Shopify Partner with 4 apps on the App Store

Shopify store and app development company

We design and build Shopify stores, custom apps and checkout extensions for brands that want to grow. The demo on this page runs four apps we built ourselves, used and reviewed by Shopify merchants every week.

4.7 average from 522 Shopify reviews

The autumn edit

Free shipping on orders over $65

Linen overshirt$48.00
Amber candle$24.00
Night cap$32.00

Something new is coming

We’re restocking the autumn edit. Join the list and get first access.

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522merchant reviews on the Shopify App Store
4.7★average rating across all four apps
3 of 4apps carry the Built for Shopify badge
2offices, in Oregon, USA and Gujarat, India

Our own Shopify apps, live on the App Store

The best proof of how we build: four apps merchants install, use and review every week. Each one works on any Online Store 2.0 theme.

AVP ‑ Age Verification Popup icon AVP ‑ Age Verification PopupVape, CBD, alcohol, tobacco and adult stores

Age verification that looks like part of your store

Stop underage visitors before they browse. Ask for a birth date, a checkbox or a simple yes or no, and only show the popup where the law needs it.

  • Date of birth, checkbox or one-tap verification
  • Limit it to certain pages, collections, products or countries
  • Age check banner and inputs on the checkout page
  • Popup text in your shoppers’ language
4.7161 reviews on Shopify Free plan · paid from $3.99/mo
Sale max ‑ Slide Cart Drawer icon Sale max ‑ Slide Cart DrawerFashion, beauty and any store that wants bigger carts

A slide cart that sells the next item for you

Replace the default cart popup with a drawer that shows how close the shopper is to free shipping or a discount, then suggests the product that gets them there.

  • Free shipping and discount progress bar
  • In-cart upsells from Shopify’s recommendations
  • Bundle discounts and a cart countdown timer
  • Order notes, discount codes and express checkout in the drawer
TC Term and Condition Checkbox icon TC Term and Condition CheckboxStores with custom orders, rentals, pre-orders or strict policies

Get clear consent before every order

Add an “I agree to the terms” checkbox to the cart page, cart drawer or product page. Checkout and the PayPal, Shop Pay and Google Pay buttons stay locked until it’s ticked.

  • Works with express checkout buttons
  • Target specific products, collections or tags
  • Five checkbox designs, your own text and links
  • See which orders accepted the terms
Coming soon ‑ cs icon Coming soon ‑ csNew launches, product drops and store rebuilds

A coming soon page that collects buyers

Hide the store while you build or restock, show a countdown to launch day and collect emails into Klaviyo, Mailchimp or Omnisend. It can switch itself off on schedule.

  • Drag-and-drop page builder with templates
  • Countdown timers and animated backgrounds
  • Auto schedule by date, time or every day
  • Email capture that syncs to your email tool
4.599 reviews on Shopify From $3.99/mo · free on dev stores

What merchants say after they install

Real reviews from the Shopify App Store. Most of them are about the same thing: someone on our team fixed it fast.

Sale Max app is excellent, and it has increased my revenue by 10% to 15%. They offer a variety of widgets that provide discounts in multiple ways.
sunshielders Slide Cart Drawer & Upsell
Had a slight issue with configuration and was amazed at how quickly I received help via the webchat.
The Broomhill Farm CoUnited Kingdom Age Verification Popup
Dev was patient, professional, knowledgeable, and very quick to help.
super stamUnited States Terms & Conditions Checkbox
Great experience, I’m using the page as a “Latest Drop” page and it looks great.
Wolf MuscleUnited Kingdom Coming Soon Page
The free shipping threshold bar works really well.
Tanno PadmeMalaysia Slide Cart Drawer & Upsell
Dev Savani took care of business and got me up and running.
shopnathans.comUnited States Age Verification Popup
Excellent support! Needed help finding where terms had been accepted and got it sorted.
CollecTable GamingUnited States Terms & Conditions Checkbox
The app has good functionality that has increased my store’s AOV, and the customer support is excellent.
SG Jewellery Slide Cart Drawer & Upsell
Great app! Create a beautiful launch page or under-construction page within minutes.
A2 VedicIndia Coming Soon Page

Read all 522 reviews on Shopify

Tell us what you want to build

Store projects start at $5,000 and custom apps at $10,000. Share a few details and a developer, not a salesperson, will reply with questions and next steps.

  1. We reply within one business day

    With questions about your products, systems and goals.

  2. You get a written proposal

    Scope, price and timeline, agreed before any work starts.

  3. We build, you review

    Progress goes up on a development store you can click through.

  4. Launch and support

    We go live with you and stay on hand after launch.

Tell us about your project

Step 1 of 2
What do you want to build?

Your budget

Your details

We reply within one business day. No newsletters, no sharing your details.

Questions merchants ask

How much does a custom Shopify store cost?

Our store projects start at $5,000. The final price depends on the number of templates, custom features, apps to integrate and data to migrate. You get a written proposal with the price and timeline before any work starts. More on store development.

How much does it cost to build a custom Shopify app?

Custom app projects start at $10,000. Simple private apps sit near that, while public App Store apps with billing, onboarding and review take more. More on app development.

Which Shopify apps does GM Infotech make?

Four apps on the Shopify App Store: AVP Age Verification Popup, Sale Max Slide Cart Drawer, TC Terms and Conditions Checkbox and Coming Soon cs. Together they have 522 merchant reviews with an average of 4.7 stars.

Are the apps free?

Sale Max and the Terms and Conditions Checkbox are free. Age Verification Popup has a free plan with paid plans from $3.99 a month. Coming Soon starts at $3.99 a month and is free on development and partner stores.

Do I need to know code to set them up?

No. Each app installs from the Shopify App Store and adds itself to your theme through a theme app embed. You switch it on in the theme editor and change text, colors and rules from the app settings.

Will the apps slow down my store?

They load as Shopify theme app extensions, so nothing is pasted into your theme files and uninstalling removes everything cleanly. Three of the four apps carry the Built for Shopify badge, which Shopify only gives to apps that meet its speed and quality checks.

Can you build a custom Shopify app for my store?

Yes. We build private and public Shopify apps, theme customizations and checkout extensions. Tell us what you need and we’ll reply with a plan and a quote.

How do I get help with an app?

Use the chat inside the app, email [email protected] or use the contact form. Most reviews mention how fast our team replied.

Planning a Shopify build?

Stores from $5,000, custom apps from $10,000. Tell us about the project and get a proposal.