Comparison

Viidure vs GrayBox

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

Head to head
About

Viidure

Connect to your dash cam or sports camera via WiFi to access and process photos and videos. This app facilitates resource management for various use cases like forensics and sharing.

Highlights
  • Connect to dash cams and sports cameras
  • Access photos and videos via WiFi
  • Process media resources
  • Support for multiple hardware solutions
  • Facilitates forensics and sharing
Features
Read full description

Viidure is a client software for driving recorders, sports cameras and other devices that support multiple hardware solutions. It allows users to obtain pictures and video resources taken by the device through the device’s WiFi network, and perform certain processing to meet the user’s resource requirements. Use scenarios, such as forensics, sharing, etc.

About

GrayBox

This app transforms your phone into an interruption-proof dash cam and private vault. It records continuously, even through calls or app switches, and stores footage securely on your device with passcode protection. Optional Pro features enhance driving and security.

Highlights
  • Interruption-proof recording
  • Private, passcode-protected vault
  • Dash cam functionality
  • Dual camera recording
  • Lock Mode for continuous recording
  • Optional Face ID and passcode protection
  • No account or cloud storage
Features
Read full description

GrayBox turns the camera you already carry into a dash cam with a private photo safe. No wires, no SD card, no account. Now on iPhone and iPad. Open the app and you're recording in about a second. Tap for a photo, hold for video, slide left to keep recording hands free. Your music keeps playing while you record. Everything goes straight to your private library, never your Photos app. If a call, an app switch, or a dead battery interrupts you, GrayBox keeps everything up to that moment, picks back up when you return, and stitches it into one clip with every interval time-stamped. A DASH CAM WITHOUT THE WIRES • Mount your phone and drive • Car Mode (Pro) is one tap from the camera and starts recording with your saved driving settings • Speed in mph or km/h and the time, burned right into your footage • Your music keeps playing the whole drive • Dual Cam records the road and the cabin at the same time, split screen or picture in picture (iPhone) • Swap the main camera without cutting the recording • A large dim clock while the screen is dimmed, so the phone stays mounted • Your location is only used to draw your speed and is never stored FOR THE MOMENTS YOU NEED ON RECORD • A traffic stop, a fender bender, a heated moment, anything you might need proof of • Lock Mode dims the screen and freezes the controls while recording continues • Unlocking takes a deliberate press and hold, 2 to 10 seconds, your choice • Volume buttons won't stop it either A PRIVATE PLACE FOR PHOTOS AND DOCUMENTS • Keep photos of your ID, insurance card, receipts, and paperwork out of your camera roll • Albums, favorites, and Recently Deleted (kept for an hour, a day, or a month) • Select photos by dragging in any direction • Import existing photos and videos, export anything, anytime A LIBRARY ONLY YOU CAN OPEN • Your passcode gives nothing away, not even its length • Optional Face ID • Optional self-erase after too many wrong guesses, and you pick the number • After a run of wrong guesses, entry pauses for a few minutes so nobody can rush the limit THE CAMERA • Photos and video up to 4K • Flash, front and rear cameras, pinch to zoom from 0.5x to 10x • Turn the mic off for video only • Optional blurred hold instead of jump cuts, so clip length matches the clock PRIVATE BY DESIGN • No accounts, no cloud, no ads, no analytics • Nothing about you is ever collected • Your library is excluded from backups and never appears in Photos unless you export it GRAYBOX PRO One purchase, yours forever. No subscription. Less than a dash cam memory card. • Car Mode with speed and clock • Locked Albums: an album with its own passcode and optional self-erase • Security log of every wrong guess and erase, time-stamped, and it survives the erase • Instant Lock: flip your phone face down or triple tap • Pattern and full keyboard passcodes • Timestamp burned into your footage • Eight themes The $100 dash cam on the shelf? You're already holding a better one. Just add a mount.

Screenshots

Viidure4 screens
GrayBox4 screens

Verdict

The call

The clearest difference is rating: GrayBox at 5.0 against Viidure's 4.4. GrayBox also leads on update cadence (every 3 days vs monthly). Viidure's advantage is ratings volume (13K vs 1) and chart position (#91 vs unranked). On price, ads, in-app purchases and monetization model 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. Viidure sells 6 one-off in-app purchases and GrayBox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

GrayBox holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Viidure has 13K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Viidure ships an update monthly, GrayBox every 3 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 6 level
Viidure versus GrayBox: the parameters behind the verdict, then further details
ParameterViidureGrayBox
PriceFreeFree
Rating4.4 (13K ratings)5.0 (1 ratings) — better
Positive reviews25.6% of reviews—
Number of ratings13K — better1
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#91 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size197 MB5 MB
Age rating4+4+
DeveloperShenzhen Xiaozhen Technology Co.,Ltd.Nolan Mayoss

Customer experience

Viidure

All ratings12,662 ratings
Positive84.4%
Neutral2.5%
Negative13.1%
Written reviews1,685 reviews
Positive25.6%
Neutral8.1%
Negative66.4%

GrayBox

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Viidure

Reported bugs

3 issues
  • Camera not recognized by app
  • Videos not saving properly
  • App freezes and becomes unresponsive

Requested features

4 requests
  • Add option to view rear camera
  • Improve video download speeds
  • Allow deletion of individual videos
  • Provide instructions in multiple languages

GrayBox

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Viidure

One-time6
  • 1 year$7.90
  • 1 Year$9.90
  • 2 years$12.90
Show 3 more
  • 2 Years$15.90
  • Permanent$27.90
  • Perpetual$34.90
1 purchases

GrayBox

One-time1
  • GrayBox Pro$2.99

Questions

Is Viidure free?
Viidure is free to download, with in-app purchases available.
Is GrayBox free?
GrayBox is free to download, with in-app purchases available.
Which has better reviews, Viidure or GrayBox?
GrayBox is rated higher. Viidure averages 4.4 out of 5 from 13K ratings, while GrayBox averages 5.0 from 1 ratings.
Do Viidure or GrayBox have ads?
Neither Viidure nor GrayBox shows ads.
Which is updated more often, Viidure or GrayBox?
Viidure ships an update monthly, and GrayBox every 3 days. Most recently, Viidure was updated on November 3, 2026 and GrayBox on October 24, 2026.

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