SaaS Web Application for SMS Campaigns
Services Provided:
UI/UX Design, Web App Development
Industry:
Marketing
Tech Stack:
React, Node, API Integration, Stripe
Platform:
SaaS Web App
Overview
A startup founder approached us to design and develop, from scratch, a subscription-based SaaS web application that enables retailers to create, manage, and track SMS marketing campaigns from a single platform. The goal was to deliver a simple yet powerful marketing tool that improves customer experience while helping businesses increase retention, customer lifetime value (LTV), and net promoter score (NPS).
Buddy
The Buddy mark pairs bold typography with a single blue accent — a minimal identity built for digital-first contexts, equally at home on a landing page, SMS notification, or app icon.
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Primary Color
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Backgrounds
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Secondary Color
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Fonts
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The Engineering Challenge
Challenge:
An all-in-one SMS marketing solution
- Automate personalized campaigns
- Manage contacts and opt-ins
- Provide real-time campaign performance insights
- Offer flexible payment options for small and medium-sized businesses
The platform also had to be intuitive for multiple user roles while remaining scalable and data-driven.
Solution:
Custom-built for end-to-end control
- Delivered a custom mobile web application for launching tailored SMS campaigns end to end
- Enabled full analytics and results tracking at the campaign level
- Built advanced automation and segmentation tools for personalized messaging at scale
- Gave retailers complete control over customer interactions and marketing workflows
Results
Built for perfomance
Flexible payment models
Monthly subscriptions and pay-as-you-go SMS pricing
Contact management
Custom opt-in surveys, keyword enrollment, and contact syncing
Campaign analytics
SMS volume, click-through rate, conversion rate, and opt-ins
Advanced segmentation
Targeting based on purchase history, behavior, and spend
Automation
Smart sending, scheduled campaigns, holidays, and birthday messages
Custom messaging
Dynamic tags, images, short URLs, and message previews
Tech Stack
Retailer Portal
Marketing and sales command center
Retailer can study marketing and sales stats of run campaigns using a rich filtering system. He is able to create, schedule, automate and manage personalized SMS campaigns. Same to campaign management, retailer has extensive control over sign up forms used to enroll contacts.
Campaign Management
Targeted sends with surgical precision
Retailers compose campaigns in two modes: Marketing and Product. The builder handles recipient selection via Contact Filters — segmenting by keyword, gender, age range, state, veteran status, or custom product preferences. Dynamic token insertion personalises every message at send time.
CRM Database
Rich contact profiles for precise targeting
We developed functionality for managing customer contacts that allows administrators and retailers to create, edit, and enrich detailed profiles with custom fields, preferences, keywords, and opt-in status—enabling accurate audience segmentation for SMS campaigns.
Message Flow
The engine behind conversational commerce
We developed functionality for building automated SMS message flows that lets retailers visually create and manage multi-step customer conversations. The Message Flow editor supports dynamic fields for names, products, prices, and orders, enabling personalized messaging at scale. It also includes branching logic based on customer replies and real-time previews for scenarios like order confirmation, out-of-stock messages, and purchase surveys.
Sign-Up & Onboarding
Three paths into the subscriber list
Retailers grow their subscriber list via a customisable web sign-up form with QR code and embed widget, a keyword-based opt-in through Twilio number with configurable auto-reply, or a popup builder for their website. The survey builder captures rich profile data at sign-up — birthday, gender, custom questions — which powers audience segmentation in campaigns.
From catalog to fulfilment, inside the platform
Buddy operates as a lightweight e-commerce engine. Retailers manage their full product catalog with SKU and inventory tracking, launch product-specific SMS campaigns, and fulfil orders — all from within the same dashboard.
Built End to End
Fulfilment tracked to the cent
Each order detail view shows the full product breakdown, shipping cost, state and county-level tax calculation, and the net payout to the retailer after Buddy’s transaction fee. Mark as fulfilled directly from the view.
Administrator Portal
Administrator can view retailers stats with a comprehensive filtering system, manage retailer accounts, manage referral requests and payouts for special product campaigns. Furthermore, the administrator has control over default campaign templates.
Account Settings & Integrations
Each retailer manages their subscription directly from their account — upgrading plans, connecting Stripe for payments, with Shopify and ShipStation available as upcoming integrations. Tax nexus configuration allows state-by-state and physical nexus settings for accurate order tax calculation.
Account Manager
The operator’s control panel. Create, activate, and monitor every retailer account with real-time usage data and plan management.
Template Manager
Marketing Website
We also designed and published a marketing website to present the SaaS solution, clearly communicate its value proposition, and support user acquisition. The website allows businesses to explore features, choose a subscription plan, create an account, and securely log in to the platform—providing a seamless transition from product discovery to onboarding.
What We Achieved Together
We built a scalable, subscription-based SaaS platform that enables retailers to launch, manage, and automate SMS campaigns from one place.
Scalable Foundation
A smooth, user-friendly experience was at the heart of this project — making complex SMS marketing simple and intuitive for retailers.
Seamless UX
We delivered powerful campaign analytics and insights, helping businesses measure performance, optimize messaging, and improve conversions.
Deep Analytics
We introduced flexible pricing models, including pay-as-you-go, lowering the barrier to entry for small and medium-sized retailers.
Flexible Pricing
Together, we created a robust marketing tool that helps retailers increase customer engagement, retention, LTV, and NPS.
Lasting Impact
Client Feedback
Web Design Sun was able to create a platform never seen before — we’re very thrilled about it.
Innovate with us
Our creative solutions have helped clients raise $100+ mln and expand their reach.
