Comparison

TestCard ProHD 4k vs HomeWatch

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

Head to head
About

TestCard ProHD 4k

Calibrate your home theater's audio and visual elements with a suite of professional test cards. Diagnose lip-sync issues and optimize picture settings like contrast, brightness, color, motion, and sharpness. Includes an SPL meter for sound setup.

Highlights
  • Screen calibration for contrast, brightness, and color
  • Motion and sharpness test cards
  • SPL (decibel) meter for surround sound setup
  • Audio visual synchronization test for lip-sync
  • Instructions displayed on device while test card shows on external display
  • Compatibility testing before in-app purchase
Features
Read full description

Professionals use test cards to calibrate broadcast systems and cinemas use them too, so why shouldn’t home cinemas or theatres use them too? TestCard ProHD is the innovative means to calibrating your screen to ensure a consistent and correct representation of display media. (In-App purchase required after ensuring this will work on your TV / Display.) ** In-App purchase required after compatibility testing for full functionality. See below for why. ** Additionally, TestCard ProHD also now includes an SPL or “decibel” meter to assist with setting up surround sound sources. It’s a solution for calibrating both audio and visual elements within the home that can also be used in professional environments. Newest version now includes a Audio Visual Synchronisation test to help diagnose lip-sync issues. TestCard ProHD is the application for setting up a modern High Definition TV or projector. We’ve grouped together some common types of test cards as well as some new ones that will help set up home theaters to a professional standard. Adjusting the contrast and brightness is essential to ensuring that you get the best from your TV or projector, but color is vitally important too. Further, test cards for motion and sharpness tweak more performance from your screen. Using these test cards and their instructions you’ll be able to tweak to get the best you can without the expensive of a dedicated calibration service. Only by applying test cards in a controlled manner will you to get the best from your home theater and TestCard ProHD is the right tool, taking advantage of the unique abilities of the iPhone and iPad. Within modern screens there are many techniques used to smooth motion. These can also have a detrimental effect, yet correctly set some do improve the picture. Having a repeating pattern to assist the setting of motion controls is essential. TestCard ProHD has test cards specifically design for motion testing on a screen. Further, each test card has an information section to give you concise information and instruction on how to use it. The more that can be gained form each test card, the more information is provided. For ease of use the instruction are displayed on the iPhone / iPad while simultaneously displaying the test card on the external display. Access to the test cards on the external display, Virtual Blue Filter and the SPL meter are only available after an In-App purchase. Using the default test screen please ensure that you have tested your device with the media adaptor, or Apple TV, on the external display before purchasing access. This is to allow you to verify that your system is fully compatible before purchase, and to share a single purchase with your iOS devices and Apple TV. TestCard ProHD can be used with Apple TV V2, V3, V4 or V5 / 4k, or with the Apple media interfaces for HDMI or VGA. Apple TV V2 and V3 can be used as the external display interface using AirPlay Mirroring. Simply switch on AirPlay on the iPhone or iPad and select Mirroring. See below for instructions on AirPlay Mirroring. For HDMI or VGA Apple produces two types of media interface. While we’ve included some test cards for VGA / computer calibration, the home cinema user who is looking for 1080p compatibility should opt for the HDMI based media interface. Apple TV version of the app is also available. Once access to the testcards is bought on either iOS or Apple TV app, you can have access on the other type of device without additional purchase. The In-App-Purchase is shared between all compatible devices registered on your Apple ID. Apple TV AirPlay Instructions: To enable AirPlay Mirroring connect your iOS device and your Apple TV to the same Wi-Fi network. For iOS 7 swipe up from the bottom of your screen to access Control Center. Tap on the AirPlay icon, select your Apple TV and switch on Mirroring. More details can be found on Apple’s support page http://support.apple.com/kb/ht5209

About

HomeWatch

Monitor and control your HomeKit devices with a glanceable status display. This app offers customizable views for rooms, scenes, and individual devices across Apple platforms, including widgets and menu bar items.

Highlights
  • Glanceable room status with color-coded indicators
  • Control scenes and devices within rooms
  • View camera feeds, weather, and website content
  • Customizable home and lock-screen widgets
  • Menu bar items for Mac with real-time updates
  • Extensive interface customization options
Features
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I made an app for my Apple Watch to see a glanceable status of our home and to control our HomeKit devices. It worked so well on the watch, that I expanded it to a dashboard app for all our Apple devices. I have now added a configuration interface to make it compatible with any HomeKit enabled home setup. I hope some of you will find it useful. HOME VIEW The circle / grid with icons on the home view shows a color coded status of the rooms of the home: red when a door is open, yellow when a window is open, orange when the heating is on, cyan when lights are on and green when nothing is on. On the iPhone, iPad, tvOS and Mac the app also shows the time, date, cameras, feeds, events, reminders, a website and weather information. When there is rain, it will show a rain graph. ROOM VIEWS When a room is selected, the circle layout will show the scenes you can control in that room. The grid layout also shows the devices that can be controlled in that room. Additionally the room view has an information section. To the right it can show any characteristics from your devices. Below is a detail view that can show a camera view, a website, a temperature, humidity and climate history graphs. WIDGETS Fully customisable lock-screen and home-screen widgets. Tap / Clicking a widget item to go directly to a room view, execute a scene or launch any url-scheme. Customisable complications on the Watch can have actions to go directly to a room view and execute any scene. MENU BAR ITEMS On the Mac any HomeKit characteristic can be added to the menu bar and is kept up to date. CUSTOMISATION The interface can be fully customised. The user can add their own background images and icons from the photo library. Customise gradient overlays, icons, fonts, colours and more. Make it your own…

Screenshots

TestCard ProHD 4k4 screens
HomeWatch4 screens

Verdict

The call

The clearest difference is rating: HomeWatch at 4.8 against TestCard ProHD 4k's 3.0. HomeWatch also leads on in-app purchases (none vs 1) and review sentiment (60% vs 36%). On price, ratings volume and ads 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. TestCard ProHD 4k sells 1 one-off in-app purchase. HomeWatch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HomeWatch holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 36% of TestCard ProHD 4k's written reviews are positive against 60% of HomeWatch's.

UpkeepUpdate frequency

TestCard ProHD 4k ships an update every 6 months, HomeWatch every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
TestCard ProHD 4k versus HomeWatch: the parameters behind the verdict, then further details
ParameterTestCard ProHD 4kHomeWatch
PriceFreeFree
Rating3.0 (9 ratings)4.8 (4 ratings) — better
Positive reviews36.4% of reviews60.0% of reviews — better
Number of ratings9 — better4
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple TViPhone, iPad, iPod, Mac, Apple TV, Apple Watch — better
Requires iOS17.615.6 — better
Further details — not scored
Size60 MB61 MB
Age rating4+17+
DeveloperJ.S. Technology Ltd.Peter Vogels

Customer experience

TestCard ProHD 4k

All ratings8 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews11 reviews
Positive36.4%
Neutral0.0%
Negative63.6%

HomeWatch

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

In-app purchases

1 purchases

TestCard ProHD 4k

One-time1
  • Test Cards$4.99
None

HomeWatch

No in-app purchases

Questions

Is TestCard ProHD 4k free?
TestCard ProHD 4k is free to download, with in-app purchases available.
Is HomeWatch free?
HomeWatch is free to download, with no in-app purchases.
Which has better reviews, TestCard ProHD 4k or HomeWatch?
HomeWatch is rated higher. TestCard ProHD 4k averages 3.0 out of 5 from 9 ratings, while HomeWatch averages 4.8 from 4 ratings.
Do TestCard ProHD 4k or HomeWatch have ads?
Neither TestCard ProHD 4k nor HomeWatch shows ads.
Which is updated more often, TestCard ProHD 4k or HomeWatch?
TestCard ProHD 4k ships an update every 6 months, and HomeWatch every 2 months. Most recently, TestCard ProHD 4k was updated on November 1, 2026 and HomeWatch on November 3, 2026.

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