Built for Experienced Device Operators
The Operating
System
for Modern
Device
Businesses.
Use STACKS-powered tools to check market conditions, improve pricing decisions, publish cleaner offers, and run a more connected operation.
Built from real industry experience, not generic software assumptions.
Live market-aware pricing
Free STACKS-exclusive CDBL check
Website, workflow, and pricing support
Built for repair, buyback, and resale
IMEI Checks
Inventory Tracking
Marketplace Sales
Sales Sync
Built for Phone Stores
Built for Flippers
The Biggest Wins
What this platform does for electronics stores and phone flippers. Check devices before you buy them, track every unit in inventory, manage marketplace sales, and sync sold devices before double selling creates problems.
IMEI
Check devices before you buy so bad inventory does not enter your system. CDBL, SickW, scan history, and camera-based intake are already built in.
Inventory
Track every phone from intake to sale with status, photos, notes, history, aging alerts, and filtered views your team can actually use.
Marketplace Sales
Manage listings and sold devices without losing track of where each phone is posted. eBay and other marketplace workflows are already in the system.
Sales Sync
When a phone sells, remove it from other channels before duplicate sales create cleanup work. Cross-channel inventory sync and ecommerce sheet sync are already live.
Pricing Engine
Shipping
Analytics
Integrations
See It in Action
Every screen in STACKS is built around how operators actually work. Get where you need to go FAST and have the proper data to back it up.
FREE TEST DRIVE ->
Check before you buy
Run CDBL, SickW, and scan history checks instantly. Know exactly what you are buying before it enters inventory.
Track every device
Full device profiles with status, photos, notes, aging alerts, and lifecycle history from intake to sold.
List, share, and invoice
Generate shareable inventory lists and professional invoices directly from your device data. Clean output your buyers and partners can trust.
USB reader + diagnostics
Connect a device via USB on Mac or Windows and pull storage and diagnostics instantly. Read it, grade it, post it.
How a Device Moves Through STACKS
Check IMEI and device data
Add the device to inventory
Price it with current market data
Post or manage marketplace listings
Sync the sale when it moves
Every device follows the same clean path. No guesswork, no lost inventory, no double sales.
What Problems This Fixes
Bad Buys
Run IMEI and device checks before risky inventory enters the business.
Inventory Chaos
Stop losing track of what came in, what is listed, and what already sold.
Double Selling
Sync sold devices across channels before staff sell the same phone twice.
Too Many Tools
Replace scattered spreadsheets and disconnected systems with one workflow.
Built for the Way You Buy and Sell Devices
Electronics Stores
Handle intake, inventory, listings, and sold sync in one place without bouncing across separate tools all day.
View Ecom Page ->Phone Flippers
Move faster on checks, pricing, and resale workflow when each device needs a clean path from buy to sold.
View Buyback Page ->Repair Shops
Track tickets, parts, and customer devices through every stage of the repair process with full visibility and fewer lost jobs.
View Repair Page ->Pawn Shops
Pawn counters need faster appraisals, cleaner device tracking, and better resale visibility than old guide-based workflows can give them.
View Pawn Page ->Upgrade Your Tech Stack
If you are juggling spreadsheets, manual price updates, marketplace tabs, and disconnected systems, STACKS gives you one place to run the device side of the business.
- IMEI and device checks
- Inventory lifecycle tracking
- Marketplace listing workflows
- Pricing engine
- Shipping and labels
- Analytics and reporting
- Cross-platform apps
Everything Included
Device Checks and Diagnostics
CDBL IMEI verification
SickW IMEI verification
Camera based IMEI scanning
IMEI check history and diagnostics screen
M360 diagnostics integration
USB device reader for Windows and Mac apps
Inventory System
Full device lifecycle tracking from purchase to sale
Device catalog with brands, models, and variants
Automatic device catalog matching
Bulk CSV and Excel inventory import
Repurchase alerts on previously seen devices
Device photo attachments
Custom filtered inventory views
Inventory aging alerts
Inventory dashboard overview
Marketplace Systems
eBay listing creation and management
eBay active, draft, and sold tracking
Automatic eBay delisting when inventory sells elsewhere
eBay communications
BackMarket marketplace integration
Best Buy marketplace integration
Reebelo marketplace integration
Walmart marketplace integration
Cross channel inventory synchronization
Ecommerce Data Sync
Google Sheets ecommerce synchronization
Sheet driven ecommerce workflows
Smart column mapping and data synchronization
Reporting and Analytics
Home metrics dashboard
Revenue by model reporting
Purchase pattern analytics
Historical trend analytics
Google Analytics 4 tracking
Shipping and Labels
EasyPost real time shipping rate lookup
Shipping label generation
Shipping history with tracking records
Shipping label refund processing
ShipStation fulfillment integration
QR code device label generation
Sticker printing
Batch sticker printing
ZPL thermal printer support
CRM and Customer Systems
GoHighLevel CRM integration
GHL contact synchronization
GHL pipeline and opportunity tracking
GHL appointment management
GHL conversations inbox integration
GHL webhook automation
Buyback lead tracking
Repair lead tracking
Customer database with full search
Contact import and address book
Repair System Integrations
RepairDesk synchronization
MyRepairApp synchronization
STACKS OS Platform
STACKS iOS app
STACKS Android app
STACKS MacOS desktop app
STACKS Windows desktop app
Device Pricing Engine
Multi platform device price comparison
Real time resale market pricing engine
Historical device price tracking
Profit calculator with fees, shipping, and costs
Automated daily device price collection
Grade based pricing adjustments
Social and Messaging Channels
Facebook integrations and messaging workflows
Instagram selling and channel visibility
WhatsApp catalog and messaging workflows
Meta channel sync and communication support
Global Systems
Global currency conversion engine
From Real Operators
Operators running real device businesses, in their own words.
"Stacks helped greatly in automating my price sheet and setting up my website. Would not have been able to get my buyback business rolling without him. I would recommend his SEO, website, and price sheet services to anyone."
Nevan
Operator
"Stacks helped me automate my price sheet. JJ was very professional. If you're looking to grow your phone flipping company hit up JJ he definitely will give you some sauce."
Romilio
Operator
"Only been using our buyback site for about a solid week and a half! The site looks and feels absolutely professional! It's a lot harder for people to walk away when they see the site offer the price as opposed to my staff and I just giving them inconsistent prices and overpaying on devices!"
Cameron
Operator
"JJ does great work! I had him rebuild my entire repair shop website. Had to make many customizations to fit my unique needs and he pulled it off. And the site looks great. Definitely recommend him for your website needs!"
Jesse
Operator
"JJ and his team took my visions and made them a reality. After turning our side hustle into a business to buyback used electronics. He quickly got our website up and going! Professional, efficient, and time saving! Everything we could have asked for and more!"
Jacob
Operator
"The team here is amazing they were able to help me rebrand my website and make me look way more Official. The coolest part is talking to someone that actually knows what they're doing. Highly recommended."
Amr
Operator
"Very professional work. Done in a timely manner at fair pricing. Would recommend to any client looking for a well-educated web dev."
Shawn
Operator
"JJ is a great guy and has some awesome tech. Whenever I've had a question he's been quick to respond and explains things in a clear and concise way. Would recommend."
Kevin
Operator
"Stacks.Tech is your ALL-IN-ONE Solution for everything SEO, Marketing, Website Optimization and Building. You cannot go wrong with these guys!"
David
Operator
"Excellent Customer Service and Client Collaboration. In an age where the digital landscape is constantly shifting, finding a reliable technology partner is more crucial than ever. Stacks.tech is making a significant mark in this arena."
Levi
Operator
"JJ does great work! He's helped me with buy back websites and helped me make tweaks to current website when I didn't know what to do! He's an expert and I highly recommend him!"
Alika
Operator
"5 stars for sure. JJ is the man, he does excellent work and answers all your questions and concerns, he also offers the best buyback website out there by far, this is huge for our company."
Gary
Operator
"JJ is awesome! Always a pleasure to work with!"
Kerry
Operator
"JJ is an absolutely amazing person first and an equally amazing web developer! He always comes up with solutions to continue to help our business grow. His communication and availability is outstanding! I refer him to everyone I know who can use his services!"
Joseph
Operator
"JJ has been fantastic with absolutely everything. He's always there for any questions and has made the entire setup process extremely easy. I have had several people who've set up webpages and websites for me in the past - none have ever compared to JJ and his sites or followup. If you're interested in any kind of Cell Phone or Electronics Repair Site or Buy Back Site - I would HIGHLY RECOMMEND."
Andrew
Operator
"They made the process easy and he was very attentive to my wants."
Bassil
Operator
"100% will do business again."
Terrel
Operator
Ready to Run IMEI, Inventory,
Marketplace Sales, and Sales Sync in One System?
Built for electronics stores and phone flippers who need cleaner workflows, faster selling, and fewer mistakes.
Built for serious operators who want cleaner inventory, better checks, and a stronger resale workflow.