---
title: "Igloo Signer - Reviews, Revenue and Downloads in Japan | Apple App Store"
description: "Igloo is a mobile companion for Frostr threshold signing on Nostr.  With Igloo, your iPhone can operate as a signing node in a threshold group. The app focuses on clear onboarding, signer visibility, "
---

# Igloo Signer — Japan

![Igloo Signer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/2b/79/a2/2b79a21c-ce79-22b7-c1c3-b6af1de089dd/AppIcon-1x_U007epad-0-1-85-220-0.png/434x0w.png)

**Developer:** [Austin Kelsay](https://apptail.io/developer/austin-kelsay-fDOUKb)
**Category:** Developer Tools
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** org.frostr.igloo
**Store:** Apple App Store
**Country:** Japan
**Version:** 1.1 (released 2026-03-10)
**Original Release:** 2026-03-16
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id6758069194)
**AppTail Page:** [https://apptail.io/app/igloo-signer-XyUy/japan](https://apptail.io/app/igloo-signer-XyUy/japan)

## Igloo Signer Description
Igloo is a mobile companion for Frostr threshold signing on Nostr.

With Igloo, your iPhone can operate as a signing node in a threshold group. The app focuses on clear onboarding, signer visibility, and day-to-day operational safety.

Key features:
- Import credentials using QR scan or manual entry
- Run your phone as a threshold signer node
- View peers and check connectivity
- Monitor signing sessions and logs
- Use Demo Mode to explore the app without production credentials
- Store credentials on-device with platform secure storage

Important notes:
- Igloo responds to valid threshold signing requests from your peer quorum.
- Igloo does not independently initiate signatures.
- iOS uses a background audio/soundscape mechanism to keep signer processing active when the app is backgrounded.

## Igloo Signer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/50/49/28/504928d6-8091-fd72-2f75-244709bbc931/01-home.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b5/f1/c5/b5f1c56a-520f-4e71-b913-f2cab41f964b/04-signer-status.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fd/54/1f/fd541f1d-c4bc-883e-0984-744a5b38428d/05-sessions-logs.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9c/5f/10/9c5f101e-4c14-e0a0-b74e-2fbe20c3f932/06-settings-security.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e7/d1/f5/e7d1f58d-c1c0-9988-71e8-177980d01ba6/07-peers.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/36/f3/a9/36f3a9d6-4616-6786-8647-d52bb33e32dd/03-manual-import.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/39/dc/fb/39dcfbb8-84a9-8069-eb80-0234843cc4ee/02-scan-qr.png/1284x2778.png)







## Igloo Signer Available In
- [Japan](https://apptail.io/app/igloo-signer-XyUy/japan)
- [Romania](https://apptail.io/app/igloo-signer-XyUy/romania)
- [United States](https://apptail.io/app/igloo-signer-XyUy/united-states)

---

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