Arbitrum vs Starknet
Arbitrum (ARB) and Starknet (STRK) both sit in the layer 2 category, so they compete for the same slot in a portfolio. Arbitrum launched in 2023, 1 year before Starknet. Arbitrum uses Rollup optimista sobre Ethereum and Starknet uses Rollup ZK sobre Ethereum. This page compares what can actually be verified about each protocol — nobody can tell you which will be worth more, and this page does not try to.
Cryptocurrencies are a highly volatile asset class without the protections of regulated funds: you can lose your entire investment. This comparison is educational content about the technical characteristics of two protocols, not a buy recommendation or a price forecast.
Head to head
Verifiable data for each protocol. Price and performance are deliberately left out: they change daily and cannot be derived from technical specs.
| Arbitrum | Starknet | |
|---|---|---|
| Symbol | ARB | STRK |
| Launched | 2023 | 2024 |
| Consensus | Rollup optimista sobre Ethereum | Rollup ZK sobre Ethereum |
| Max supply | 10.000M | 10.000M |
| Category | Layer 2 | Layer 2 |
This table does not say which one is "better". It says how they differ, which is the only thing that can be stated without guessing.
Arbitrum
ARBThe Ethereum layer 2 with the most DeFi activity: same guarantees, much lower fees.
Starknet
STRKA layer 2 based on zero-knowledge proofs (STARKs), cutting-edge scaling technology.
Frequently asked questions
What is the difference between Arbitrum and Starknet?+
Arbitrum (ARB) launched in 2023, uses Rollup optimista sobre Ethereum and has a maximum supply of 10.000M. Starknet (STRK) launched in 2024, uses Rollup ZK sobre Ethereum and has a maximum supply of 10.000M. Beyond the numbers, they were built for different purposes — see the description of each below.
Which one will be worth more?+
Nobody knows, and anyone telling you otherwise is guessing. Crypto prices depend on adoption, regulation, liquidity and sentiment, none of which can be forecast from a protocol's specs. This page deliberately compares only what is verifiable today.
Which has the scarcer supply?+
Both have a hard cap: 10.000M for Arbitrum and 10.000M for Starknet. A cap limits future issuance, but it says nothing about demand — and demand is what sets the price.
Do they use the same technology?+
No: Arbitrum uses Rollup optimista sobre Ethereum and Starknet uses Rollup ZK sobre Ethereum. The consensus mechanism affects energy use, how the network is secured and how new coins enter circulation.
Should I hold both?+
That is a question about your risk tolerance, not about these two protocols. Crypto is a volatile asset class where you can lose your entire investment, and holding two coins in the same category adds far less diversification than it looks — they tend to move together. This is educational content, not a recommendation.