Comparison

iEmulator vs Controller Tester FGC

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

Head to head
About

iEmulator

This utility helps gamers diagnose and optimize their Bluetooth game controllers on iOS and macOS. It offers detailed analysis of button presses, stick drift, latency, and haptic feedback, with customizable profiles for different games.

Highlights
  • Controller diagnostics
  • Stick drift analysis
  • Button press monitoring
  • Latency measurement
  • Haptic feedback testing
  • Customizable game profiles
Features
Read full description

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Controller Lab — Professional Gamepad Diagnostic Tool for iOS & macOS, Supports all ROM file formats. iEmulator is a standalone utility built for iOS/macOS gamers who want to test, calibrate, and optimize their Bluetooth game controllers. Whether your stick drifts, a button sticks, or you want to fine-tune dead zones before your next session, Controller Lab gives you clear, measurable answers—right on your devices. SUPPORTED CONTROLLERS • Xbox Wireless Controller (Xbox One / Series) • PlayStation DualSense & DualShock 4 • Nintendo Switch Pro Controller • MFi-certified Bluetooth gamepads • Siri Remote & micro gamepad (fallback) KEY FEATURES Dashboard See connection status, battery level, Bluetooth info, and switch between multiple connected controllers. Built-in pairing guide helps you connect your pad step by step. Button Tester Visual controller skin shows every button press in real time. Monitor trigger pressure (raw and processed values), view an event log, and measure app-layer input latency (average and p99). Stick Lab — Dead Zone & Drift Analysis • Live dual-stick canvas with dead zone sliders • 10-second quick drift check • 30-second full drift report with health score, standard deviation, and 16×16 heatmap • Shareable diagnostic report for troubleshooting or repair reference Rumble Lab Test left and right motors independently. Try preset haptic patterns, adjust intensity, and control DualSense light bar colors. Game Profiles Save per-game configurations including stick dead zones, trigger dead zones, and haptic presets. Apply profiles instantly, duplicate, edit, or back up your settings. WHY CONTROLLER LAB? Unlike basic button testers, Controller Lab combines drift diagnosis, latency measurement, haptic testing, and profile management in one focused tool—designed specifically for the iOS GameController framework. No games are emulated. No ROMs are loaded. No copyrighted game content is involved. The app only reads input from connected controllers and helps you understand their behavior. REQUIREMENTS • iOS 18 or later • A Bluetooth game controller paired via system Settings

About

Controller Tester FGC

Features
Read full description

For gamers that care about their inputs. Connect a pad, stick, or leverless and see exactly what iOS is reading from it. Every button, every analog stick position, every trigger value, in real time. Run the drift monitor before a session to catch a stick that's misbehaving. Pop open the raw input dump when something feels off and you want the actual numbers your controller is sending to the system. The built-in reaction test reports results in both milliseconds and frames — the standard measurement unit for fighting games that run at 60 FPS. Use it to benchmark your reaction or to compare response times between different controllers or buttons. On ProMotion displays (iPad Pro, iPhone 13 Pro and later) the app samples inputs at up to 120 Hz, so the measurement itself runs as fast as the hardware allows. Frame values still display against the 60 fps fighting-game standard so they're comparable across devices. Button labels match what's actually on your controller. Plug in a DualShock or DualSense and you'll see ×, ○, □, △. Plug in a Switch Pro Controller and you'll see A, B, X, Y in their real Nintendo positions. Xbox and generic pads stay with A, B, X, Y. No more squinting at "Button 12" wondering which physical button it maps to. Tested controllers include the PlayStation DualSense, DualSense Edge, and DualShock 4; the Nintendo Switch Pro Controller; the 8BitDo Ultimate (2.4G); and generic Xinput and Bluetooth gamepads. Anything iOS recognizes as an Extended Gamepad through Apple's GameController framework will work. Keyboards and mice are supported too. When no controller is connected, the buttons panel surfaces live key presses and mouse-button states — useful for arcade controllers, fightsticks, and boards that pair as a keyboard rather than as a gamepad. Note that some controller will swap the left analog stick and the D-pad. If you see this, tap the L↔D toggle above the on-screen D-pad to swap them back. iPhone users typically don't see this. If a controller doesn't show up automatically, try a wired USB connection. iOS often recognizes over USB what fails over Bluetooth. If your controller has a mode switch (most FGC boards do), try Nintendo Switch, PC, or XInput mode; those modes have the highest compatibility with iOS. Not compatible with Brook Wingman FGC or FGC 2. App is fully offline, ad-free, and does not collect data.

Screenshots

iEmulator4 screens
Controller Tester FGC2 screens

Verdict

The call

The clearest difference is in-app purchases: Controller Tester FGC at none against iEmulator's 3. Controller Tester FGC also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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. iEmulator sells 3 in-app purchases, starting at $2.49 per month. Controller Tester FGC asks for nothing beyond the download.

UpkeepUpdate frequency

iEmulator ships an update weekly, Controller Tester FGC every 5 days. Both last shipped on October 17, 2026.

Scorecard2 real differences · 7 level
iEmulator versus Controller Tester FGC: the parameters behind the verdict, then further details
ParameteriEmulatorController Tester FGC
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size1.0 GB4 MB
Age rating4+4+
DeveloperWeigan Technology (Shenzhen) Co., Ltd.Aaron Lowe

In-app purchases

3 purchases

iEmulator

Subscriptions2
  • Upgrade to Monthly VIP3 Days trial$2.491 Month
  • Upgrade to Yearly VIP7 Days trial$12.991 Year
One-time1
  • Upgrade to Lifetime VIP$29.99
None

Controller Tester FGC

No in-app purchases

Questions

Is iEmulator free?
iEmulator is free to download, with in-app purchases available.
Is Controller Tester FGC free?
Controller Tester FGC is free to download, with no in-app purchases.
Do iEmulator or Controller Tester FGC have ads?
iEmulator shows ads; Controller Tester FGC does not.
Which is updated more often, iEmulator or Controller Tester FGC?
iEmulator ships an update weekly, and Controller Tester FGC every 5 days. Most recently, iEmulator was updated on October 17, 2026 and Controller Tester FGC on October 17, 2026.

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