# Neutron Guard — Secure Bitcoin PSBT signing

> Secure Bitcoin PSBT signing (iPhone/iPad app by Neutronpay Inc..)

- Source: https://appshunter.io/ios/app/neutron-guard/id6747561094 (this page in markdown: same URL + `.md`)
- Developer: [Neutronpay Inc.](https://appshunter.io/developer/1559202966)
- Category: Finance
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 47 MB
- Languages: American English
- Released: 2025-07-06
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/neutron-guard/id6747561094/reviews.md

## What is Neutron Guard?

Neutron Guard is a secure mobile app designed for signing Partially Signed Bitcoin Transactions (PSBTs) using QR codes. 

FEATURES:
• Hardware-backed key storage with biometric authentication
• QR code-based transaction signing for air-gapped security
• Multisig support following BIP-174 PSBT standards
• BIP-39 mnemonic seed generation and backup
• Multi-language support
• Dark/Light theme support
• Advanced security features with auto-lock

SECURITY FIRST:
Neutron Guard prioritizes security above all else. Your private keys never leave your device and are stored in hardware-backed secure storage when available. Biometric authentication ensures only you can access your funds.

MULTISIG READY:
Built for multisig workflows, Neutron Guard can participate as a cosigner in complex Bitcoin transactions while maintaining the highest security standards.

OPEN SOURCE:
Neutron Guard is open source and auditable, ensuring transparency and trust in your Bitcoin security solution.


## Version history (last 4 releases)

### 1.1.0 — 2025-10-28

support Liquid Glass

### 1.0.2 — 2025-07-10

Added key import function, bug fixes, performance improvements

### 1.0.1 — 2025-07-09

Bugs fixes, performance improvements

### 1.0.0 — 2025-07-07

No release notes.

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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 2026-05-19.*