Tel AvivTop App & Web Developers in Tel Aviv
Tel Aviv's experienced software development partner. We build high-performance mobile apps and web platforms for Startup Nation's AI, cybersecurity, and deep-tech ventures.
App369 is a founder-led software studio based in Miami, Florida. We build custom mobile apps, web platforms and AI features for businesses in Tel Aviv and beyond, working remotely on Eastern Time.
- Fiverr
- 5.0 · 126 reviews
- Own product
- Workspace369
- Fixed-price offers from
- $450
Why App369
Why Tel Aviv Businesses Choose App369
What Tel Aviv teams should know before working with App369.
Serving Tel Aviv, Herzliya, Ra'anana, and Israel's Silicon Wadi tech corridor
Focus on AI/ML, cybersecurity, and deep tech
Understanding of Israeli business culture including Innovation Authority grants, ILS billing, and Technion/Hebrew University talent pipelines
What we build
Software Development Services in Tel Aviv
From Rothschild Boulevard to Herzliya Pituach, we deliver software that matches the velocity and innovation standards of Startup Nation.
Mobile Apps
iOS and Android apps built with Flutter from one codebase, from concept to App Store launch.
- iOS & Android
- Cross-Platform
- App Store Optimization
- Maintenance & Updates
Web Development
Fast websites and web applications, built for search and for phones first.
- Custom Design
- E-Commerce
- SaaS Applications
- SEO Optimization
Custom Software
Internal tools, integrations and back-office systems engineered around how your team already works.
- Enterprise Development
- API Integration
- Cloud Migration
- Technical Consulting
How it works
Our 4-Phase Development Process
A written scope and four clear phases keep Tel Aviv projects predictable.
Discovery
Understanding your vision, goals, and market requirements through stakeholder interviews and competitive analysis.
Design
Creating clear UI/UX with interactive prototypes you can click through before we build.
Development
Building with Flutter, Vue.js, Node.js, and GCP using 2-week Agile sprints with weekly milestone reviews.
Launch
Deployment to production with crash and uptime monitoring and ongoing maintenance.
Technologies
- Flutter
- TypeScript
- Node.js
- GCP
- Firebase
- Vue
- JavaScript
- Python
Questions
Frequently Asked Questions
How long does a typical project take?
It depends on scope. As a rough guide, a marketing website takes 4-8 weeks, a web application 2-4 months, and a mobile app 3-6 months. Every Tel Aviv project starts with a written scope and milestone plan, so you know the timeline before any build work starts.
Do you provide ongoing support?
Yes. After launch we offer maintenance that covers bug fixes, iOS and Android OS updates, security patches, dependency upgrades and small feature work, so your Tel Aviv app keeps working as the platforms change.
What's your pricing model?
App369 uses project-based pricing with a 50/50 payment structure: 50% upfront and 50% on completion. Current ranges are published on our fee structure page, and smaller fixed-price packages are available for well-defined work.
Can you work with existing projects?
Yes. We take over existing codebases, especially Flutter and Firebase apps, for code audits, bug fixes, new features and migrations. Tel Aviv businesses with an app that stalled or a developer who left can start with an audit before committing to a larger build.
What technology do you use?
Mostly Flutter for iOS, Android and web apps from one codebase, Firebase and Google Cloud for backends, and Vue/Nuxt for websites. For AI features we integrate large language models for assistants, document extraction and automation.
Your Development Partner
Simon Dziak
As founder of App369, I personally oversee every project we take on, from scoping to launch. I build with Flutter, Firebase and Google Cloud, and I also built and run Workspace369, a client-management platform for freelancers and small businesses. Based in Miami, Florida, we serve clients across Tel Aviv and nationwide.
Start Your Tel Aviv Project
Fiverr reviews / 95 on app work
What buyers said about working with Simon
“Syzmon has again delivered a high quality product and given his all to ensure it meets requirements and then some.”
A buyer in the United States, August 2022. App development on Fiverr “Syzmon is a very hard working and technically nimble developer. He works day and night to complete the work. This was a large project and required adjustments along the way and Syzmon was flexible and helped discover optimal solutions and adjusted as we learnt better solutions.”
A buyer in the United States, July 2022. App development on Fiverr “Great work! Szymon helped our mobile app concept come to life and we are very pleased with the outcome. He was great to communicate with throughout the process, making himself available when I needed him, and was quick to respond to feedback. We will definitely use him again. Thanks Szymon!”
Rebecca, United States, June 2022. App development on Fiverr
Read the whole story
- Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store (Mark, United States)
- A large custom app build, delivered on the back end and the front end (A buyer in the United States)