# GPU Host Monitor — vast.ai Fleet Monitor

> vast.ai Fleet Monitor (iPhone/iPad app by Taylor Mitchell.)

- Source: https://appshunter.io/ios/app/gpu-host-monitor/id6755136222 (this page in markdown: same URL + `.md`)
- Developer: [Taylor Mitchell](https://appshunter.io/developer/1804475385)
- Category: Utilities
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Released: 2025-12-16
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/gpu-host-monitor/id6755136222/reviews.md

## What is GPU Host Monitor?

IMPORTANT: This app is for EXISTING GPU hosting providers only. You must already have machines listed on vast.ai to use this  
  app.  
 
  HostMonitor is the professional monitoring and management solution for GPU hosting providers. Keep track of your entire GPU   
  fleet, monitor real-time earnings, manage pricing, run self-tests, and stay informed about rental activity, all from your     
  iPhone or iPad. 
                                                                                                                                
  WHO IS THIS APP FOR?  
  
  This app is designed exclusively for GPU hosting providers who already have machines listed on vast.ai. If you're not    
  currently a vast.ai host, you'll need to set up your hosting infrastructure first at vast.ai before this app will be useful.  

  KEY FEATURES 

 Fleet Overview
  • View all your listed machines at a glance
  • Real-time status monitoring (online, rented, offline, deverified)
  • Quick identification of issues across your fleet
  • Sortable and filterable machine list

 Earnings Tracking
  • Live hourly and daily earnings per machine
  • Total fleet earnings summary
  • Pricing breakdown by component (GPU, storage, bandwidth)

  Pricing Management
  • Update GPU pricing (on-demand and interruptible)
  • Adjust storage and bandwidth rates
  • Bulk pricing updates by GPU type or percentage
  • Preview changes before applying

  Self-Test Runner
  • Run reliability tests on your machines
  • Test multiple machines sequentially
  • View detailed test results in History
  • Background execution - safe to close while running

  History & Event Log
  • Track all fleet activity in one place
  • Filter by: Rentals, Status, Self-Tests, Pricing
  • Tap any event for full details
  • Chronological event timeline

  Machine Details
  • Complete GPU specifications (model, VRAM, temperature, PCIe)
  • System specs (CPU, RAM, storage, motherboard)
  • Network information (upload/download speeds, public IP)
  • Performance metrics (reliability score, verification status)
  • Active rental information
  • Software versions (NVIDIA drivers, CUDA, Ubuntu)

  Rental Monitoring
  • See which machines are currently rented
  • Track on-demand vs interruptible rentals
  • Monitor stored instances
  • View rental history and patterns
  • Get alerted when machines go offline or become deverified
  • Optional rental start/end notifications
  • Discord webhook integration for team notifications

 SECURITY & PRIVACY

 Your data security is our priority:
  • API keys stored in iOS Keychain (encrypted by Apple)
  • Sensitive data encrypted at rest and in transit
  • A secure server is used for features not available via the Vast.ai API (self-tests, notifications)
  • No analytics or tracking

  REQUIREMENTS
   
  To use this app, you must:
  1. Have an active vast.ai host account  
  2. Have machines listed on vast.ai  
  3. Generate an API key from console.vast.ai 
   
  New to GPU hosting? Visit vast.ai to learn about becoming a host provider.  
  
  SUPPORT 
 
  Visit our support page at low-pe.github.io/host-monitor-support for help, documentation, and feature requests. 
  
  NOTE: HostMonitor is not affiliated with or endorsed by vast.ai. This is an independent monitoring tool created by the GPU    
  hosting community.


## Version history (last 3 releases)

### 1.2 — 2026-02-19

self-test feature to ensure your rig is in tip top shape
pricing updates
bulk pricing updates
history tab
fixed webhooks

### 1.1 — 2025-12-22

Fixed webhook errors that were preventing them from sending

### 1.0 — 2025-12-16

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 2026-07-23.*