二重価格・価格履歴 景表法チェック |  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 | 二重価格・価格履歴 景表法チェック | 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 | 二重価格・価格履歴 景表法チェック | PriceProof |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month | $9.99/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | 2 | 3 |
Listing
| Measure | 二重価格・価格履歴 景表法チェック | PriceProof |
|---|---|---|
| Shopify category rank | #485(ahead) | #488 |
| Shopify App Charts | #16 on Pricing moves in Legal | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 31, 2026 | Jul 20, 2026 |
| Languages | 1 | 1 |
| Developer | PriceProof | PriceProof |
FAQ
二重価格・価格履歴 景表法チェック and PriceProof: common questions
- Is 二重価格・価格履歴 景表法チェック or PriceProof cheaper?
- Both list a free plan. Paid plans start at $9.99/month for 二重価格・価格履歴 景表法チェック 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?
- 二重価格・価格履歴 景表法チェック 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 31, 2026; 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 31, 2026. 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.