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GEX Horizon VS AppWrite

Compare GEX Horizon VS AppWrite and see what are their differences

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GEX Horizon logo GEX Horizon

Free real-time Gamma Exposure (GEX) dashboard tracking SPX, SPY & QQQ Call/Put Walls, Zero Gamma Flips, and Dealer Hedging Levels.

AppWrite logo AppWrite

Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.
  • GEX Horizon GEX Horizon Dashboard
    GEX Horizon Dashboard //
    2026-07-13

Track Market Maker Positioning in Real-Time

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).

Why Gamma Exposure Matters

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.

Key Capabilities

  • Zero Gamma Flip Indicator โ€” Detect the strike where dealer positioning shifts from volatility suppression to acceleration.
  • Live SPX GEX Dashboard โ€” Real-time call/put walls, net gamma by strike, and dealer hedging levels updated with every trade.
  • 0DTE Options Flow โ€” Isolate same-day gamma to reveal how 0DTE options drive intraday dealer behavior.
  • Dealer Hedging Velocity โ€” Quantify how fast dealers must hedge. Rising velocity = escalating impact.
  • Vanna Exposure โ€” Track how IV shifts alter dealer delta, creating feedback loops beyond what gamma predicts.
  • Volatility Shock Index โ€” Composite metric assessing the probability of a regime break.

Pricing

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 Landing page
    Landing page //
    2023-09-28

AppWrite

Pricing URL
-
$ Details
Platforms
-
Release Date
-
Startup details
Country
Israel

GEX Horizon features and specs

  • Real-Time GEX Streaming
    Live sub-second WebSocket stream of net gamma exposure for SPX, SPY, QQQ, and major US equities, updated with every options trade.
  • Call Wall Detection
    Auto-identifies the strike with largest net call gamma โ€” acting as major upside resistance from heavy dealer selling pressure.
  • 0DTE Options Flow
    Intraday analytics for zero-days-to-expiration options, isolating 0DTE gamma exposure from all-expirations to reveal same-day dealer hedging impact on price action.
  • Put Wall Detection
    Automatically identifies the strike with the largest net put gamma, acting as strong downside support due to market maker delta buying obligations.
  • Live Gamma Levels Matrix
    Consolidated real-time view of key GEX levels โ€” call wall, put wall, zero gamma flip, and major gamma concentrations โ€” across all tracked underlyings in a single dashboard.
  • Dealer Hedging Velocity Index
    Measures the speed and magnitude of market maker delta hedging activity, indicating how much buying or selling pressure dealers must execute per unit of price movement.

AppWrite features and specs

  • Open Source
    AppWrite is an open-source platform, allowing developers to inspect, modify, and contribute to the code base, ensuring transparency and flexibility.
  • Self-Hosted
    Being self-hosted, AppWrite gives developers complete control over their data and server environment, enhancing security and customization options.
  • Comprehensive Backend
    AppWrite offers a wide range of backend services out-of-the-box, including authentication, database management, storage, and serverless functions, reducing the need for additional third-party services.
  • Multi-Language Support
    AppWrite supports various programming languages, which makes it versatile and developer-friendly, allowing the integration with different tech stacks.
  • Community and Documentation
    AppWrite has an active community and well-documented guides, tutorials, and API references, which are essential for learning and troubleshooting.

Possible disadvantages of AppWrite

  • Resource Intensive
    Being a self-hosted solution, AppWrite may require significant server resources for optimal performance, which can be costly.
  • Initial Setup Complexity
    The initial setup and configuration can be complex and time-consuming, particularly for those less experienced with server management.
  • Limited Third-Party Integrations
    As compared to some other backend-as-a-service (BaaS) platforms, AppWrite has fewer pre-built third-party integrations, which might limit its extensibility.
  • Newer and Evolving
    AppWrite is relatively new and still evolving, which can mean fewer features compared to more mature platforms and the potential for more bugs.
  • Maintenance Responsibility
    Since it is self-hosted, the responsibility for server maintenance, updates, and security falls solely on the user, which can be a drawback for smaller teams or solo developers.

Analysis of GEX Horizon

Overall verdict

  • I don't have verified, up-to-date information about GEX Horizon (gexhorizon.com) to make a reliable assessment of its quality, legitimacy, or performance. Before using this service, especially if it involves financial products, trading, or investments, you should conduct thorough independent research.

Why this product is good

  • I do not have specific data or verified reviews about this particular website or service in my knowledge base
  • Financial and trading platforms require careful due diligence including regulatory checks, which I cannot perform in real-time
  • Without current information, I cannot confirm the legitimacy, features, or track record of this platform

Recommended for

  • Anyone considering this service should first verify its regulatory status with relevant financial authorities
  • Check independent review sites like Trustpilot, BBB, or forums for user experiences
  • Look for verifiable company registration and contact information
  • Consult with a licensed financial advisor before making any investment decisions
  • Research the founders/team background and company history

Analysis of AppWrite

Overall verdict

  • AppWrite is a solid option for developers looking for an open-source backend solution with robust features. Its well-documented APIs and active community support make it a viable choice for both small projects and growing applications.

Why this product is good

  • AppWrite is considered a good choice, particularly for its comprehensive backend-as-a-service (BaaS) features that cater to web and mobile developers. It provides a suite of services such as user authentication, databases, file storage, and serverless functions, allowing developers to streamline their development process. Its open-source nature means developers have access to the full code base and the community-drive contributions, ensuring transparency and continuous improvements. AppWrite also emphasizes developer experience, offering easy integration with client-side SDKs and providing extensive documentation.

Recommended for

    AppWrite 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.

Category Popularity

0-100% (relative to GEX Horizon and AppWrite)
Trading
100 100%
0% 0
Developer Tools
0 0%
100% 100
Finance
100 100%
0% 0
Backend As A Service
0 0%
100% 100

Questions & Answers

As answered by people managing GEX Horizon and AppWrite.

What makes your product unique?

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:

  • Live zero gamma flip detection โ€” know the exact strike where dealer positioning shifts regime in real-time, not at yesterday's close
  • Free institutional-grade analytics โ€” call/put walls, dealer hedging velocity, and 0DTE flow are typically locked behind expensive paywalls elsewhere
  • Multi-asset coverage โ€” SPX, SPY, QQQ, NDX plus single stocks like NVDA, TSLA, AAPL, MSFT all in one dashboard
  • No delayed snapshots โ€” WebSocket-powered streaming means you see dealer positioning as it changes, not 15 minutes ago

Why should a person choose your product over its competitors?

GEX Horizon's answer

  • Real-time, not daily โ€” WebSocket streaming delivers sub-second GEX updates, so you see dealer positioning as it shifts, not yesterday's snapshot
  • Free institutional-grade data โ€” Call/put walls, zero gamma flips, dealer hedging velocity, and 0DTE flow are all available at no cost โ€” features typically locked behind expensive paywalls
  • Zero gamma flip detection โ€” Know the exact strike where the market shifts from volatility suppression to acceleration, in real-time
  • Multi-asset in one view โ€” SPX, SPY, QQQ, NDX plus single stocks (NVDA, TSLA, AAPL, MSFT) all tracked from a single dashboard
  • 0DTE-specific analytics โ€” Isolate same-day gamma exposure to understand how 0DTE options are driving intraday dealer behavior and pinning forces
  • No API key or setup required โ€” Open the dashboard and start trading. No subscriptions, no configuration, no delayed data tiers
  • Built by traders, for traders โ€” Every feature is designed around the question: "What will dealers be forced to do next?"

How would you describe the primary audience of your product?

GEX Horizon's answer

  • 0DTE options day traders who need to know whether dealer hedging will suppress or accelerate intraday moves
  • SPX/SPY index options traders who use gamma levels as key support/resistance in their daily planning
  • Futures traders hedging ES/NQ positions who need to understand dealer delta exposure dynamics
  • Retail options traders seeking institutional-grade market structure data without paying premium subscriptions
  • Quantitative analysts monitoring real-time dealer positioning for systematic strategy signals
  • Financial advisors and PMs who want a quick daily read on whether the market is in a long-gamma or short-gamma regime

What's the story behind your product?

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:

  • Expensive ($30-100+/month for daily snapshots)
  • Delayed (refreshing once per day, missing intraday regime shifts)
  • Incomplete (showing gamma charts without zero gamma flips, call/put walls, or hedging velocity)

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.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare GEX Horizon and AppWrite

GEX Horizon Reviews

SpotGamma Alternative: Why GEX Horizon is Better for Intraday Traders
Enter GEX Horizon. Built from the ground up to solve the latency, cost, and integration problems of legacy platforms, GEX Horizon is quickly emerging as the premier SpotGamma alternative. Below, we break down exactly why GEX Horizon outperforms its competitors, focusing on its free real-time data, cutting-edge Incremental Static Regeneration architecture, and its commitment...
Source: gexhorizon.com
Unusual Whales vs GEX Horizon for 0DTE Options
Predicting Market Maker Behavior: If dealers are in a "Positive Gamma" regime, they will hedge by selling into rallies and buying into dips, creating a tight, low-volatility, range-bound market. If they are in a "Negative Gamma" regime, they must sell into dips and buy into rallies, exacerbating volatility. GEX Horizon quantifies this, telling you exactly how the market will...
Source: gexhorizon.com

AppWrite Reviews

  1. Appwrite is awesome, free and open-source!

    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.

    ๐Ÿ Competitors: Firebase
    ๐Ÿ‘ Pros:    Easy to use|Cost effective|Open-source|Great user experience|Super simple|Self hosted
    ๐Ÿ‘Ž Cons:    Self hosted

10 Top Firebase Alternatives to Ignite Your Development in 2024
Appwriteโ€™s self-hosted nature gives you complete control over your data and infrastructure, great for those who are security-conscious. It also offers a comprehensive set of features, including user authentication, database management, storage, cloud functions, and more. Itโ€™s like having your very own Firebase, but on your terms.
Source: genezio.com
Top 7 Firebase Alternatives for App Development in 2024
Appwrite is an open-source backend-as-a-service platform that provides a comprehensive set of tools and APIs to help developers build modern applications. It focuses on simplicity and developer experience.
Source: signoz.io
Best Serverless Backend Tools of 2023: Pros & Cons, Features & Code Examples
Appwrite is a self-hosted BaaS platform giving you all the tools you need to build all sorts of application.
Source: www.rowy.io
2023 Firebase Alternatives: Top 10 Open-Source & Free
Appwrite permits the development to benefit from its open-source version without paying anything. However, its official website also declares that it will share the pricing details for Appwrite Cloud soon.
12 Best Open-source Database Backend Server and Google Firebase Alternatives
Appwrite is a self-hosted backend server for building web, mobile and desktop apps. It supports multiple applications natively without hacks or workarounds.It features a dashboard for apps, database, user, functions and storage management, real-time analytics per project, live connections monitor, background tasks and webhooks.Appwrite also is suitable for creating Geo-data...
Source: medevel.com

Social recommendations and mentions

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.

GEX Horizon mentions (0)

We have not tracked any mentions of GEX Horizon yet. Tracking of GEX Horizon recommendations started around Jul 2026.

AppWrite mentions (178)

  • Creating a Chatbot that actually Stands Out! (vibe coded version)๐Ÿฆ–
    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
  • The future of coding: Cursor, AI, and the rise of backend automation with Appwrite
    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
  • How to Use Appwrite in Android Jetpack Compose
    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
  • Ask HN: Who is hiring? (July 2025)
    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. Weโ€™re 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
  • Build a React File Sharing App with Granular Access Controls (ReBAC)
    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
View more

What are some alternatives?

When comparing GEX Horizon and AppWrite, you can also consider the following products

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 saviโ€ฆ

Supabase - An open source Firebase alternative

ChartGEX - Options analytics platform that maps dealer gamma exposure, Vanna/Charm flows, and ML-driven directional signals into a single trading dashboard.

Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Dashboard Options - Dashboard Options: Elite options trading analytics. Track real-time Gamma Exposure (GEX), 0DTE Greeks flow, and market maker hedging with complete privacy.

Clerk - Clerk.io, the artificial intelligence for e-commerce that knows your customers interests.