Ethereum's scalability challenges have driven the emergence of Layer 2 (L2) solutions, designed to enable faster and more affordable transactions. Among the most prominent L2 networks are Arbitrum and Optimism, both utilizing Optimistic Rollup technology. More recently, Coinbase introduced Base, an L2 scaling solution built with zkEVM (zero-knowledge Ethereum Virtual Machine) technology.
This analysis compares these three major players—Base, Arbitrum, and Optimism—across three critical dimensions: Reach, Retention, and Revenue. By examining on-chain data and key performance indicators, we aim to provide a clearer picture of the current competitive landscape and future potential.
Reach: User Adoption and Network Activity
A network's reach reflects its ability to attract users and facilitate activity. We evaluate this through several sub-metrics.
Active Addresses
Arbitrum currently leads in the number of active addresses, indicating a strong and established user base. However, Base has shown remarkable growth since March 2024, quickly gaining traction despite being a newer entrant. Optimism, while stable, lags behind the other two in terms of active address growth.
Transaction Count
Over the past three months, Base has recorded the highest number of transactions, a sign of its rapidly expanding adoption. For the six-month period, Arbitrum still holds the overall lead, demonstrating its consistent usage over a longer timeframe.
Smart Contract Deployment
The creation of new smart contracts is a key indicator of developer activity and ecosystem health. Base is leading in this metric, likely due to a surge of developers experimenting on the new platform. Arbitrum and Optimism show more stable but slower growth, consistent with their more mature status.
Decentralized Exchange (DEX) Activity
DEX trading volume is a vital sign of economic activity within a blockchain ecosystem.
Base currently sees most of its DEX volume concentrated on Baseswap. In contrast, both Arbitrum and Optimism benefit from more diversified DEX activity. It is noteworthy that Uniswap dominates DEX transactions on both Arbitrum (88%) and Optimism (99%), indicating a high reliance on a single application.
Overall Reach Conclusion
While Arbitrum remains the leader in overall reach metrics, Base's rapid growth suggests it has the potential to become a major competitor. Optimism currently shows the slowest growth among the three in terms of user and developer reach.
Retention: Measuring User Engagement
User retention indicates how well a network maintains activity over time. We analyze this through Daily Active Users (DAU) and Monthly Active Users (MAU).
- Base: Reached a peak of 350,000 DAU and nearly 4 million MAU in April.
- Optimism: Recorded 130,000 DAU and 2.4 million MAU in the same month.
- Arbitrum: Reported 300,000 DAU and 4.6 million MAU in April, with May projections showing a significant increase to 650,000 DAU and 5.5 million MAU.
An analysis of new versus existing user activity reveals distinct engagement patterns. Base shows a high influx of new users, while Arbitrum demonstrates stronger retention of existing users. Optimism sits somewhere in between, with a steadier but less explosive growth curve.
Revenue and Economic Sustainability
Revenue generation is crucial for the long-term sustainability of any blockchain network. Data from platforms like Dune and Token Terminal help us compare the economic performance of these L2s.
Average Transaction Fees
From a user's perspective, transaction cost is a primary concern. As of recent data:
- Arbitrum: $0.005 per transaction
- Optimism: $0.0278 per transaction
- Base: $0.032 per transaction
Arbitrum is clearly the most cost-effective option for users, which contributes to its high transaction volume.
Revenue and Gross Profit
Revenue trends closely follow transaction counts, as L2 network income is directly tied to transaction fees processed. At its peak, Base achieved an impressive $10 million in weekly revenue.
It's important to note that a portion of this revenue is paid to the Ethereum mainnet, as L2s must cover the cost of posting data and verifying proofs on Layer 1.
After accounting for these costs, Base leads significantly in gross profit for the year-to-date period, totaling nearly $30 million. In comparison, both Arbitrum and Optimism have grossed approximately $9.5 million each.
This higher profitability suggests that Base has a strong economic model, which could translate into greater resources for future development, ecosystem grants, and network security. Base's use of zero-knowledge proof technology and backing by Coinbase also provide a strong foundation for continued growth.
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Frequently Asked Questions
What is a Layer 2 (L2) solution?
A Layer 2 solution is a separate blockchain that extends Ethereum, processing transactions off-chain before bundling and finalizing them on the Ethereum mainnet. This approach significantly reduces fees and congestion while maintaining the security of Ethereum.
Which L2 has the lowest transaction fees?
Based on recent data, Arbitrum offers the lowest average transaction fees among the three, making it one of the most cost-effective networks for users.
Why is Base's gross profit so much higher?
Base's higher gross profit is primarily due to its rapidly growing transaction volume. Even with slightly higher fees than Arbitrum, its significant user activity generates more revenue. Its technology stack and efficient proof system may also contribute to healthier profit margins after accounting for Ethereum mainnet costs.
Is user activity the same as network revenue?
While closely related, they are not the same. User activity (transactions) generates the fee revenue. However, the network's revenue is its total income, and its profit is the revenue left after subtracting the costs it pays to use the Ethereum mainnet.
Can one dapp dominate an entire L2's activity?
Yes, as seen with Uniswap on Arbitrum and Optimism. While this shows the dapp's success, it can also indicate a lack of ecosystem diversity, which may present a concentration risk for the network.
What does retention tell us about a network?
High retention of existing users indicates a healthy, sticky ecosystem with applications that provide ongoing value. A high ratio of new users signals growth, but the network must convert them into long-term participants to ensure sustainable development.
Conclusion: The Layer 2 Battle Continues
The race for Layer 2 supremacy is far from over. Each network has distinct strengths:
- Arbitrum leads in user adoption and offers the lowest fees, making it a favorite for cost-sensitive users.
- Optimism maintains a stable and established presence but is growing at a slower pace.
- Base is the newest contender, showing explosive growth in transactions, developer activity, and—most notably—profitability. Its modern zkEVM technology and corporate backing position it as a formidable long-term competitor.
Ultimately, the "winner" may not be a single network. The future might see a multi-chain ecosystem where each L2 caters to different use cases and user preferences. What is clear is that competition drives innovation, benefiting the entire Ethereum ecosystem with better scalability, lower costs, and more advanced technology.
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