https://open-gpt.app/ VS SubnetLens

Which is more popular?

Based on our record, SubnetLens seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions: 0 vs 1

Base details

Website, pricing, platforms and company facts side by side.

	https://open-gpt.app/	SubnetLens
Website	open-gpt.app	subnetlens.com
Pricing	—	Freemium $79 / One-off (Pro Version) Official pricing
Platforms	—	Windows
Company	—	Startup from the United Kingdom · 1 - 9 employees · 2026
Listed in	—	Network & Admin Network Monitoring Networking Port Scanners Sysadmin Tools +2

About https://open-gpt.app/ and SubnetLens

In their own words, as submitted to SaaSHub.

https://open-gpt.app/

SubnetLens

No description of https://open-gpt.app/ yet.

Subnetlens is a Windows desktop network scanner for IT pros, sysadmins, MSPs, and home-labbers everything runs 100% locally, with no cloud and no telemetry. Open it and within seconds it discovers every device on your network, names each one and works out what it is (it recognizes 1,451 device...

Features and specs

What each product offers, as listed by its team.

https://open-gpt.app/ 5 features

SubnetLens 12 features

Accessible AI Chat Interface
Provides a user-friendly web-based interface for interacting with GPT-based AI models without needing to set up API access or coding knowledge.
No Installation Required
Being a web application, it can be used directly from a browser without downloading or installing any software.
Potentially Free or Low-Cost Access
Many GPT wrapper sites like this offer free tiers or lower-cost access compared to official API pricing, making AI chat more accessible to casual users.
Quick Setup
Users can typically start chatting almost immediately after visiting the site, with minimal account creation or configuration steps.
Cross-Platform Compatibility
Since it runs in a browser, it can be accessed from various devices including desktops, tablets, and smartphones without platform-specific versions.

Possible disadvantages

Uncertain Reliability
Third-party GPT wrapper websites often depend on underlying API access that can be unstable, rate-limited, or discontinued without notice, affecting consistent availability.
Data Privacy Concerns
Using an unofficial third-party service to process conversations raises questions about how user data and conversation history are stored, used, or shared.
Limited Transparency
It may be unclear which underlying AI model version is being used, how up-to-date it is, or what modifications have been made to the base model's behavior.
Potential Hidden Costs or Ads
Free-to-use AI wrapper sites often monetize through ads, premium upsells, or data collection, which may not be clearly disclosed to users upfront.
Lack of Official Support
Unlike official AI platforms, unofficial wrapper sites may lack dedicated customer support, regular updates, or accountability if issues arise.

Platform
Windows 10 / 11 (desktop)
Pricing
Free tier + $79 one-time Pro — no subscription
Data privacy
100% local — no cloud, no telemetry, no account
Device identification
Names every device — 1,451-type classifier
Live monitoring
Continuous mDNS/SSDP (Live Mode)
Port history
Per-device, with "new service" alerts
Topology map
Interactive, multiple layouts + export
Built-in IT tools
26 (ping, traceroute, MTR, DNS, WHOIS, TLS…)
Credential vault
AES-256-GCM, stored on-device
Risk scoring
Per-device + deep security scans
Integrations
Prometheus, webhooks (Slack/Discord/Teams), SNMP
Scheduled scans
Cron + interval, with webhook alerts

Analysis

An editorial look at what each product does well and who it suits.

https://open-gpt.app/

SubnetLens

Overall verdict

I don't have verified, up-to-date information about open-gpt.app, and I'm unable to browse the internet to check its current status, reputation, or legitimacy. I cannot confidently vouch for or against this specific product/service.

Why this product is good

I lack real-time access to verify this website's current content, reputation, or user reviews
Domain names and their associated services can change ownership and purpose over time
Without verification, I cannot confirm if this is a legitimate service, its features, or its safety
There are many similarly-named AI tools of varying quality and trustworthiness, making specific verification important

Recommended for

Before using this site, research current user reviews on trusted platforms
Check the site's SSL certificate, privacy policy, and terms of service
Look for verified information about the company or developers behind it
Consider well-established alternatives like ChatGPT (OpenAI), Claude (Anthropic), or Gemini (Google) if you need reliable AI assistance
Exercise caution with any site requesting payment or personal information without clear verification of legitimacy

Overall verdict

I don't have verified information about SubnetLens (subnetlens.com) in my knowledge base, so I can't confirm its features, quality, or reputation with confidence. It may be a newer or niche tool that isn't well-documented in publicly available sources I was trained on. I'd recommend checking recent user reviews, testing any free tier or trial, and verifying claims directly on their website before committing.

Why this product is good

Insufficient verified data available to confirm specific strengths or unique selling points of this product
Unable to validate claims about accuracy, pricing, or performance without firsthand or well-documented third-party sources
Recommend checking current reviews on platforms like Trustpilot, G2, or Reddit for real user experiences
Look for transparency about the company, its team, and how the tool sources or processes network/subnet data

Recommended for

Users who want to independently verify tool credibility before adoption
Network administrators or IT professionals researching subnet calculation or management tools who should compare multiple options
Anyone willing to test a free trial or demo version before making a purchasing decision

Questions & Answers

As answered by people managing https://open-gpt.app/ and SubnetLens.

Who are some of the biggest customers of your product?

SubnetLens's answer:

System admins, Network or IT Professionas

Which are the primary technologies used for building your product?

SubnetLens's answer:

Electron + React — the desktop app
Node.js — the scanning engine and 26 diagnostic tools
Vite + Tailwind CSS — the UI
vis-network — the interactive topology map
A privacy-first Cloudflare Workers backend for licensing (no user data stored)

What's the story behind your product?

SubnetLens's answer:

SubnetLens started from a simple frustration: the free network scanners are basic and barely maintained, while the capable tools are either cloud subscriptions or cost thousands a year per site. There wasn't a modern, local-first option that just told you what's on your network and watched it for changes — without sending your data to someone else's cloud. So we built one: a fast, visual Windows scanner that names every device, tracks how your network changes over time, and keeps 100% of the data on your machine. One-time price, no telemetry.

How would you describe the primary audience of your product?

SubnetLens's answer:

SMB and solo IT admins managing a network without a big budget
Sysadmins, MSPs and IT contractors doing discovery and audits
Home-lab and self-hosting enthusiasts who want to see and monitor every device Anyone who finds Advanced IP Scanner too basic but won't pay $1,000/year for an enterprise SaaS tool.

Why should a person choose your product over its competitors?

SubnetLens's answer:

vs Advanced IP Scanner / Angry IP Scanner — free but basic and barely updated. SubnetLens adds live monitoring, port history, risk scoring, a credential vault and a modern UI.
vs Fing Desktop — no subscription. SubnetLens is one-time $79 and tracks ports per device, not just devices.
vs Auvik / Domotz / Lansweeper — no cloud dependency and no $500–1,000/year/site bill. Your data stays local and you pay once. More capable than the free tools, far cheaper than the enterprise ones, and everything stays on your machine.

What makes your product unique?

SubnetLens's answer:

A few things no other consumer-priced scanner combines: - It names and identifies every device — recognizes 1,451 device types by hostname, so you see "Canon G5000 printer" or "Synology NAS," not just an IP. - Per-device port history — records the exact moment a new service opens on a device, so you catch a server that suddenly started running RDP. Enterprise tools charge thousands a year for this. - Live Mode — continuous mDNS/SSDP listening catches devices the moment they appear, between scans. - 100% local — no cloud, no telemetry, no account. Your scan data never leaves your machine. - One one-time price, with an encrypted credential vault, 26 IT tools, scheduling, SNMP, IPAM and a Prometheus endpoint all bundled in.

User comments

Share your experience with using https://open-gpt.app/ and SubnetLens. For example, how are they different and which one is better?

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

https://open-gpt.app/ 0 mentions

SubnetLens 1 mention

Tracking https://open-gpt.app/ since Jul 2023.

Ask HN: What are your personal websites?
My new application https://subnetlens.com/ What do you guys think of my work? - Source: Hacker News / 3 months ago

Compare https://open-gpt.app/ VS SubnetLens and see what are their differences

Base details

About https://open-gpt.app/ and SubnetLens

Features and specs

Analysis

Questions & Answers

Who are some of the biggest customers of your product?

Which are the primary technologies used for building your product?

What's the story behind your product?

How would you describe the primary audience of your product?

Why should a person choose your product over its competitors?

What makes your product unique?

User comments

Social recommendations and mentions