Monthly Feature Development
Net-new features scoped, built, and shipped every month — from UI improvements and new pages to API integrations and dashboard modules. Your product keeps evolving without the overhead of managing a dev team.
Starting from ₹18,000
Growth & Maintenance Retainer
## What the Retainer Includes The Growth & Maintenance Retainer is a monthly engagement that bundles development, monitoring, security, and support into a single predictable cost. Each month, you get a fixed allocation of dedicated dev hours that can be used for feature development, bug fixes, performance optimisation, content updates, automation maintenance, or any technical work your business needs. ## How It Differs from Project Work Project engagements have a defined scope, timeline, and deliverable. A retainer is ongoing — it gives you continuous access to our engineering team without having to scope, negotiate, and kick off a new project every time you need something built or fixed. Feature requests go into a backlog, we prioritise together in monthly planning, and work ships in sprints. There is no re-onboarding, no context loss, and no delays waiting for SOWs. ## Who It Is For This retainer is built for two types of businesses. First, existing clients who have already launched a Shopify store, web application, or automation system with us and want ongoing care, iteration, and growth support. Second, businesses with existing Shopify stores, Next.js apps, or n8n/Make.com workflows built by someone else who need a reliable technical partner to take over maintenance, fix accumulated tech debt, and drive continuous improvement. ## Monthly Rhythm Every retainer follows a consistent monthly cycle: a planning call at the start of the month to align on priorities, sprint execution through the month with async updates via Slack, and a review session at month-end where we demo completed work, share a transparent hour log, and plan ahead for the next cycle. You always know what was done, how long it took, and what is coming next. ## SLA-Backed Support Retainer clients receive priority response times backed by a formal SLA. Critical production issues are acknowledged within 2 hours and resolved within 8 hours. Standard requests are picked up within 1 business day. You are never waiting in a queue behind project clients — retainer work is always prioritised.
- Predictable monthly cost with no surprise invoices or scope-change fees
- Zero hiring overhead — no recruitment, onboarding, or idle bench costs
- Proactive issue detection — we find and fix problems before they become incidents
- Continuous improvement — your product ships new features and optimisations every month
- Dedicated engineering attention from a team that already knows your codebase and business
50+ Clients Served
4+ Years in Business
UK/AUS/US Overlap
Last updated 2 April 2026
What we build
What does Growth & Maintenance Retainer include?
Performance Monitoring & Optimisation
Continuous tracking of Core Web Vitals, Lighthouse scores, server response times, and uptime. We proactively identify and fix performance regressions before they impact your users or search rankings.
Security Patches & Updates
Dependency updates, framework patches, SSL renewals, and vulnerability remediation applied on a regular schedule. We follow OWASP best practices and ensure your stack stays secure and compliant.
Automation Workflow Maintenance
Ongoing monitoring, debugging, and optimisation of your n8n, Make.com, and Zapier workflows. We catch silent failures, improve execution times, and extend automations as your business processes evolve.
Dedicated Dev Hours
A fixed monthly allocation of engineering hours reserved exclusively for your business. Use them for bug fixes, content updates, UX tweaks, data migrations, or any technical task — hours roll over clarity provided at month-end.
Free Download: 3 Detailed Case Studies with Real Numbers
FloraSoul (+41% mobile conversion), Baby Forest (₹4.2L launch month), Zevarly (+55% session duration) — full breakdowns inside.
Service Overview
Everything you need to know about Growth & Maintenance Retainer
Think of us as your outsourced tech partner — not an IT helpdesk you call when something breaks. The Growth & Maintenance Retainer is designed for businesses that have already launched a Shopify store, web application, or automation stack and now need a reliable engineering team to keep it running, improving, and scaling.
Every month, our Kolkata-based team runs a structured sprint cycle on your behalf. We start with a planning session where you share priorities — new feature requests, performance bottlenecks, content updates, UX improvements, or automation tweaks. We scope the work, execute it in focused sprints, and deliver a review at month-end with a transparent hour log and a demo of everything shipped.
What's included
Everything you need to succeed with Growth & Maintenance Retainer
Always-On Engineering Team
A dedicated team of engineers allocated to your business every month. No recruitment, no onboarding, no bench costs. You get senior developers who already know your stack, your codebase, and your business context — ready to ship from day one.
Proactive Monitoring & Maintenance
Continuous uptime monitoring, Core Web Vitals tracking, error alerting, and dependency scanning. We detect and resolve issues before they impact your users — not after your customers report them.
Monthly Feature Sprints
Every month includes a structured sprint cycle — planning, execution, review, and demo. Your product ships new features, improvements, and optimisations on a predictable cadence, keeping you ahead of competitors.
Transparent Reporting & SLA
Detailed hour logs, sprint reports, performance dashboards, and contractual SLA-backed response times. You always know what was built, how long it took, and what is coming next. Full accountability, zero guesswork.
Why choose us
Why businesses trust us for Growth & Maintenance Retainer
0
Days Ramp-Up for Existing Clients
We Built It, So We Know It Best
Most retainer clients launched their product with us. We wrote the codebase, configured the infrastructure, and understand the business logic inside out. There is no ramp-up time, no knowledge transfer overhead, and no misunderstandings about how things work. Even if we did not build your original system, our onboarding audit gets us to full context within the first sprint.
0hr
Critical Issue Response
SLA-Backed Response Times
Retainer clients are never waiting in a queue. Critical production issues are acknowledged within 2 hours and resolved within 8 hours. Standard requests are picked up within 1 business day. Our SLA is contractual — not aspirational.
0%
Demo Coverage
Monthly Sprint Demos, Not Just Maintenance
This is not a break-fix contract. Every month ends with a live demo of completed work — new features, performance improvements, resolved issues, and automation upgrades. You see exactly what was built, not just a list of hours logged.
Full
Visibility
Transparent Hour Tracking
Every retainer client gets a detailed monthly hour log broken down by task, ticket, and engineer. You always know where your hours went, what was delivered, and how the allocation was spent. No black-box billing.
Our tech stack
Technologies we use for Growth & Maintenance Retainer
Frontend
Next.js
React
TypeScript
Tailwind CSS
Shopify / Liquid
Flutter
Backend
Node.js
NestJS
Directus
Database
PostgreSQL
DevOps
AWS (EC2, S3, CloudFront)
Vercel
Docker
Nginx
Tools
n8n
Make.com
How it works
Our process — start to finish
Onboarding & Audit
We start with a full technical audit of your existing systems — codebase, infrastructure, automation workflows, performance baselines, and security posture. For existing clients, this is a quick refresh. For new clients, this is a deep-dive that gives us complete context within the first week. We document everything and set up monitoring, alerting, and access.
Monthly Planning
At the start of every month, we hold a planning call to align on priorities. You share feature requests, pain points, and business goals. We review the backlog, estimate effort, and agree on what gets shipped this cycle. The outcome is a clear sprint plan with deliverables, owners, and timelines.
Sprint Execution
Our Kolkata-based engineering team executes the sprint plan through the month. You get async updates via Slack, access to a live staging environment for review, and the ability to provide feedback in real time. We handle development, testing, code review, and deployment — you just review and approve.
Review & Report
At month-end, we deliver a live demo of all completed work, a detailed hour log, a performance and uptime report, and a forward-looking plan for the next cycle. This is your opportunity to evaluate ROI, adjust priorities, and ensure the retainer is delivering measurable value to your business.
Typical timeline: 8 weeks
Client stories
What our clients say
Honest words from people who've been through the process. No stock photos, no made-up companies.
“When two freelancers ran away with our money, we had lost all trust in agencies. Innovatrix didn't just rebuild our store — they rebuilt our confidence. Four years later, we've gone from one lakh to over one crore in revenue. They're not our vendor, they're our technology partner.”
G
Garima Ahuja
Co-founder, FloraSoul India
“We had jewellery but no digital presence. Innovatrix gave us a Shopify store that actually feels like walking into a jewellery showroom. The tiered discounts and WhatsApp integration alone doubled our repeat customers. We went from zero online orders to processing 50+ orders a day within four months.”
M
Mukesh Sethiya
Founder, Zevarly
“Before this system, our team was glued to their phones all day just answering the same questions over and over. Now those hours are back, and our customers actually get faster responses than when we were doing it manually. Rishabh and his team understood our operations deeply before writing a single line of code.”
A
Aman Bahri
Director, Bandbox Group
Questions answered
Common questions about Growth & Maintenance Retainer
Certified PartnersRecognised by the platforms
Recognised by the platforms
you already trust.
Government registrations, platform partnerships, and ecosystem credentials that verify the operating standards behind every engagement.
Payment Options
Pay the way that works for you
We accept every major payment method globally — from cards and PayPal to international bank transfers, India-specific UPI, and direct NEFT/RTGS.
Stripe
Cards & digital wallets
Visa · Mastercard · Apple Pay · Google Pay · AMEX
PayPal
Global online payments
PayPal balance · Linked cards · Bank accounts
Wise
International bank transfer
USD · GBP · EUR · AUD · CAD · SGD · AED + 40 more
Razorpay
India — all local methods
UPI · Net Banking · Cards · Wallets · EMI
Bank Transfer
Direct NEFT / RTGS transfer
All Indian banks · Same-day RTGS · NEFT · IMPS
All transactions are processed securely. We never store card details.
Free Download: 3 Detailed Case Studies with Real Numbers
FloraSoul (+41% mobile conversion), Baby Forest (₹4.2L launch month), Zevarly (+55% session duration) — full breakdowns inside.
Get started
Ready to talk about your project?
Whether you have a clear brief or an idea on a napkin, we'd love to hear from you. Most projects start with a 30-minute call — no pressure, no sales pitch.
No upfront commitmentResponse within 24 hoursFixed-price quotes