Comparison

TestCard ProHD 4k vs File Explorer & Player

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

File Explorer & Player

Access and stream files from your Mac wirelessly on your iPhone or iPad. View photos, documents, and play videos directly from your computer. Transfer files and even use your iOS device as a portable drive.

Highlights
  • Stream video from Mac
  • View photos and documents
  • Transfer files to iOS
  • Use iOS as a drive
  • Wireless Mac access
Features
Read full description

Turn your iPhone or iPad into the wireless flash drive for your Mac. Have full access to your Mac files – use your iOS device to stream videos, view photos and documents, from anywhere within your home. AT A GLANCE - Stream any video directly from your Mac; - View photos or documents stored on your Mac; - Transfer files between your Mac and your iOS device; - Store anything on your iOS device and take it with you on the go; - Mount your iOS device as drive on your Mac or Windows machine using WebDAV; - Use the Personal Hotspot of your iOS device to control your Mac when you don’t have access to other networks. SYSTEM REQUIREMENTS - Mac with macOS 10.10 or above and Helper app installed; - iPhone, iPad or iPod touch with iOS 11 or above; - Shared wireless network connection between your computer and iOS device. TERMS OF USE https://cherpake.com/tos Ratings are like gold for indie developers like me, please give the app a quick rating on the App Store.

Screenshots

TestCard ProHD 4k4 screens
File Explorer & Player4 screens

Verdict

The call

The clearest difference is rating: File Explorer & Player at 4.6 against TestCard ProHD 4k's 3.0. File Explorer & Player also leads on review sentiment (78% vs 36%) and update cadence (fortnightly vs every 6 months). TestCard ProHD 4k's advantage is ads (none vs shown). On price, in-app purchases, monetization model 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. TestCard ProHD 4k sells 1 one-off in-app purchase and File Explorer & Player sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

File Explorer & Player holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: File Explorer & Player has 122 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 36% of TestCard ProHD 4k's written reviews are positive against 78% of File Explorer & Player's.

UpkeepUpdate frequency

TestCard ProHD 4k ships an update every 6 months, File Explorer & Player fortnightly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
TestCard ProHD 4k versus File Explorer & Player: the parameters behind the verdict, then further details
ParameterTestCard ProHD 4kFile Explorer & Player
PriceFreeFree
Rating3.0 (9 ratings)4.6 (122 ratings) — better
Positive reviews36.4% of reviews78.3% of reviews — better
Number of ratings9122 — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple TViPhone, iPad, Apple TV
Requires iOS17.6 — better18.0
Further details — not scored
Size60 MB85 MB
Age rating4+4+
DeveloperJ.S. Technology Ltd.Remote Sunrise LTD

Customer experience

TestCard ProHD 4k

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

File Explorer & Player

All ratings124 ratings
Positive90.3%
Neutral3.2%
Negative6.5%
Written reviews46 reviews
Positive78.3%
Neutral2.2%
Negative19.6%

Bugs and requests

TestCard ProHD 4k

Not enough reviews yet to summarise bugs or requests.

File Explorer & Player

Reported bugs

3 issues
  • Paid version download issues reported
  • Free version does nothing
  • Poor support response to feature inquiries

Requested features

5 requests
  • Add NAS support
  • Enable external access (remote access from outside home network)
  • Add Chinese language option
  • Allow file renaming
  • Improve PC compatibility

In-app purchases

1 purchases

TestCard ProHD 4k

One-time1
  • Test Cards$4.99
4 purchases

File Explorer & Player

Subscriptions2
  • Upgrade to Pro Version - 1M$1.991 Month
  • Upgrade to Pro Version1 Month trial$9.991 Year
One-time2
  • Remove Ads$19.99
  • Upgrade to PRO$19.99

Questions

Is TestCard ProHD 4k free?
TestCard ProHD 4k is free to download, with in-app purchases available.
Is File Explorer & Player free?
File Explorer & Player is free to download, with in-app purchases available.
Which has better reviews, TestCard ProHD 4k or File Explorer & Player?
File Explorer & Player is rated higher. TestCard ProHD 4k averages 3.0 out of 5 from 9 ratings, while File Explorer & Player averages 4.6 from 122 ratings.
Do TestCard ProHD 4k or File Explorer & Player have ads?
File Explorer & Player shows ads; TestCard ProHD 4k does not.
Which is updated more often, TestCard ProHD 4k or File Explorer & Player?
TestCard ProHD 4k ships an update every 6 months, and File Explorer & Player fortnightly. Most recently, TestCard ProHD 4k was updated on November 1, 2026 and File Explorer & Player on November 6, 2026.

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