by SizeID s.r.o.

Boost your sales with multi-featured size recommender.

5.0 of 5 stars(1 review)

6k Size Charts Ready to Use

SizeID contains 6k+ size charts of 750+ brands, which are ready for size recommendation on your store. You can create more by yourself.

Smart Technology

Easy size recommendations based on height, weight, and age or based on accurate body measurements.

Sell More with Less Work

SizeID improves conversion, reduces returns and costs. Boost your customer satisfaction. Spend your time and money effectively.

About SizeID

What is new?

Reduce returns and costs associated with them and increase the conversion of your e-shop with the new SizeID Advisor SMART! Recommendation based on simple customer data: height, weight and age. Give your customers assurance from shopping and get useful data from purchases. SizeID Analytics offers you a number of data analysis tools that allow you to better optimize and plan. Customize your marketing communication, streamline logistics and achieve higher profits.

Why SizeID?

SizeID provides a unique experience of buying well-fitting clothes and footwear for your customers and at the same time increases your conversion and revenue. We've consistently driven progress and set standards in the world of sizing since 2013. During that time, we have become a proud partner of hundreds of online stores. Today, our solution is available in 7 languages.

All-In-One Solution

You can manage all size charts which fit your product range in one place - in an intuitive and simple SizeID for Business interface. We've improved the interface over the years based on our clients' requirements and feedback. Minimal work effort, that's exactly what SizeID for business delivers to you. Our database contains thousands of size charts from hundreds of well-known global brands. You can find perfectly crafted universal size charts you can instantly use for your product range. You can also add any individual size chart which perfectly fits your needs. Adding size charts has never been easier. At the same time, we are designing our size recommendation system to be as accurate as possible.

No More Hesitation about the Right Size

Don't let your customers deal with uncertain sizes. Let them easily get the recommendation of what will fit them. Get a competitive advantage thanks to SizeID Advisor which works on an advanced algorithm and gives customers certainty while shopping.

  • 2 different types of advisor
  • View of the size chart for the product
  • Additional option of recommendation based on brands customers usually wear
  • Family and friends connection to get recommendation even for them
  • Powerful Size Chart Management
  • Many tools for the analysis of data for better optimization and planning

You can work with any type of Size Chart data but the customer will always get a simple and unified size recommendation. Only SizeID can do it thanks to our powerful algorithms.

  • Fill in body or product measurements
  • Use exact or range of measurements
  • Automatic conversion to the metric system
  • Customize the size chart to clothing in general or to a specific type of clothing (sports leggings, winter jacket, slim fit shirt, etc.)
  • Try the recommendation while setting up the size chart
  • Help at hand during use
  • and much more…

See the app in action

Explore how the app works in an example store.

View example store

Media gallery


Pricing 14-day free trial



  • Up to 20 size charts for your products
  • Up to 300 uses of SizeID Advisor
  • Recommendation based on body measurements



  • Up to 50 size charts for your products
  • Up to 1 000 uses of SizeID Advisor
  • Recommendation based on body measurements



  • Up to 100 size charts for your products
  • Up to 5 000 uses of SizeID Advisor
  • Recommendation based on height, weight, and age



  • Up to 200 size charts for your products
  • Up to 20 000 uses of SizeID Advisor
  • Recommendation based on height, weight, and age

* All charges are billed in USD.
** Recurring charges, including monthly or usage-based charges, are billed every 30 days.

5.0 of 5 stars

The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.

  • 5 of 5 stars
    100% of ratings are 5 stars
  • 4 of 5 stars
    0% of ratings are 4 stars
  • 3 of 5 stars
    0% of ratings are 3 stars
  • 2 of 5 stars
    0% of ratings are 2 stars
  • 1 of 5 stars
    0% of ratings are 1 stars

Most recent reviews

Very good application especially for fashion shops. Recommend customers size. Decreased the percentage of my return due to size. Great customer support