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Hi, I'm Tosin Peter

Software Developer

Crafting exceptional web and mobile app experiences products that feel fast, look sharp, and actually ship.

Tosin Peter, Mobile Engineer in Lagos, Nigeria
React Native
Expo
Flutter
Rork AI
Lovable
Base44
AppsFlyer
Firebase
Supabase
OpenAI
TypeScript
Figma
Framer
Swift
Sentry

What I do

I ship mobile, web, and AI products — and finish the ones that got stuck.

0150+ shipped

Mobile apps

iOS and Android with Flutter, FlutterFlow, and Expo — founder MVPs through production apps, then onto the App Store and Google Play.

Flutter · Expo · FlutterFlow · App Store

02

Web & design

Conversion-focused Framer sites and Figma-to-build UI. Landing pages and product sites that actually ship.

Framer · Figma · TypeScript

03

AI & rescue

LLM features, agents, and RAG in real apps — plus finishing Lovable, Replit, Bolt, Cursor, and Rork prototypes.

OpenAI · Lovable · Replit · Cursor

Who I am

About

I'm a mobile engineer based in Lagos, Nigeria. I build iOS and Android apps with Flutter, FlutterFlow, and Expo — and conversion-focused websites in Framer.

Over the years I've shipped 50+ mobile products, from MVPs for founders to production apps with auth, backends, and store deployment. I also rescue messy AI-generated prototypes from Lovable, Replit, Bolt, and Cursor and turn them into apps people can actually use.

If you have a half-finished idea, a broken vibe-coded build, or a product that needs to land on the App Store — that's the work I take on.

What we sell

Services

  • Service

    Framer: Landing Page Design & Development

    Pricing

    Contact for pricing

    View Service
  • Service

    Mobile App: Native & Cross-Platform Android and iOS

    Pricing

    Contact for pricing

    View Service
  • Service

    App Store: Convert Lovable / Replit into Android & iOS

    Pricing

    Contact for pricing

    View Service
  • Service

    Rescue: Fix AI Web Apps (Lovable, Replit, Supabase, Firebase)

    Pricing

    Contact for pricing

    View Service
  • Service

    FlutterFlow: Fast MVP App Development

    Pricing

    Contact for pricing

    View Service
  • Service

    AI Product: FlutterFlow AI-Powered App Development

    Pricing

    Contact for pricing

    View Service

After launch

Client results

Marec Braun’s habit-change app went live — then the numbers followed. Production performance over the last 180 days. Watch hisvideo testimonial.

In the room

Clients I've worked with

Real calls with founders and teams — not stock photos. These are working sessions from shipped and in-progress products.

  • Call with Mohammed Alamidi

    Mohammed Alamidi

    Product session

    On a call
  • Call with KZ Tan

    KZ Tan

    MindQuest OS

    On a call
  • Call with Sander Heggestad

    Sander Heggestad

    Applify Lab

    On a call
  • Call with Tim

    Tim

    Build review

    On a call
  • Call with Jonas Keller

    Jonas Keller

    AMZ Visuals

    On a call
  • Call with Oleksii Borok

    Oleksii Borok

    GigRadar

    On a call
  • Call with Sam Lawrence

    Sam Lawrence

    Product call

    On a call
  • Call with Mustard Seed

    Mustard Seed

    Launch planning

    On a call
  • Call with Cash Spencer

    Cash Spencer

    Austin Riddle Co.

    On a call
  • Call with Sasha Mrejen

    Sasha Mrejen

    Working session

    On a call
  • Call with Edres Al Ali

    Edres Al Ali

    Gloord App

    On a call
  • Call with Telo Santos

    Telo Santos

    Product call

    On a call
  • Call with Ashim Aryal

    Ashim Aryal

    Client session

    On a call
  • Call with Karl Kronenberger

    Karl Kronenberger

    Rork Lacrosse

    On a call

Social proof

Recommendations

21 client reviews from Upwork, Fiverr, and Contra — plus a video from Marec Braun, founder ofQuitli. More on my Upwork and Fiverr profiles.

Marec Braun

Founder, Quitli

Live results
  • “Tosin is really great to work with — professional, patient, and super easy-going. Even with unexpected issues, he stayed reliable, clear, and focused until the end. The work is clean and he makes the whole process smooth. Honestly, one of the best experiences I’ve had on Upwork — the goat, no doubt.”

    AI Chatbot AppUpwork
  • “Tosin worked diligently and met all deadlines. When asked to expedite the process he gladly made it work and did whatever was asked of him!”

    Expo / Rork PublishUpwork
  • “We needed some adjustments and Tosin got it done same day as fast as I needed him to do it”

    Updates for AppUpwork
  • “Tosin is great to work with. Quick and communicative, but most of all he's bright and able to solve problems much faster than I would have been able to.”

    Replit Real EstateUpwork
  • “amazing work, quick and efficient. I will be using Tosin again in the future”

    Replit MVP DeployUpwork
  • “Thanks for the help. Did a good job in only 1 hour”

    UI + Supabase FixUpwork
  • “Peter is talented solving errors on what it cannot be fixed on Bolt New. He is a brilliant guy super talendted! 100 percent recommended”

    Bolt + PaymentsUpwork
  • “A+++++ Peter is talented for what his doing. Very kind and helpful. I 100 percent recoomend.”

    Error FixUpwork
  • “very pleasant programmer, everything was implemented as discussed, it was a lot of fun working with him! Excellent performance!”

    ehrlich_kickerFiverr
  • “tosinpeter1 did what I asked for and was very helpful when I asked him to modifying the product before delivery. Very good experienced, suggested!”

    luca_didomenicoFiverr
  • “best custom project maker will definitely work with him again”

    niucristianFiverr
  • “Fantastic work! You can see the website on easymoon.io. Reason for being on overtime was because of me.”

    tobias_ethFiverr
  • “Good seller, patient and starting the next work with him again”

    amalthomas99Fiverr
  • “All recommendations !! Broz finished the job and as much as he demanded that I give him, he did everything without discussion!”

    animesellingFiverr
  • “Very responsive seller. Very fast changes. Perfect design for our business model.”

    indegoimportsFiverr
  • “Super quick work and easy to work with.”

    eivindhelgerodFiverr
  • “So glad we got to work together on this, he went above and beyond and really helped take my website to a higher level of detail and professionalism. Thank you.”

    jacksontjtateFiverr
  • “I had excellent experience working with Tosin on a framer website redesign, He was quick to respond and managed every request with professionalism. And i will keep using him again, Thanks Tosin!”

    alexanderrazFiverr
  • “Tosin Peter did an amazing job with my Framer website redesign. Clean, modern, and delivered right on time. Highly recommend!”

    ademola_smsFiverr
  • “Awesome work! The Framer site looks clean, modern, and exactly how I wanted. Fast, professional, and highly recommended!”

    april_mayerFiverr
  • “Tosin was professional, responsive, and consistently on time, communication was excellent throughout, which made the project easy to manage. The one area that occasionally slowed things down was translating the creative and aesthetic direction I was going for; a bit more back-and-forth was needed there than I expected. Reliable to work with overall, and I'd recommend him for projects with a clear creative brief already in place.”

    Joe McLeanContra

Let's talk

Contact

Have a question or a project in mind? Feel free to reach out.

Location:Lagos, Nigeria