Web apps and SaaS
Customer platforms, dashboards and internal tools, with sign-in, subscriptions, payments and an admin panel.
- Live updates, chat and multiplayer
- Subscriptions, checkout and invoices
- Admin panels and usage analytics
Software development studio
Web and mobile apps, built by people who run their own
d99labs is a small studio. We design, build and launch software for founders, businesses and agencies. We also run Livecade, a live-games platform with 20,000+ TikTok creators signed up.
Free 30-minute intro call. We reply within one business day.
- 20,000+creators on Livecade, our own platform
- 52+real-time games shipped
- 2products we built and sold
- Web, iOS, Androidplatforms we ship to
Services
Three things we build, each already running in production
Mobile apps
iOS and Android apps, from the first prototype to App Store and Google Play approval, on the same backend as your web product.
- App Store and Google Play release
- One backend shared with your web app
- Accounts, sign-in and paid plans
AI features
AI that does a specific job inside your product: generating content, reading text aloud, answering users or sorting data.
- OpenAI and other model APIs
- Text-to-speech and voice
- Queues for long-running generations
Who we work with
Founders, businesses and agencies hire us for different reasons
Founders
You have an idea and need a first version people can sign up for and pay for. We help cut the scope to what proves the idea, then build and launch it.
Businesses
You need a tool your customers or team will use every day, or an existing app needs new features. We can work in your current code or start fresh.
Agencies
You need developers for a client project. We work under your brand and an NDA, in your tools and on your deadlines.
Work
Products we built, launched and sold
We build for ourselves the same way we build for clients. Two of these products now belong to new owners.
Our product
Livecade
A platform that turns a TikTok LIVE into a game show. Viewers control the games with comments, likes and gifts as they happen.
We built all of it: the real-time game server, 52+ games including 3D and physics games, the creator dashboard, the stream overlay, a desktop app, payments and text-to-speech.
- 20,000+ creators
- 52+ games
- Web, overlay and desktop app
TypeScript · React · Three.js · Node.js · Socket.IO · PostgreSQL · Redis
livecade.io
Built and sold
MuzicGenerator
An AI music generator. You describe a song and get a full track with vocals, lyrics and instruments.
We built the web app and the iOS and Android apps on one backend, grew the product, then sold it.
- Web, iOS and Android
- Acquired
In the Webasyst Store
Shop-Script plugins
Live Cart shows store owners every active cart as it fills up. Wheel of Prizes adds a points-and-rewards wheel to the storefront.
We design, build, sell and support both plugins ourselves under the D99 Labs name.
- 30+ installs
- 5.0 rating on Wheel of Prizes
Built and sold
NextSlot
A slot discovery site that filters thousands of demo slots by provider, theme and features.
We built the catalogue, the search and filters, and the random picker, then sold the site.
- Acquired
Process
How a project runs, from first call to launch
Intro call
A free 30-minute call about what you want to build, who it is for and when you need it.
Scope and estimate
You get a written scope, a timeline and a fixed price for the first version before any work starts.
Weekly builds
We work in one-week cycles. Each week you get a working build to try and a short written update.
Launch and support
We release to your servers and store accounts, hand over the code and stay on for fixes and new features.
Stack
The tools behind our own products
We pick from what we already run in production. If your project uses something else, we work with it.
- Frontend
- TypeScriptReactNext.jsThree.js
- Backend
- Node.jsFastifyPythonFastAPIPHP
- Data and real-time
- PostgreSQLPrismaRedisSocket.IO
- AI
- OpenAI APIText-to-speechBackground job queues
- Apps
- iOSAndroidElectron desktop
- Hosting
- Linux serversDockerCloudflare
FAQ
Questions clients ask before we start
How much does a project cost?
It depends on the scope. After the intro call we send a fixed price for a clearly defined first version, so you know the cost before we start.
How long does a first version take?
You get a timeline with the estimate. We size the first version so it can launch quickly, then add features in weekly releases.
Who owns the code?
You do. The code lives in your repository from the first week, and all rights pass to you once the work is paid.
Will you sign an NDA?
Yes, before you share any details. For agency work we stay off the credits, and your client deals only with you.
Can you take over an existing project?
Yes. We start with a short code review, tell you what we found, and then quote the work.
Do you support the app after launch?
Yes, on a monthly plan that covers fixes, updates and new features, or task by task if you need less.
Start a project
Tell us what you’re building
Email us a few lines about the project. We’ll read it, reply with questions, and suggest a time for the intro call.
- We reply within one business day
- 30-minute call to go through the idea
- Written scope and fixed price for the first version
What helps us reply faster
- What you want to build and who it is for
- Any deadline or launch date
- A budget range, if you have one
- Links to designs, documents or an existing app