SFDIFY
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SFDIFY / Product + Technology Studio

We build software people actually use.

SFDIFY designs and builds AI products, SaaS platforms, mobile apps, websites and digital businesses.

Start a Project Explore Products
app.mycheck.co
MyCheck
Green Card
Apartment move
Newborn paperwork
Citizenship
Green Card application
12 of 19 done
✓Form I-485 signedMar 4
✓Medical exam scheduledMar 9
Upload passport photosToday
Biometrics appointmentApr 2
Employment letterApr 14
Costco
Order #48213
Stand mixer, 5qt$249.00
Cotton throw$34.99
Wireless earbuds$39.99 $29.99
▼ PRICE DROP · SAVE $10.00
Potential savings$10.00
Request adjustment
Content Planner
THIS WEEK
MON5 Signs Your Roof Needs Repair Before WinterPublished
TUEGutter Cleaning: DIY vs. Hiring a Pro in DallasPublished
WEDHow Much Does a New Roof Cost in 2026?Published
THUStorm Damage Checklist for HomeownersScheduled
FRIMetal vs. Asphalt Shingles: Which Lasts Longer?Scheduled
Auto-published
Blog postDAILY
Instagram carouselAUTO
Instagram reelAUTO
Published to
yourbusiness.com/blog
Official technology partners
Meta
MetaTech Provider
Salesforce Partner
SalesforceConsulting Partner
Wix Partner Legend
WixLegend Partner
Meta Tech Provider
Salesforce Partner
Wix Partner Legend
monday.com CRM Certified
Google Cloud Partner
Microsoft Solutions Partner, Data & AI, Azure
PartnerStack Silver Certified Partner
OpenAI
Slack
Products

Products built by SFDIFY.

We build and operate our own software, which changes how we build for clients.

MyCheck
Productivity / Immigration

Stay organized through life's important processes.

Checklists you actually finish, with reminders, shared lists and USCIS case tracking on web, iPhone and Android.

Explore MyCheck
app.mycheck.co
MyCheck
Green Card
Apartment move
Newborn paperwork
Citizenship
Green Card application
12 of 19 done
✓Form I-485 signedMar 4
✓Medical exam scheduledMar 9
Upload passport photosToday
Biometrics appointmentApr 2
Employment letterApr 14
Yolda
Logistics / SaaS

The AI-native TMS for trucking.

The AI-native TMS: dispatch, accounting, safety, hiring and a driver app, from owner-operators to enterprise fleets.

Explore Yolda
yolda.ai
Active loads
24
On-time
96%
Revenue · wk
$48,210
Trucks idle
3
Newark, NJ
Columbus, OH
Truck 14 · ETA 4h 20m
Dispatch
NJ → OH
Truck 14In transit
PA → NY
Truck 07Loading
GA → FL
Truck 22Delivered
CostRefund
Consumer / Savings

Never miss a Costco price drop.

Never miss a Costco price drop: upload receipts and get alerted when a purchase may qualify for a price adjustment.

Explore CostRefund
CostRefund app: scan a Costco receipt to find price dropsCostRefund app: price-drop alert when a purchase is marked down
USTAXX
Fintech / Tax

Tax and business, rebuilt digitally.

Tax preparation and business formation, with a secure client portal and a mobile app in nine languages.

Explore USTAXX
portal.ustaxx.com
2025 Tax Return
In review
W-2 · EmployerPDF · 2 pagesUploaded
1099-NEC · ContractPDF · 1 pageUploaded
Form 8879 e-signatureActionSign now
Mortgage interest 1098—Needed
Estimated refund
$2,340
Federal$1,890
NJ state$450
Your preparer
Reviewing · replies in 1 day
Segeo
AI / Search

Be the business Google and AI recommend.

A useful blog post on your site every day, plus Instagram, on autopilot.

Explore Segeo
app.segeo.net
Content Planner
THIS WEEK
MON5 Signs Your Roof Needs Repair Before WinterPublished
TUEGutter Cleaning: DIY vs. Hiring a Pro in DallasPublished
WEDHow Much Does a New Roof Cost in 2026?Published
THUStorm Damage Checklist for HomeownersScheduled
FRIMetal vs. Asphalt Shingles: Which Lasts Longer?Scheduled
Auto-published
Blog postDAILY
Instagram carouselAUTO
Instagram reelAUTO
Published to
yourbusiness.com/blog
MuChat
Social / Automation

Social smarter, not harder.

Instagram DM automation: auto-reply to comments, story replies and DMs, and turn conversations into customers. Free plan, paid from $14 a month.

Explore MuChat
dashboard.muchat.app
MuChat automations list with live comment, story and DM automations and their click-through rates
Services

What we build.

From first prototype to production systems that thousands of people rely on every day.

AI Products

Agents, copilots and search that ship to real users, with evaluation and guardrails built in from day one.

SaaS Platforms

Multi-tenant products with billing, roles, analytics and the operational tooling behind them.

Mobile Apps

iOS and Android apps that feel native and stay fast.

Web Applications

Dashboards, portals and internal tools built for daily use.

Websites

Marketing sites and commerce that load fast and convert.

Salesforce Consulting Partner

Salesforce

Sales Cloud, Service Cloud, Data Cloud and Agentforce implementations, plus custom Apex, LWC and integrations that connect Salesforce to the rest of your stack.

See Salesforce capabilities
Sales Cloud
Data Cloud
Agentforce
Your stack
Work

Selected work.

Platforms we run ourselves and sites we build for clients, all live today.

Project 01 · SaaS / Logistics

Yolda, the AI-native TMS

One platform that runs a whole trucking company: dispatch, accounting, safety, hiring, benefits and a driver app, from owner-operators to enterprise fleets. Designed, built and operated by SFDIFY.

AI inside
Reads rate cons into loads, watches every CDL and medical-card date, answers questions about your numbers
Modules
Dispatch, accounting, safety, hiring, benefits, driver app
Stack
Go, Next.js, Flutter
Status
Live with carriers across the Midwest
yolda.ai
Active loads
24
On-time
96%
Revenue · wk
$48,210
Trucks idle
3
Newark, NJ
Columbus, OH
Truck 14 · ETA 4h 20m
Dispatch
NJ → OH
Truck 14In transit
PA → NY
Truck 07Loading
GA → FL
Truck 22Delivered
Project 02 · Platform / Fintech

USTAXX portal and app

The secure portal and mobile app behind an IRS-authorized e-file practice. Clients ask USTAXX AI, track deadlines, upload documents and follow their return in nine languages, while tax prep and business formation run through the same account.

Credentials
IRS Authorized e-file provider, 50 states
Clients
1,000+ served
Surfaces
Web portal, iPhone and Android app, staff admin
Stack
Next.js, Flutter, TypeScript
portal.ustaxx.com
2025 Tax Return
In review
W-2 · EmployerPDF · 2 pagesUploaded
1099-NEC · ContractPDF · 1 pageUploaded
Form 8879 e-signatureActionSign now
Mortgage interest 1098—Needed
Estimated refund
$2,340
Federal$1,890
NJ state$450
Your preparer
Reviewing · replies in 1 day
joinpst.com
❯❯PST GLOBAL
CapabilitiesCoverageSafetyDrive with us
847-773-7070
ASSET-BASED CARRIER · NAPERVILLE, IL
Dry van and temperature-controlled capacity across all 48 states.
Active authority, insurance on file, and a dispatcher who answers the phone.
Request a quoteDrive with us
99%
ON-TIME
48
STATES
24/7
DISPATCH
Quote a lane
Origin
Naperville, IL
Destination
Atlanta, GA
Equipment
53' reefer / temp controlled
Send rate request
Project 03 · Website / Logistics

PST Global

The website for an asset-based dry van and reefer carrier in Naperville, Illinois: capabilities, 48-state coverage, safety and driver hiring, with a lane quote form that goes straight to dispatch.

Client
PST Global Freight Transport
Scope
Design, build, SEO and hosting
Features
Rate requests, driver hiring, blog
Built with
Static HTML on Vercel
Project 04 · Consumer / Productivity

MyCheck

A checklist app people actually finish: make your own or let MyCheck draft one, get reminders, complete it with friends, and track a USCIS case at every stage. Designed, built and operated by SFDIFY.

Rating
4.8★ on the App Store
Reach
13 languages, web, iPhone and Android
Immigration
USCIS case tracking and Roadmaps
AI
Save a checklist from ChatGPT, Claude, Grok or Gemini
MyCheck app: USCIS case tracker with real-time status and next stepsMyCheck app: your immigration journey mapped into roadmaps and checklists
CostRefund app: scan a Costco receipt to find price dropsCostRefund app: price-drop alert when a purchase is marked down
Project 05 · Consumer / Savings

CostRefund

Upload Costco receipts and CostRefund watches eligible purchases for price drops, then alerts you in time to request a price adjustment. Designed, built and operated by SFDIFY.

Members
3,800+
Savings found
$18,000+ confirmed
Press
Mentioned in Mashed
Stack
Flutter, Firebase, TypeScript
Project 06 · AI / Marketing

Segeo

SEO and GEO on autopilot for small businesses: a genuinely useful post published to their site every day, built from live search trends and the local market, plus Instagram. Designed, built and operated by SFDIFY.

Output
A blog post every day
Social
Instagram carousels and reels
Pricing
From $89 a month
Stack
Next.js, TypeScript
app.segeo.net
Content Planner
THIS WEEK
MON5 Signs Your Roof Needs Repair Before WinterPublished
TUEGutter Cleaning: DIY vs. Hiring a Pro in DallasPublished
WEDHow Much Does a New Roof Cost in 2026?Published
THUStorm Damage Checklist for HomeownersScheduled
FRIMetal vs. Asphalt Shingles: Which Lasts Longer?Scheduled
Auto-published
Blog postDAILY
Instagram carouselAUTO
Instagram reelAUTO
Published to
yourbusiness.com/blog
Project 07 · Social / Automation

MuChat

Instagram DM automation on the official Instagram API: comment-to-DM funnels, story replies, email capture, a visual Flow Builder and a shared team inbox. Designed, built and operated by SFDIFY.

Channels
Instagram live; Messenger, WhatsApp, TikTok coming
Builder
Flow Builder, templates, sequences, broadcasts
Pricing
Free plan; paid from $14 a month
Stack
Next.js, PocketBase, Instagram Graph API
dashboard.muchat.app
MuChat Flow Builder: a DM automation that asks for an email and branches on the answer
Blog

Ideas from building products.

All articles
FeaturedProduct · 8 min

How We Build Products People Actually Use

The loop we run on every product, from the first checklist in MyCheck to Yolda's dispatch board.
AI · 6 min

Shipping AI features without shipping guesses
Engineering · 5 min

One design system, six products
Salesforce · 7 min

What Agentforce changes for small Salesforce teams
Affiliate Partners

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Agencies, consultants and founders who bring us projects share in what we build together.

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What should we build?

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