FlatFit Size Chart & Guide vs Tapeline: Size Charts
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 16, 2026 for FlatFit Size Chart & Guide, Nov 6, 2026 for Tapeline.
The short answer
- Both list a free plan. Paid plans start at $7/month for FlatFit Size Chart & Guide and $5/month for Tapeline.
Head to head
Free
- · 1 size chart on all products
- · Paste or CSV import
- · cm/inch toggle and templates
Flat
- · Find my size for shoppers
- · Product targeting
- · Translations, 20+ languages
- · Unlimited charts and orders
Free
- · 1 size chart
- · Import from ESC, Kiwi or CSV
- · Inch/cm switch for shoppers
- · Pop-up button or inline table
Pro
- · Everything in Free
- · No fees based on orders or traffic
- · Unlimited size charts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShow shoppers a size chart on product pages. Start from a template, or switch from your current app by pasting its table or a CSV. Choose where each chart appears: products, collections, tags, vendors or product types. Shoppers switch between cm and inches, read the chart in their language, and use Find my size to get a size from their measurements.
Tapeline adds clean, mobile-friendly size charts to your product pages so shoppers pick the right size and you get fewer returns. Build a chart as a simple table or paste it from a spreadsheet, then choose where it shows: by product, collection, tag, vendor or product type. New products get the right chart automatically. Show a button that opens a pop-up, or an inline table.
- Unlimited size charts across your whole catalog
- Assign charts by product, collection, tag, vendor or product type
- cm and inch toggle, with inches shown first to US shoppers
- Translate chart headings and sizes into your store languages
- Pop-up button or inline table that matches your theme
- Inch/cm switch shoppers can use, with size labels left as they are
- Assign charts by product, collection, tag, vendor or product type
- One-click import from ESC Size Charts and Kiwi Size Chart, or paste a CSV
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 |  FlatFit Size Chart & Guide | |
|---|---|---|
| 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 | FlatFit Size Chart & Guide | |
|---|---|---|
| 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 | FlatFit Size Chart & Guide | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $7/month | $5/month(ahead) |
| Longest free trial | 14 days | Not listed |
| Plans listed | 2 | 2 |
Listing
| Measure | FlatFit Size Chart & Guide | |
|---|---|---|
| Shopify category rank | #415 | Not enough data |
| Shopify App Charts | #11 on Pricing moves in Product display - Other | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Oct 12, 2026 | Nov 5, 2026 |
| Languages | 1 | 1 |
| Developer | FlatFit Apps | Streamline Code |
FAQ
FlatFit Size Chart & Guide and Tapeline: common questions
- Is FlatFit Size Chart & Guide or Tapeline cheaper?
- Both list a free plan. Paid plans start at $7/month for FlatFit Size Chart & Guide and $5/month for Tapeline. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- 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 16, 2026 for FlatFit Size Chart & Guide, Nov 6, 2026 for Tapeline; 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 16, 2026 for FlatFit Size Chart & Guide, Nov 6, 2026 for Tapeline. 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.