AppWrite
Supabase
Firebase
Clerk
PocketBase.io
Xano
Convex.dev
PropelAuth
GEX Horizon
Barchart
ChartGEX
Dashboard Options
FlashAlpha
GEX Horizon is a free, real-time Gamma Exposure (GEX) analytics platform for options traders who need to see where dealers are positioned โ and what they'll be forced to do next.
Unlike legacy GEX tools that refresh daily, GEX Horizon delivers sub-second WebSocket streaming of net gamma exposure across SPX, SPY, QQQ, NDX, and equities (NVDA, TSLA, AAPL, MSFT, IWM).
When market makers are long gamma, they trade against the trend โ buying dips, selling rallies โ suppressing volatility. When short gamma, they chase momentum โ buying highs, selling lows โ accelerating moves. Knowing which regime you're in is the most actionable market structure data available.
| Tier | What You Get |
|---|---|
| Free | Real-time GEX, call/put walls, zero gamma flip for SPX, SPY, QQQ |
| Pro | Tick-level data, vanna, volume-profile GEX, more underlyings |
| Institutional | Full API, custom underlyings, bulk exports, dedicated support |
See the flow. Anticipate the hedge. Trade the structure.
AppWrite GEX HorizonAppWrite is recommended for developers building applications who require a scalable backend solution without the overhead of managing infrastructure. It is particularly suited for developers who prefer open-source platforms and those who want to avoid vendor lock-in. AppWrite's features make it a good fit for startups, hobby projects, and even educational purposes where full control over the backend is desirable.
GEX Horizon's answer:
GEX Horizon is the only free platform that delivers real-time, sub-second gamma exposure data via WebSocket streaming. Most GEX tools update once daily โ we update with every options trade. Key differentiators:
GEX Horizon's answer:
GEX Horizon's answer:
GEX Horizon's answer:
GEX Horizon was built out of frustration with the status quo in options analytics. Institutional traders have always had access to real-time gamma exposure data โ it's fundamental to understanding market maker behavior and intraday volatility regimes. Yet the tools available to most traders were either:
We believed that every trader deserves to see where the dealers are positioned โ in real-time, without a paywall. So we built the WebSocket infrastructure, the real-time GEX computation engine, and the intuitive dashboards that make institutional-grade options market microstructure data accessible to everyone. The result is GEX Horizon โ free, real-time, and built for the traders who need it most.
I've use it instead of Firebase on a 15$ DigitalOcean droplet and saved around ~$150 a month. Managing my own infra does take some extra time, but definitely worth it. The APIs and SDK are also surprisingly much easier to consume than Firebase. Waiting for the cloud version.
Based on our record, AppWrite seems to be more popular. It has been mentiond 178 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Initially, I was using the Supabase free tier, but I was hitting the limits, and my app was becoming stale. Then I switched to Appwrite. Both are totally different; one is SQL, while the latter one is NoSQL. Although use node-appwrite package to skip the manual schema add-ons. - Source: dev.to / 6 months ago
Appwrite is an open-source platform that simplifies backend setup by providing authentication, databases, storage, functions, and hosting all in one place. - Source: dev.to / 9 months ago
I love Appwrite. My first hackathon was actually from Appwrite (using Appwrite) 2 years ago, and I've been using it ever since. - Source: dev.to / about 1 year ago
Appwrite | Remote | Platform Engineers, AI, Interns | https://www.appwrite.careers Appwrite (https://appwrite.io) is an open-source backend platform that helps developers build secure web and mobile apps faster. Weโre hiring engineers across multiple teams to improve infrastructure, expand developer tooling, and scale our platform. Open roles: โ Platform Engineer. - Source: Hacker News / about 1 year ago
Appwrite is a backend-as-a-service platform that provides authentication, storage, and database. Appwrite is used for authentication and storage. - Source: dev.to / over 1 year ago
Supabase - An open source Firebase alternative
Barchart - Barchart Stocks & Futures app shows a list of stocks on the basis of ranking and performances as compared to other stocks through which you can do a comprehensive research before buying shares of a company to reduce the risk of losing your life saviโฆ
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
ChartGEX - Options analytics platform that maps dealer gamma exposure, Vanna/Charm flows, and ML-driven directional signals into a single trading dashboard.
Clerk - Clerk.io, the artificial intelligence for e-commerce that knows your customers interests.
Dashboard Options - Dashboard Options: Elite options trading analytics. Track real-time Gamma Exposure (GEX), 0DTE Greeks flow, and market maker hedging with complete privacy.
