SMS | Apparel Size Recommender

SMS | Apparel Size Recommender

by twinster

Set size charts, get size recommendations, increase conversion

2.3 of 5 stars(12 reviews)

Customers order the right size

With the size finder, your customers will never order the wrong size again. Simple questions help them define what fits them - easy & fast.

Individual size charts

Set up individual size charts & connect them with your individual pieces of clothing.

Increase sales & satisfaction

Reduce your customers insecurities with regard to sizing & increase their happiness and especially your sales.

About SMS | Apparel Size Recommender


Imagine your customer. Sitting at home on the couch with a tablet. Or on the train on the way home from work. Your customer scrolls through the internet and stumbles upon your store. You might even paid expensive ads so he sees you. You got the customers’ attention and he ends up clicking through your products. He wants to order but is unsure about sizing and clicks your sizing offer.

What will he find? An overwhelming size chart with a variety of options, sizes and ways to measure himself?

Do you think he will have a measuring tape with him on the train?

Do you think he will be willing to stand up from the couch to measure himself?

You just lost a potential customer.

Or worse: You won a potential multi-returner. Ordering different sizes of the same Tee only to return you all of them in the worst case.

We help you to prevent such stories and make exactly this customer purchase your products.


Our patented algorithm is the best sizing tool:

  • Customers only answer 4 questions and get the correct size recommendation – easy and fast
  • As soon as your customer used the size finder, the answers are saved for a limited period – when clicking on new products in your store, the correct size will be automatically shown next to the product.
  • The size finder can be used by your customers anywhere, anytime
  • Finding the right size immediately increases the likelihood of a purchase by 85%
  • Over 75% of people are unsure about sizing before ordering
  • Increasing your customers' satisfaction increases the likelihood of them buying again
  • Positive feelings with buying the right size correlate with good word-of-mouth for your store & brand
  • Additional features like "Showing Size Chart" is possible
  • The SMS Apparel Size Recommender is the all-in-one solution for fashion e-commerce stores


  • FREE TRIAL PERIOD. No charges, no fees. Feel free to try!
  • FULL COST CONTROL – we capped the costs so you do not spend too much!
  • EASY INTEGRATION & CUSTOMIZATION – contact our team anytime to help you.
  • UNLIMITED size chart generation & Size Finder usage.

Still not sure if it is the right tool for YOUR shop? Let's have a look at it together. Contact us :)

See the app in action

Explore how the app works in an example store.

View example store

Media gallery


Pricing 5-day free trial



  • 100% FREE
  • 10000 (10k) size recommendations per month
  • Self-installation



0.2$ per order | No usage charges | Maximum total charge that could apply per month 79$ | complete cost transparency

  • Unlimited size recommendations
  • Unlimited size charts generation
  • Charges per order (NOT per usage of wizard)
  • Capped costs
  • E-Mail Support

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

2.3 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
    42% of ratings are 5 stars
  • 4 of 5 stars
    8% 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
    50% of ratings are 1 stars

Most recent reviews


I installed this app 11 days ago and started set up process.
The next day I had a query on the process so I sent a mail to the support tea.
10 days later, absolutely no reply... app deleted...

Developer reply

March 14, 2020

Hi Amaveni! We are sorry to hear that you had troubles with the customer support. We double-checked and unfortunately we have not received an e-mail. As you can see in other reviews, we are very reliable when it comes to supporting our customers, so it must have been a sad coincidence that we did not get yours. We are sorry to see you go and wish you all the best. In case you want to give us a second chance, we are happy to help. Have a nice weekend. Best regards, Sophie.

I am very satisfied with the App. I only use basic functionality - free option. Totally fine. Would recommend it.

Developer reply

October 15, 2019

Hi! Thanks a lot for the kind review. We are very happy that the free version already meets your needs. Should you need help with the upgrade version, let us know. Have a great day. Best regards, Sophie.

Fitjeans Worldwide

Hey guys,

I would strongly advise that you are careful before installing this as a "free" trial if you receive many orders. We were charged 323 charges of $0.2 in the free trial period even when uninstalling within the 30 day trial.

Our company is called FITJEANS, we installed this app as a test to see if we could use this for our store, unfortunately we weren't able to make the size guide appear on our product pages. This is not the reason for our negative review, customer service is very polite and helpful except in the case of refunding us our charges.

The app states it "may" contain charges in the trial period, so please be careful before you install this on your store.


Developer reply

September 24, 2019

Hi! As we have already clarified via e-mail directly with you Kristoffer, we are very sorry that this happened but it was an initial bug in the system which we fixed after you told us. We were trying to refund via shopify but as you have de-installed, we could not do so. We are still eager to provide a refund solution that fits your expectations and lies within the possibilities of the shopify system. We are sorry that after all, you decided to give us a bad review and would like to highlight one more time that the bug was fixed immediately.