Comparison

IRSignalTester vs Syscope

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IRSignalTester

This utility uses your phone's camera to visualize and measure infrared signals from remotes and LEDs. It helps you test remote functionality, compare signal strengths, and detect IR light sources in real-time. The app works offline and prioritizes user privacy.

Highlights
  • Real-time IR detection
  • Signal strength meter
  • Remote control testing
  • Guided signal health results
  • Offline functionality
  • Privacy-focused design
Features
Read full description

IR Signal Tester is a simple utility for testing infrared (IR) signals using your phone’s camera. Check if a remote control is working, compare signal strength between remotes, or detect infrared light from IR LEDs — all in real time. No ads, no fear-based claims, just a practical tool that works. What the app does Most infrared remotes and IR LEDs emit light that phone cameras can detect — even though your eyes can’t. IR Signal Tester makes this visible and measurable. Use it to: Test TV, AC, and media remotes Check if a remote is weak or failing Compare signal strength between remotes Detect infrared light sources and IR LEDs Features Live IR Detection Real-time camera view Clear “IR detected” indicator Signal strength meter (weak → strong) Remote Control Test Guided 3-second test Signal health results: Good, Weak, Intermittent, or No Signal Helpful explanations for each result Compare Remotes (Pro) Test two remotes side by side Compare signal strength and stability Quickly see which remote performs better Clean & Private Works completely offline No accounts, no tracking Camera access only, used solely for IR detection Who it’s for Anyone troubleshooting a TV or AC remote Technicians and installers DIYers and electronics hobbyists Anyone who wants a simple way to check infrared signals Important note IR Signal Tester detects infrared light signals, not hidden cameras or surveillance devices. Results depend on camera hardware and lighting conditions.

About

Syscope

Features
Read full description

Measure real speeds on your own network with iPerf3. Run upload and download tests between your iPhone or iPad and a Mac, PC, NAS, or another device running iPerf3 on your local network — or turn Syscope into an iPerf3 server and pair with a QR code. Is it the Wi-Fi or the internet? Did moving closer to the router make a difference? Syscope also brings device information and network checks together, so CPU, memory, storage, DNS, and connection details are all in one place. INCLUDED FOR FREE • Live CPU, memory, storage, battery, and thermal information, with device-wide and Syscope-specific readings clearly labeled. • A one-hour view of locally recorded metric history. • Connection details, local IP addresses, DNS lookup, and TCP connection checks. • A quick health check that pings your router, then checks DNS and HTTPS, to show whether a problem is more likely on your Wi-Fi or beyond it. Includes a shareable summary. • Bonjour discovery and manual iPerf3 server entry. • TCP upload and download tests: 10 seconds, one stream. • Foreground iPerf3 server mode and QR-code pairing on a local network. • A one-time Wi-Fi reading through an optional Shortcut, with suggestions for weak signal, low signal-to-noise ratio, or an older Wi-Fi standard. On supported iPhone and iPad models, it also tells you when enabling 160 MHz on your router could raise the link rate. • Widgets for quick access. SYSCOPE PRO — ONE-TIME PURCHASE • 24-hour and 7-day history views, configurable local retention, and metric export. • Repeated DNS measurements and detailed HTTPS connection timings. • UDP tests, parallel streams, custom duration or transfer size, and on-demand local-subnet discovery on a single TCP port. • Latency under load: Syscope pings your router before and during each iPerf3 test to reveal bufferbloat, the queueing delay that makes calls and games stutter. • Saved tests, labels, reusable profiles, reruns, and side-by-side comparisons. • Room-by-room comparison: tag each test with a location to compare speed, Wi-Fi signal, and latency across your home or office. • Continuous Wi-Fi readings and charts through the optional Shortcut. • PDF, JSON, and CSV test reports. Network identifiers are hidden by default. Pro is an optional, non-consumable in-app purchase, not a subscription. See the app for your local price. Restore purchases with the Apple Account used for the purchase. YOUR DATA STAYS WITH YOU No account, ads, or tracking. The Syscope developer does not collect your personal data. Metrics and saved tests are processed and stored on your device unless you choose to export or share them. Network diagnostics send traffic to the target you choose, which can see your source IP. Purchases are handled by Apple. Optional Wi-Fi name access may require iOS location permission; Syscope does not read or save location coordinates. BEFORE YOU TEST iPerf3 requires a reachable compatible server, such as another device on your network. Syscope does not provide a public speed-test server network. Throughput tests can use substantial traffic; cellular testing is disabled by default. Server mode runs only in the foreground on Wi-Fi or a wired local network. Syscope does not list other apps or show their individual memory use. It records metrics while in the foreground, not as an always-on background monitor. Requires iOS 17 or later. Available for iPhone and iPad, in English and Traditional Chinese.

Screenshots

IRSignalTester1 screens
Syscope4 screens

Verdict

The call

The clearest difference is update cadence: Syscope at every 5 days against IRSignalTester's every 2 months. Syscope also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IRSignalTester sells 1 one-off in-app purchase and Syscope sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

IRSignalTester ships an update every 2 months, Syscope every 5 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 7 level
IRSignalTester versus Syscope: the parameters behind the verdict, then further details
ParameterIRSignalTesterSyscope
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size6 MB6 MB
Age rating4+4+
DeveloperLimeLime Labs LLCCHUNG-HO LEE

In-app purchases

1 purchases

IRSignalTester

One-time1
  • Remove Ads$0.99
1 purchases

Syscope

One-time1
  • Syscope Pro$2.99

Questions

Is IRSignalTester free?
IRSignalTester is free to download, with in-app purchases available.
Is Syscope free?
Syscope is free to download, with in-app purchases available.
Do IRSignalTester or Syscope have ads?
Neither IRSignalTester nor Syscope shows ads.
Which is updated more often, IRSignalTester or Syscope?
IRSignalTester ships an update every 2 months, and Syscope every 5 days. Most recently, IRSignalTester was updated on October 13, 2026 and Syscope on October 14, 2026.

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