Powerful Shopify apps for your store
Discover our suite of apps designed to extend Shopify POS functionality and help you sell more, faster.
Trusted by merchants worldwide • Free trials available • No credit card required
Our apps
Choose the right tools to power your business. Each app is designed to solve specific challenges and help you sell more effectively.
Atomic POS Variable Price
Sell variable priced products in point of sale (POS)
Sell variable priced products in point of sale (POS)
- Set custom prices at point of sale
- Perfect for markets, fairs, and negotiated pricing
- Real-time cart updates
From $10/month
Free trial available • $2 per additional POS location per month
Measura: Sell by Weight & More
Sell by weight, length, area, and volume in POS & Online Store
Sell by weight, length, area, and volume in POS & Online Store
- Sell by weight, length, area, volume, or time
- Works in Online Store and Shopify POS
- Automatic price calculation
From $9.99/month
Free trial available
Atomic POS Custom Fields
Add fields to collect extra order details in point of sale
Add fields to collect extra order details in point of sale
- Capture custom information at checkout
- Works in POS and Online Store
- Flexible field types
$5/month
Free trial available • $2 per additional POS location per month
Surchi: Fees & Surcharges
Apply fees and surcharges in POS to orders or products
Apply fees and surcharges in POS to orders or products
- Add service fees and surcharges
- Automatic or manual fee application
- Full tax control
From $7.99/month
Free trial available
Perfect for every business type
Whether you're selling by weight, need flexible pricing, or want to capture custom information, we have an app for you.
Bulk & weight-based
Perfect for stores selling by weight, length, or volume. Ideal for bulk food, fabric, and materials.
Flexible pricing
Great for farmers markets, craft fairs, and businesses that need to negotiate prices at the point of sale.
Custom information
Capture special instructions, customizations, and variable data that standard Shopify can't handle.
Additional fees
Add service fees, delivery charges, and surcharges to orders automatically or manually.
What merchants are saying
See more reviews on our individual app pages
The support team has been incredibly helpful throughout the setup process — quick to respond, patient with questions, and really made sure everything was configured properly for our business.
The Vegan PantryThey went above and beyond to adapt the app exactly to our workflow. Demonstrated support speed like I've never seen before—responding and resolving every issue almost instantly.
Königreich der StoffeThe customer service has been spectacular, and all of the (very tiny) issues were taken care of with so much attention. They clearly want their app to work well, and that they care about it being as good as possible.
Fiddlehead Artisan Supply
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Frequently asked questions
Have questions? We're here to help you find the right solution.
Frequently asked questions
Which app do I need?
It depends on your business needs. Measura is for selling by measurement (weight, length, etc.). Variable Price is for custom pricing at point of sale. Custom Fields captures additional information at checkout. Surchi adds fees and surcharges. You can use one or multiple apps together—they're designed to work independently or in combination.
Can I use multiple apps together?
Yes! All our apps are designed to work together seamlessly. Many merchants use 2-3 apps to cover different aspects of their business. For example, you might use Measura for bulk sales and Custom Fields for capturing special instructions.
How do I get started?
Browse our apps above to find the one that fits your needs. Click 'View Details' to learn more, or 'Start Free Trial' to install directly from the Shopify App Store. All apps offer free trials with no credit card required.
What if I need help?
We offer email support for all our apps. Our support team is known for quick response times and helpful guidance. You can contact us at support@atomicpos.com or use the contact form on individual app pages.
Ready to get started?
Explore our apps and start your free trial today. No credit card required.