(July 18, 2025)

Rewardy Wallet is a reward-based digital wallet that has rapidly scaled since its launch, now with more than 450,000 users. It ranks first in South Korea across key metrics including daily active wallets (UAW), on-chain transaction volume, and user return rate. Its fast growth demonstrates that digital asset services can successfully operate at scale in consumer-facing environments.

Notably, more than 85 percent of Rewardy Wallet’s users had never used a blockchain wallet before. This highlights Rewardy Wallet’s role in lowering the entry barrier to Web3 services and expanding adoption among Web2 users. Behind this growth is a wallet operating model and infrastructure choice designed to support large-scale user environments reliably. Rewardy Wallet leverages Lambda256’s Nodit node services for blockchain wallet operations.

Operational Complexity in a Multi-Chain Environment

Rewardy Wallet supports a total of eight blockchain networks, including Ethereum, BNB, Arbitrum, Optimism, Polygon, Kaia, Solana, and Aptos. While managing multiple assets within a single wallet offers strong advantages from a user experience perspective, it also introduces significant technical complexity and operational burden.

Running production-grade blockchain nodes requires substantial cost and operational expertise. Even a single full node can incur significant expenses, and as the number of supported chains increases, the burden of performance tuning, monitoring, and incident response grows exponentially.

The Rewardy Wallet team initially relied on public RPCs and third-party infrastructure services. However, as service traffic increased, limitations quickly became apparent. In an environment processing approximately 100,000 API requests per day and 3 million per month, response latency and stability issues began to surface repeatedly.

“Operating and managing our own nodes required a high level of technical expertise, and the cost of running chain infrastructure could easily exceed tens of millions of won. We needed an infrastructure service that could deliver speed, stability, and reliable incident response.”
— Rewardy Wallet

In particular, the Aptos network introduced additional requirements beyond basic node connectivity. To deliver core wallet functionality, Rewardy Wallet needed to query complex datasets such as the complete list of tokens owned by each user. This required an indexer capable of processing and serving customized blockchain data. However, providers meeting this requirement were limited, creating a major operational bottleneck.

“If a node provides basic blockchain data, an indexer allows us to retrieve customized datasets. During development, we needed to fetch complex data such as each user’s token holdings, which made an indexer essential.”
— Rewardy Wallet Team

As a result, Rewardy Wallet shifted away from operating infrastructure in-house and instead chose a specialized provider capable of supporting multi-chain environments and large-scale traffic with stable node and indexer services.

Why Nodit: The Only Provider Supporting an Aptos Indexer

As a multi-chain wallet service, Rewardy Wallet required more than simple node connectivity. It needed infrastructure that could flexibly retrieve data required by service logic while maintaining stability at scale.

In general, blockchain nodes synchronize and maintain the state of a network’s raw data. Indexers, by contrast, process and structure that data into a form that can be efficiently queried under complex conditions. For wallet services, real-time access to data such as token balances and asset states is essential, making indexers a core infrastructure component rather than an optional feature.

While reviewing multiple infrastructure providers, Rewardy Wallet found that Nodit was the only service offering both node connectivity and a stable Aptos indexer. This distinction became the decisive factor in selecting Nodit as its infrastructure partner.

“Many providers supported Aptos nodes, but Nodit was the only one that offered an Aptos indexer as well.”
— Rewardy Wallet Team

Nodit’s Aptos indexer was designed to support customized data queries required by wallet services, enabling Rewardy Wallet to process complex user asset data efficiently. This capability went beyond basic network connectivity, directly supporting the implementation of core wallet features.

In addition, Nodit operates infrastructure within South Korea, providing advantages in network response time and operational communication. Real-time coordination within the same time zone enabled faster issue resolution and reduced operational risk.

“Being able to communicate in the same time zone allowed us to respond quickly when issues occurred, which was a major operational advantage.”
— Rewardy Wallet Team

Implications for Large-Scale Wallet Services

The Rewardy Wallet case illustrates how data indexing capabilities and operational responsiveness are critical to the stability and scalability of B2C wallet services operating in multi-chain, high-traffic environments. For financial institutions and enterprises considering Aptos-based services in particular, Nodit’s indexer support and domestic infrastructure operations represent an important evaluation criterion.

About Nodit

Nodit is an enterprise-grade Web3 infrastructure platform that delivers stable node services, high-performance data APIs, and real-time onchain event streaming across 20+ blockchains. Designed to support mission-critical applications in exchanges, gaming, logistics, and finance, Nodit provides the performance, scalability, and reliability enterprises need. Expanding into validator services, Nodit is positioned as a trusted core infrastructure for both developers and institutions worldwide.

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