Copper Unlimited vs ByCustody
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Copper Unlimited
This cryptocurrency wallet uses advanced multi-party computation to secure digital assets. It allows for the creation and signing of transactions without exposing private keys, offering a highly secure method for managing crypto.
- Multi-party computation (MPC) cryptography
- Secure transaction signing
- Private key never revealed
- Supports over 100 cryptoassets
- Fast withdrawal processing
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Copper Unlimited is a secure wallet for cryptocurrencies. It uses multi-party computation (MPC) cryptography to create and sign transactions without ever revealing a user’s private key. The Copper Unlimited app can only be used by copper.co customers who have completed all KYC (Know Your Customer) and AML (Anti-Money Laundering) checks. The app is designed to be used by institutions, sophisticated investors, asset managers, and professional traders only. If you’re interested in using the app, and do not already have a copper.co account, please contact our sales team who can speak to you about the requirements. Copper Unlimited supports an ever expanding universe of cryptoassets, including Bitcoin (BTC), Ethereum (ETH), Ripple (XRP), Tether (USDT), plus over 100 more. Copper chose MPC technology because the key that executes the transaction is a collectively generated value. That means a single key never exists in whole, or lives on any device (including your app!). This renders an attack in key theft effectively impossible while also sheltering from internal fraud and collusion – preventing any employee, or group of employees, from misusing the key. Copper Unlimited is the fastest and most secure way to process withdrawals from Copper’s offline vault infrastructure. To learn more, visit our website: www.copper.co If you need support, we’re always available through our web chat, online FAQ, or you can contact the support team via email: support@copper.co
ByCustody
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ByCustody is the premier, end-to-end platform for crypto, web3, and digital asset businesses. Use the ByCustody Mobile app to authorize operations initiated from your ByCustody web console. Prior to using the app, you must be a ByCustody customer. ByCustody Mobile allows you to: Sign transactions Approve transactions prior to signing them, for users with an Approver role Initiate DeFi application access Approve new whitelisted addresses Add or remove users from the workspace Perform other operations The ByCustody Mobile app holds one crypto key share, while the remaining key shares are part of the ByCustody SaaS, providing a secure MPC mechanism to hold and transfer digital assets. Operations are initiated from the ByCustody web console, and then a push notification is sent for approval using the ByCustody Mobile app. Security is guaranteed through ByCustody MPC-CMP technology, built-in device security, and a strong authentication mechanism: FaceID, TouchID, or an NFC-enabled device, selected by the user.
Screenshots
Verdict
Copper Unlimited and ByCustody are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Copper Unlimited ships an update monthly, ByCustody every 2 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Copper Unlimited | ByCustody |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 67 MB | 29 MB |
| Age rating | 17+ | 17+ |
| Developer | COPPER TECHNOLOGIES (UK) | Bycustody Sdn. Bhd. |
In-app purchases
Copper Unlimited
No in-app purchases
ByCustody
No in-app purchases








