Top 8 WhatIsMyScreenSize.app Competitors & Alternatives in 2026
Updated onFind more companies/brands/products like WhatIsMyScreenSize.app. We've shortlisted leading alternatives and mapped their strengths, pricing, and go-to-market focus.
WhatIsMyScreenSize.app
A lightweight, browser-based tool that detects and displays a device's screen size, resolution, pixel density and related display details without sending data to a server.
Starts at $0
Competitors
#1 Est. 2024 • 1 employee • PrivateWhat Is My Screen Size?
Best for consumersA free web tool that automatically detects a device's screen dimensions, resolution, pixel density and basic display specifications.
Starts at $0
#2 Est. 2010 • 11-50 employees • Privatescreensiz.es
Best for power usersA free online reference that lists viewport sizes, pixel densities and physical dimensions for popular smartphones, tablets and monitors.
Starts at $0
#3 Est. 2025 • 2-10 employees • PrivateScreen Size Checker
Best for power usersA free online tool that detects a device's physical screen size, resolution, viewport, DPR, color depth, and basic system/browser info for developers, designers, and QA.
Starts at $0
#4 Est. 2024 • 2-10 employees • PrivateAspectRatio Tool
Best for power usersA free online suite of calculators and guides for computing, converting, and comparing image and video aspect ratios.
Starts at $0
- Est. 2025 • 1 employee • Private
ChampSignal
Best for SMBsGet the insights your competitors don't want you to have. ChampSignal is a competitive intelligence suite for early-stage B2B SaaS founders. Make sharper calls on pricing, positioning, and GTM.
Starts at $39 / month
Has a free trial
#5 Est. 2026 • 1 employee • PrivateWhat Is My Screen Resolution
Best for consumersA free web-based tool and informational site that instantly reports a visitor's browser-reported display resolution, DPR, viewport size, and related display information.
Starts at $0
#6 Est. 2024 • 1 employee • Privateterrific.tools
Best for consumersA web collection of free, browser-based utilities (800+ tools) plus a paid desktop app for local, privacy-first file conversions.
Starts at $25 / other
#7 Est. 2011 • 1 employee • PrivateBrowserLeaks
Best for power usersA free suite of web-based tools that test browser privacy, fingerprinting, IP/WebRTC leaks, TLS client information, and other browser/connection fingerprints.
Starts at $0
#8 Est. 2005 • 51-200 employees • PrivateDeviceAtlas
Best for enterprisesDeviceAtlas provides real-time device intelligence and identification (web, apps, TAC/IMEI) to help organisations optimise UX, advertising, analytics and fraud detection.
Starts at $399 / year
Has a free trial
Go Deeper
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Competitive Intelligence Report
22 pages of competitive intelligence. Built for founders who need sharp market context without hiring an analyst.
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Pricing Fully Exposed
See exactly what competitors charge, their tiers, trials, and guarantees.
Feature Matrix: Build vs Skip
Table stakes every competitor has. Differentiators only 1-2 have.
Reviews You Can Use
Real quotes from G2, Capterra, Trustpilot, and TrustRadius. Ready for your site, demos, and positioning.
10 Competitors Mapped
Direct, indirect, and alternatives. Positioning, ICP, and differentiators.
SEO Gaps Worth Targeting
Keywords they rank for, you don't. With "Quick Win" tags.
Their Best-Performing Ads
Top-performing Google & Meta ads. Landing page screenshots with CTAs.
15+ Data Sources
APIs, LLMs, scrapers. Data ChatGPT can't access.