# Cuvex

> Secure, zero-knowledge cryptocurrency wallet for managing Bitcoin and signing transactions offline. (iPhone/iPad app by Semilla3 LLC.)

- Source: https://appshunter.io/ios/app/cuvex/id6448460490 (this page in markdown: same URL + `.md`)
- Developer: [Semilla3 LLC](https://appshunter.io/developer/1764595205)
- Category: Finance
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 16.4 · 64 MB
- Languages: American English, Brazilian Portuguese, European Spanish
- Released: 2023-11-15
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cuvex/id6448460490/reviews.md

## What is Cuvex?

Zero-Knowledge Policy
Cuvex never requests, stores, or processes personally identifiable information. You can manage your Cuvex cards and use the app without ever revealing any personal data not even your email address!

Intuitive and User-Friendly Experience
Our app is designed to be exceptionally simple and intuitive. Whether you're a seasoned crypto professional or just entering the world of blockchain technology, you’ll enjoy a seamless experience from the very start.

1. Monitor Wallet Balances “Watch Only”

The app enables you to view real-time balances of your wallet(s) in a secure, watch-only mode.

2. Manage Your Cards 

For security reasons, we advise against physically labeling your Cuvex cards. Instead, you can visually track them in the app using the aliases you've assigned via your Cuvex device.
Cuvex will notify you when it's advisable to clone your cryptogram to a new card, since the typical card lifespan is approximately 10 years or 15,000 usage cycles.


3. NEW Sign PSBT Transactions with Dual Airgap

First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based vulnerabilities.


4. Comprehensive Coin Control Features

Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new smartphone whenever needed.
5. Firmware Updates

Keeping your Cuvex device updated is not only essential for security, but also enables access to all the latest features we roll out.
You can sync your Cuvex device via a fully encrypted Bluetooth connection with asymmetric key exchange and firmware hash validation. This ensures a completely secure update process no need to connect it to a computer.

Embrace Sovereign and Secure Self-Custody!

## Key features

- Zero-knowledge policy for privacy
- Watch-only wallet balance monitoring
- Card management with aliases
- Dual airgap transaction signing
- UTXO and coin control features
- Secure firmware updates via Bluetooth


## Frequently asked questions about Cuvex

### Does Cuvex store any of my personal information?

No, Cuvex operates under a strict zero-knowledge policy and does not request, store, or process any personally identifiable information. You can use the app without providing an email address or any other personal data.

### How does Cuvex ensure the security of transactions?

Cuvex utilizes a dual airgap system for signing transactions. The first airgap configures the transaction within the app, and the second involves scanning a card with your encrypted seed phrase and private keys using the Cuvex device for a completely offline signing process.

### Can I monitor my existing cryptocurrency wallets with Cuvex?

Yes, Cuvex allows you to monitor the real-time balances of your existing wallet(s) in a secure, watch-only mode. This feature provides visibility without granting the app access to your private keys.

### What are the benefits of using Cuvex's coin control features?

Cuvex offers comprehensive coin control, including account management, smart transaction labeling for metadata, and UTXO management to prevent unintended spending. You can also export labeled metadata for seamless wallet migration.

### How often is Cuvex updated?

Cuvex was last updated on 2026-04-17 with version 1.3.5. Regular firmware updates are essential for security and to access new features, and can be synced via an encrypted Bluetooth connection.

### What devices is Cuvex compatible with?

Cuvex is currently supported on iPhone and iPod devices. The app is designed for users aged 17 and older.

### What is the typical lifespan of a Cuvex card?

The typical lifespan of a Cuvex card is approximately 10 years or 15,000 usage cycles. The app will notify you when it's advisable to clone your cryptogram to a new card.

### Is Cuvex available for free?

Yes, Cuvex is available for free. There are no in-app purchases or subscription fees associated with using the application.

## Version history (last 5 releases)

### 1.4.2 — 2026-08-15

1. NEW Sign PSBT Transactions with Dual Airgap
First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction
details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted
seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based
vulnerabilities.

2. Comprehensive Coin Control Features
Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent
address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your
funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new
smartphone whenever needed.

### 1.4.1 — 2026-08-13

1. NEW Sign PSBT Transactions with Dual Airgap
First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction
details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted
seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based
vulnerabilities.

2. Comprehensive Coin Control Features
Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent
address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your
funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new
smartphone whenever needed.

### 1.4.0 — 2026-08-01

1. NEW Sign PSBT Transactions with Dual Airgap
First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction
details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted
seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based
vulnerabilities.

2. Comprehensive Coin Control Features
Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent
address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your
funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new
smartphone whenever needed.

### 1.3.7 — 2026-06-11

1. NEW Sign PSBT Transactions with Dual Airgap
First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction
details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted
seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based
vulnerabilities.
2. Comprehensive Coin Control Features
Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent
address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your
funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new
smartphone whenever needed.

### 1.3.6 — 2026-06-06

1. NEW Sign PSBT Transactions with Dual Airgap
First Airgap: Configure the transaction within the app. Select the amount, choose UTXOs, add recipients, set transaction
details, and adjust fees. Once configured, the transaction is recorded directly onto a Cuvex NFC card.
Second Airgap: For final signing, the Cuvex device will prompt you to scan a second card that securely stores your encrypted
seed phrase and private keys. This ensures a fully offline signing process completely isolated from internet-based
vulnerabilities.
2. Comprehensive Coin Control Features
Take full control of your Bitcoin management:
Account Management: Create new accounts quickly and easily.
Smart Transaction Labeling: Annotate each transaction with metadata such as observer, amount, and purpose to prevent
address reuse.
UTXO Management: Freeze specific UTXOs to avoid unintended spending and gain an extra layer of privacy control over your
funds.
Label and Descriptor Export: Backup your labeled metadata with a tag file, allowing seamless wallet migration to a new
smartphone whenever needed.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*