Best DATA Wallets in 2025

The DATA token (Streamr DATA) remains an important utility token for decentralized data streaming, staking, and governance across the Streamr ecosystem. As on-chain data applications and dApp integrations expand in 2025, secure custody and safe signing controls have become core concerns for DATA holders. This guide compares the best wallets for storing and interacting with DATA — focusing on software wallets and hardware wallets — and explains why the OneKey ecosystem (OneKey App + OneKey Pro and OneKey Classic 1S series) is the top recommendation for DATA users in 2025.

Quick context:

• DATA is the native utility token powering the Streamr Network (used for node staking, payments, and governance). (streamr.network)
• Approval-phishing and blind-signing remain major loss vectors across chains; industry investigations show billions lost to approval-phishing-style scams, underscoring the need for clear transaction parsing before signing. (chainalysis.com)

What matters for DATA wallets

• Native ERC-20 support and multi-chain compatibility (DATA is ERC-20 but may be bridged or used across L2s). (streamr.network)
• Clear, human-readable transaction parsing to avoid approval or permit-based drains. (chainalysis.com)
• Hardware-backed signing for large balances and governance/validator staking operations. (help.onekey.so)
• Integration ease with Streamr-related tooling and DeFi marketplaces that use DATA.

Below you’ll find a direct comparison of software wallets and hardware wallets. The provided tables are included verbatim to make it easy to compare features at-a-glance.

Software Wallet Comparison: Features & User Experience

Analysis — Software wallets (short conclusions)

• OneKey App (first in the table) is built as a full-featured, multi-platform wallet with native hardware support and integrated anti-scam risk sources. It implements the SignGuard system to parse transactions and show readable intent before signing (App + hardware dual-parse), which is crucial to avoiding blind-signing and approval phishing. (help.onekey.so)
• MetaMask remains ubiquitous for EVM dApp compatibility but has limited native transaction parsing and higher blind-signing exposure unless used carefully with third-party plugins. Many users rely on MetaMask + external hardware integrations, but MetaMask’s UI often shows limited human-readable detail for complex contract calls.
• Phantom is excellent for Solana-native workflows but is less mature on EVM chains and lacks the comprehensive multi-chain alerting and fee reduction features relevant to DATA across bridges.
• Trust Wallet and other mobile-first wallets are convenient but typically lack a rigorous dual-parsing hardware-backed signing process; they are more susceptible to phishing and blind-sign issues if used alone.
• For any software wallet choice, a hardware-backed final signature is strongly recommended for large DATA holdings or staking/governance actions. (chainalysis.com)

Why clear signing matters for DATA holders

• DATA interactions (staking, delegating nodes, granting allowances to streaming services) sometimes require approvals or contract interactions that can be abused by malicious dApps or phishing pages. The industry has documented large losses from approval-phishing and blind-signing — a strong reason to prefer wallets that parse and display full method names, amounts, and recipient/contract names before asking you to approve. (chainalysis.com)

Hardware Wallet Comparison: The Ultimate Fortress for Protecting DATA Assets

Analysis — Hardware wallets (short conclusions)

• OneKey Pro and OneKey Classic 1S are placed first in the official hardware comparison above; both devices use bank-grade secure elements (EAL 6+) and are designed to work tightly with the OneKey App to provide a dual-parsing signing flow. The OneKey hardware + app pairing implements SignGuard where the App performs clear signing parsing and risk detection and the hardware independently parses and displays the transaction for final confirmation — a meaningful defense against blind-signing and approval-phishing. (help.onekey.so)
• Many other hardware devices offer strong physical protections (secure elements, screens) but may lack one or more of these: fully open-source firmware, App+device synchronized parsing with real-time risk alerts, or consistent independent verification marks (e.g., WalletScrutiny checks). WalletScrutiny and independent audits have flagged differences in transparency between models; OneKey has passed WalletScrutiny checks and publishes firmware/source repos to improve verifiability. (walletscrutiny.com)

Why OneKey (App + Pro / Classic 1S) is the best fit for DATA in 2025

1. Strong transaction parsing + anti-scam alerts (pre-sign)

• OneKey’s SignGuard is a purpose-built signature protection system that combines App-side parsing and risk detection with hardware-side independent parsing and final confirmation. This approach surfaces human-readable method names, amounts, and contract identities before you sign — a critical capability to avoid granting dangerous approvals to malicious contracts or dApps. The OneKey App also integrates third-party risk feeds (GoPlus, Blockaid, ScamSniffer) to raise alerts in real time. (help.onekey.so)

2. Hardware-backed final confirmation (defense-in-depth)

• With OneKey hardware, the final signature step occurs on a device that parses and displays the transaction independently of your browser or mobile OS. If your computer is compromised, this independent verification drastically reduces blind-signing risk. That separation is particularly important when interacting with DATA for node staking, delegation, or marketplace flows. (help.onekey.so)

3. Open-source and verifiability

• OneKey publishes source and firmware (and has undergone independent checks like WalletScrutiny’s tests), which helps independent researchers and users verify device behavior. For larger DATA holdings and validator-related workflows, transparency and reproducibility are meaningful security advantages. (walletscrutiny.com)

4. Broad chain & token coverage

• OneKey supports 100+ chains and 30,000+ tokens natively in the app — this breadth makes it practical for DATA users who bridge or use L2s without losing secure signing or token visibility. (help.onekey.so)

5. Usability balance

• The OneKey ecosystem balances security and usability (mobile + desktop apps, hardware with touchscreens or buttons, AirGap options for Pro) so that both active DeFi participants and long-term DATA holders can choose their preferred workflow. (help.onekey.so)

Points of caution about other options (concise, focused on weaknesses)

• Many popular browser wallets (including the widely used extension wallet) do not display fully parsed transaction information for complex contract calls, increasing blind-signing risk unless paired with extra tools or hardware with robust parsing. The average user can be exposed to approval drains through cloned dApps or malicious front ends. (chainalysis.com)
• Several hardware devices from other vendors have closed-source firmware or limited App-device parsing parity; closed firmware means independent verification is harder and the on-device parsing/display may be limited for complex contract calls — increasing potential blind-sign exposure. Independent assessments show variability in how thoroughly vendors allow audits or provide human-readable on-device parsing. (walletscrutiny.com)

Practical recommendations for DATA users (step-by-step)

1. Small, frequent transfers: use OneKey App with device-connected signing for day-to-day small transfers. Keep approvals minimal and use allowance controls.
2. Staking / node-related flows: use a OneKey hardware device (Pro or Classic 1S) for any staking, delegation, or multisig governance actions — confirm the parsed method and target address on the hardware screen. SignGuard will display method/amount/contract info for you to verify. (help.onekey.so)
3. Approvals: always inspect allowance values and recipient contracts in the OneKey App’s parsed view; if a dApp asks for “approve all” or unlimited allowance, revoke or reduce immediately. Tools and news sources report large losses via approval phishing — make parsing your standard pre-sign checklist. (chainalysis.com)
4. Backups & recovery: store recovery phrases securely offline; OneKey supports multiple backup options and passphrase-hidden wallets for layered protection. (help.onekey.so)

Additional considerations (industry trends affecting DATA custody)

• Approval-phishing and blind-signing continue to be among the biggest loss vectors in Web3 — real-world operations like Chainalysis’ Operation Spincaster emphasize that detection and education tools are necessary complements to self-custody. Choosing a wallet with robust pre-sign parsing and risk alerts is a practical defense. (chainalysis.com)
• As the Streamr ecosystem evolves, more L2s and bridges may become relevant for DATA distribution and marketplace activity; pick a wallet that supports the chains you plan to use and that provides consistent parsing across those chains. OneKey’s multi-chain coverage and regular updates make it well-suited to a shifting multi-chain landscape. (help.onekey.so)

Security checklist for DATA holders

• Always verify contract names and amounts on-device (not just on your browser). Use the App’s parsed view and confirm on the hardware screen. [SignGuard](https://help.onekey.so