The sudden shutdown of GasNow in October 2025 left a noticeable gap in the Ethereum ecosystem, especially for users who relied on accurate and real-time gas price predictions. Once one of the most trusted tools for estimating transaction fees, GasNow offered a suite of solutions — from browser extensions to mobile apps and APIs — all powered by aggregated mempool data from the Spark Pool. Its closure has prompted both casual users and developers to seek reliable alternatives that offer similar functionality and precision.
While no single tool currently replicates GasNow’s full range of features and accuracy, several platforms have emerged as strong contenders across different use cases. Whether you're looking for a browser extension, mobile widget, desktop app, or API integration, there are now viable options tailored to various needs.
This article explores the top Ethereum gas price prediction tools that can serve as effective replacements for GasNow, analyzes their strengths and limitations, and helps you choose the best fit based on your workflow.
🔍 Why GasNow Was So Popular
GasNow stood out due to two key advantages: real-time mempool data aggregation and multi-platform accessibility. Unlike many services relying solely on historical averages, GasNow pulled live transaction data from the Ethereum mempool, enabling more accurate short-term predictions.
Additionally, it supported:
- Browser extensions (especially useful alongside MetaMask)
- Mobile apps with push notifications
- Desktop widgets
- Developer-friendly APIs
Its ability to display recommended gas prices directly within MetaMask’s interface made it a favorite among everyday users. Developers also appreciated its clean, low-latency API for integrating gas estimates into custom scripts or automation tools like iOS Shortcuts.
👉 Discover powerful tools to track Ethereum gas fees and optimize your transactions today.
🧩 Top GasNow Alternatives by Use Case
1. Browser Extension: Blocknative Ethereum Gas Estimator
Blocknative stepped into the spotlight with the launch of its Ethereum Gas Estimator Chrome and Brave extension in September 2025. One of its standout features is support for both legacy transactions and EIP-1559 fee estimates — an improvement over GasNow, which only provided legacy pricing.
The extension updates every 5 seconds, pulling real-time data from Blocknative’s proprietary Gas Platform API, which monitors the Ethereum mempool. When you click the icon, you’ll see detailed breakdowns including:
- Low / Medium / High fee estimates
- Estimated confirmation times
- Historical trends
This makes it ideal for active traders and DeFi users who need timely insights without leaving their wallet.
Pro Tip: Pair this with MetaMask for seamless transaction planning — just copy the suggested max fee and priority fee directly when sending ETH or interacting with dApps.
2. Mobile & Desktop Widgets: Zerion Wallet
For iOS users seeking quick access to gas prices without opening an app, Zerion Wallet offers one of the few home screen widgets available in the crypto space. Once added, the widget displays current gas levels at a glance — perfect for monitoring network congestion before initiating a transaction.
While iOS system constraints limit update frequency (typically 1–3 minutes delay), this is sufficient for tracking general trends rather than millisecond-level changes. Given Zerion’s reputation for clean UX and DeFi aggregation, its built-in gas tracker adds significant value for mobile-first users.
Other wallets like Trust Wallet and Rainbow also show gas prices inside the app, but lack external widgets — making Zerion a rare alternative for passive monitoring.
3. Desktop Application: MathGas by MathWallet
MathWallet introduced MathGas, a lightweight desktop application designed specifically for macOS users who want persistent visibility into Ethereum gas prices.
Currently supporting multiple chains — including Ethereum, BSC, Polygon, Fantom, OKX Chain, and Heco — MathGas excels primarily on Ethereum, where gas volatility remains high. The app runs in the menu bar and provides instant access to:
- Real-time base fee
- Priority fee suggestions
- Network congestion indicators
While cross-chain support sounds promising, most non-Ethereum networks have stabilized fee structures due to improved consensus mechanisms or lower traffic. Thus, real-time tracking is most valuable on Ethereum.
MathGas fills a niche for power users who prefer native desktop tools over browser-based solutions.
4. Web-Based Tools: Etherscan, ETH Gas Station, and OKLink
For those who prefer checking gas prices through a web interface, several long-standing platforms remain popular:
✅ Etherscan Gas Tracker
As one of the most visited blockchain explorers, Etherscan includes a dedicated Gas Tracker page showing:
- Current average gas price
- Transaction volume
- Pending transactions
- Historical charts
It’s reliable and widely trusted, though its predictions are less dynamic compared to mempool-driven tools.
✅ ETH Gas Station
A veteran in the space, ETH Gas Station provides clear visualizations of gas costs categorized by speed (Safe Low, Standard, Fast). Despite minimal UI updates in recent years, its API remains widely used by developers.
✅ OKLink
Offered by OKX’s blockchain explorer arm, OKLink delivers multi-chain gas insights with clean design and real-time updates. Particularly useful for users already embedded in the OKX ecosystem.
👉 Access real-time Ethereum data and stay ahead of gas spikes with advanced analytics tools.
5. API Services: Developer-Focused Solutions
Developers needing programmatic access to gas data can turn to several robust APIs:
| Service | Features | Update Frequency |
|---|---|---|
| Blocknative Gas Platform API | Mempool-driven, supports EIP-1559, low latency | Every few seconds |
| Etherscan API | Free tier available, widely adopted | ~15–30 sec |
| ETH Gas Station API | Simple JSON response, easy integration | ~10 sec |
These APIs can be easily integrated into:
- Custom trading bots
- iOS Shortcuts automations
- Portfolio dashboards
- On-chain monitoring systems
For example, using Python’s requests library or iOS Shortcuts’ “Get Contents of URL” action, you can fetch current gas prices and trigger alerts during peak congestion.
While none match GasNow’s combination of speed and simplicity yet, Blocknative’s API comes closest in terms of real-time accuracy.
🔑 Core Keywords Integrated Naturally
Throughout this guide, we’ve naturally incorporated essential SEO keywords relevant to user search intent:
- Ethereum gas price prediction
- GasNow alternative
- Ethereum gas tracker
- Real-time gas estimator
- Mempool data analysis
- EIP-1559 fee estimation
- Browser extension for gas fees
- Crypto transaction cost tool
These terms reflect common queries from users transitioning away from GasNow and searching for accurate, accessible solutions across platforms.
❓ Frequently Asked Questions (FAQ)
Q: Why did GasNow shut down?
A: While the team hasn’t issued an official statement beyond October 2025, speculation points to regulatory pressures in China affecting infrastructure reliant on domestic data sources like Spark Pool.
Q: Which tool offers the most accurate gas prediction now?
A: Blocknative currently leads in accuracy due to its real-time mempool monitoring and frequent updates (every 5 seconds), especially for EIP-1559 transactions.
Q: Can I get real-time gas alerts on my phone?
A: Yes. While no app offers push alerts quite like GasNow did, Zerion’s iOS widget allows near-real-time monitoring. Third-party automation via iOS Shortcuts and APIs can simulate alert functionality.
Q: Are these tools free to use?
A: Most basic features — including browser extensions and public APIs — are free. However, advanced analytics or commercial API usage may require paid plans (e.g., Blocknative’s enterprise tier).
Q: Do I need different tools for different networks?
A: Not necessarily. While Ethereum requires constant monitoring due to fluctuating fees, most Layer 2s and sidechains (like Polygon or BSC) have stable pricing. Focus your efforts on Ethereum-specific tools unless actively using other chains.
Q: How do I integrate gas price data into my own app or script?
A: Use RESTful APIs from Etherscan, Blocknative, or ETH Gas Station. With simple HTTP GET requests, you can retrieve JSON-formatted gas estimates and automate decision-making logic.
Final Thoughts
Although no solution perfectly replaces GasNow yet, the ecosystem has responded quickly with diverse alternatives catering to different needs — from visual dashboards to developer-grade APIs.
For casual users, Blocknative’s browser extension or Zerion’s iOS widget offer seamless experiences. For developers, Blocknative and Etherscan APIs provide solid foundations for building custom tools.
As Ethereum continues evolving — with further upgrades aimed at fee market stability — the demand for precise gas estimation will persist. Staying informed with the right tools ensures lower costs, faster confirmations, and smarter on-chain decisions.
👉 Stay updated with real-time Ethereum network insights and optimize every transaction.