RMS Size Helper is the #128 ranked product comparison app on Shopify, with a free plan available, as of July 8, 2026.
RMS Size Helper is a Shopify App Store app by RMS, launched May 2026.
AppRanks data: RMS Size Helper ranks #128 in Product comparison on Shopify App Store, placing it in the top 63% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
RMS Size Helper is a newly-listed Shopify app with a limited review volume. It is listed in the Product comparison category on Shopify App Store, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. no published reviews yet means feature claims are unverified by the wider merchant base. Without a published review base, the only fit-signal available is the developer's own documentation plus the marketplace's listing-quality audit (linked below). The free tier lets you trial the entry feature set without committing a payment method. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Shopify App Store listing.
Pros
- +Free tier available — no card required to evaluate
- +Published by RMS — established developer track record
Cons
- −No public reviews yet — fit and reliability are unverified
Looking to switch from RMS Size Helper?
See RMS Size Helper's alternatives ranked by audit score, rating, and review velocity.
About RMS Size Helper
How RMS Size Helper works
Reduce returns and enable customer confidence with RMS Size Helper. Create custom size charts for tops and bottoms. Our research-driven, smart "Find My Size" survey guides shoppers to their perfect fit using their measurements, body shape, and fit preferences.
Easy to setup, RMS Size Helper requires no coding and works with any Shopify theme. With detailed analytics, monitor all products that the size chart and size helper was checked for.
Screenshots
Key features
- Smart "Find My Size" survey guides customers to their perfect fit.
- Create custom size templates for tops and bottoms with international sizes.
- Choose between "Size Chart + Size Helper" or "Size Chart Only" size guides.
- Import and export size charts as csv to quickly setup your store.
- Track size guide opens, recommendations made, and conversion rates.
Standardized capabilities
Normalized capabilities detected for this app, comparable across the marketplace.
- 30-Day AnalyticsAccess and analyze your store's performance over the last 30 days.
- Font and Color CustomizationCustomize the font style and color to match your brand identity.Common
- Mobile Responsive DesignEnsure your site is mobile-friendly and adapts to all devices.table-stakes
- Priority SupportReceive prioritized assistance to resolve issues faster.Common
- Product and Checkout PageManage and customize your product and checkout pages for better user experience.table-stakes
- Size ChartsProvide customers with detailed size charts to aid in product selection.table-stakes
- Table Layout OptionsChoose from various table layouts for product display.Common
- Template ManagementCreate and manage templates for consistent branding and messaging.Common
- Automatic Unit ConversionAutomatically convert units for a seamless shopping experience.Common
- Detailed AnalyticsAccess detailed analytics for a thorough understanding of your data.
Pricing plans
Free
|
Growth9/month
|
Most popular Pro19/month
|
Enterprise49/month
|
Category rankings
As of Jul 8, 2026- Product comparison#128of 204Top 63%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Keyword rankings
RMS Size Helper ranks for 2 keywords across Shopify App Store. Here are the top 2:
- Rank #190
- Rank #190
Competitors & alternatives
RMS Size Helperdoesn't have curated competitor matchups yet. Other tracked product comparison apps on Shopify:
Frequently asked questions
What is RMS Size Helper?
RMS Size Helper is an app for Shopify. It is published on Shopify App Store and tracked daily by AppRanks, and it has been listed on the marketplace since 2026. It is listed under the Product comparison category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space. Developed by RMS.
Is RMS Size Helper free?
RMS Size Helper offers a free plan that merchants can install on Shopify without entering payment details. Paid tiers Growth, Pro, Enterprise unlock additional features for teams that outgrow the free plan. Pricing details on this page are mirrored from the live Shopify listing and refresh on each scrape cycle.
Who uses RMS Size Helper?
RMS Size Helper is actively installed across Shopify stores tracked by AppRanks. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Product comparison category on Shopify.
Where does RMS Size Helper rank on Shopify?
RMS Size Helper currently sits at position #128 in the Product comparison category on Shopify. That places it in the top 63% of 204 apps tracked in the same category. Category positions are read from the live marketplace ranking and refresh on each scrape, so the number you see here reflects the most recent crawl rather than a long-running average.