Custom Software Built to Grow Your Business

From websites and web apps to automation, AI, and custom backends — we design, build, and ship software that helps your business run better and scale faster. 100+ projects delivered across 20+ countries.

Web & mobile app development
Automation & AI integrations
APIs, backends & cloud infrastructure
RS

RetentionStack Team

Online

Hi! I want to know about your services

Hey there! We build custom software — websites, apps, automation, and AI. What are you working on?

A few things we do:

Web AppsAutomationAI Integrations

I need a web app + API

Perfect! We've shipped 100+ projects like that. Want a free quote and timeline?

4.9★

Client Rating

100+

Projects Shipped

100+

Projects Delivered

20+

Countries Served

4.9★

Avg. Rating

85

5-Star Reviews

Trusted by industry leaders

Powering Growth for 100+ Businesses

100+

Active Clients

15+

Industries

2+

Years Growing

What We Do

Software Development That Works

Everything from custom apps and APIs to automation and AI — built to solve real business problems

Core Service

Custom Software Development

From idea to launch, we design and build the software your business needs — web platforms, mobile apps, dashboards, and internal tools. Scalable, maintainable, and built to fit exactly how you work.

Custom web & mobile applications
APIs, backends & database design
Third-party & payment integrations
Cloud deployment & DevOps
See Pricing
100+Projects Shipped
4.9★Client Rating
20+Countries Served

Go Further

Additional services to extend your build

AI-Powered Features

Add GPT-4 or Claude-powered chat, search, and automation to your product.

Learn more

Automation & Bots

Automate workflows and build bots for WhatsApp, Telegram, Discord, and Slack.

Learn more

Websites & Landing Pages

Fast, conversion-focused websites that turn visitors into customers.

Learn more
Pricing

Flexible Pricing for Every Project

Whether it's a one-off build or an ongoing partnership, we scope it clearly and price it upfront. No surprises.

Most Popular

Project Build

One-time build for websites, web apps & automation

Starting at $1,500
  • Custom design & development
  • Web app, website, or automation build
  • API & third-party integrations
  • Responsive & mobile-optimized
  • Testing, QA & deployment
  • Documentation & handover
  • Post-launch support included
Get Custom Quote
Premium

Retainer & Scale

Ongoing development & support for growing products

Custom
  • Everything in Project Build
  • Dedicated developer & account manager
  • Custom integrations & API development
  • New features & continuous improvements
  • Priority support & fast turnaround
  • Cloud, DevOps & maintenance
  • Monthly strategy sessions
  • Analytics & performance monitoring
Get Custom Quote

Need Something Else?

One-off services for quick fixes and custom builds

🔧

Bug Fixes & Quick Updates

$149

Fast fixes for small issues in your existing projects. Perfect for when you need something working ASAP without a full rebuild.

Larger projects require custom quote

⚙️

API Development & Backend

Custom

Robust backend systems and API integrations to power your apps and automation workflows. CRM connections, payment processing, and more.

🤖

Chatbots & Messaging Bots

Custom

Professional bots for WhatsApp, Telegram, Discord, and Slack communities with custom commands and integrations.

📋

Strategy Consultation

$50

Get expert guidance on automation strategy, tech stack selection, and implementation planning. Perfect for validating your ideas before building.

Not sure which package to pick?

Book a free consultation. We'll scope your project and recommend the best plan.

Book a Free Consultation
Success Stories

85 Five-Star Reviews from Real Clients

See what clients say about working with us - verified reviews from Fiverr

"Aaron did a fantastic job and went above and beyond to make my vision of a crypto bot a reality. I would highly recommend his services as he is an exceptional coder."

API & Integrations
JA

jacobsmitu

South Africa

"Awesome job 🚀"

API & Integrations
HA

harveymintz

United States

"incredible job. Great professional"

API & Integrations
WA

waduwad

Spain

"Perfekte Arbeit und super schnelle Lieferung 📦"

API & Integrations
SP

sparfuchs777

Germany

"I almost want to give bad review so he is ONLY MINE. He is AMAZING. God bless him."

API & Integrations
AM

amafive

United States

"Good contact, gladly again!"

Rule Based Chatbots
LE

lepinal

Germany

"Working with Aaron Jevil was a PLEASURE! His expertise in web development truly EXCEEDED my expectations, and the detailed documentation was a great bonus. Aaron's politeness and proactive communication made the process smooth and efficient. 👍"

Custom Websites
RP

rpatres

Czech Republic

"Always fun to work with Aaron. He's very responsive, polite and works to the requirements. Delivery questions and advice was very helpful to integrate my other external components. Will be working with him in the future for sure. Thanks Aaron"

API & Integrations
TA

tangosierra

Singapore

"Perfect, will be using again 100%. About to put in for another order for a complete project restructure to really streamline the work."

API & Integrations
CO

connorhallam602

United Kingdom

"Aaron Jevil went above and beyond in every aspect of the project! His professionalism and attention to detail exceeded my expectations, and his deep understanding and quick responsiveness made working with him a pleasure. Excellent assistance with OTP integration - truly a fantastic specialist! 👏"

API & Integrations
TE

terson1k

Poland

"Working with Aaron was a great experience. He delivered the bot a few days early and was able to integrate everything that I needed. He even helped with setup of the bot and was helpful until I got the bot functioning correctly in my server. If you need any type of bot, i would look no further. Aaron is the guy."

API & Integrations
JA

jaydothxncho

United States

"Great to work with."

API & Integrations
CH

christianrisby

Denmark

4.9

Average Rating

85

Total Reviews

82

5-Star Reviews

100+

Projects Completed