Comparison

Image Sync vs GRImageViewer

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

Head to head
About

Image Sync

Control compatible cameras remotely, view live feeds, and transfer images directly to your mobile device. Upload photos to social media or copy them for safekeeping. Offers full camera control for enhanced shooting experiences.

Highlights
  • Remote shooting with live view
  • View and copy images to mobile
  • Upload images to social media
  • Control camera settings remotely
  • Transfer photos wirelessly
Read full description

Paired with a RICOH IMAGING's compatible camera, "Image Sync" application enables your mobile device to remotely shoot, view and copy images and upload them to SNS sites. 【Feature】 1.View and Copy Images You can view images taken with your camera and copy them to your mobile device. You can also upload them to SNS sites. 2.Remote Shooting You can monitor the live view image on your mobile device. Various camera operations including EV compensation and shutter release are possible from a mobile device. 【Supported Digital Cameras】 PENTAX K-1 PENTAX K-1 Mark II PENTAX K-3 Mark III PENTAX KP PENTAX KF PENTAX K-S2 PENTAX K-70 RICOH GR II RICOH GR III RICOH GR IIIx RICOH WG-M2 RICOH G900SE RICOH G900SE II 【Supported OS】 iOS 16 – 18, iOS 26 * Operation is not guaranteed on all devices. * Operation is confirmed on these devices as of May 2026, but this information may be changed at any time in the future without prior notice. 【Note】 For detail about ImageSync, refer to the website. http://www.ricoh-imaging.co.jp/english/products/app/image-sync2/ RICOH WG-M1 is not supported by Image Sync. For details, refer to the the website; http://www.ricoh-imaging.co.jp/english/products/wg-m1/

About

GRImageViewer

Easily browse, view, and transfer photos from your Ricoh GR III/x camera wirelessly. This app offers remote capture, metadata viewing, and efficient photo management with features like grid layout and date sorting.

Highlights
  • Browse GR III/x photos via WiFi
  • Remote camera capture
  • Grid layout for photo browsing
  • Transfer photos to device
  • View photo metadata
  • Geotagging support
Read full description

A simple yet handy app made for all Ricoh GR III/x lovers (myself included). Features: - Browse photos of your GR III/x camera via WiFi. - Remote capture supported - Beautiful grid layout for photo browsing. - View photos by date. - Transfer photo or a collection of photos from your GR III to your device. - Multitask photo transferring (4 downloads simultaneously). - View photo meta data: iso, aperture, file size, etc. - Show new photo(s) since last time connected to the same camera. - Geotagging feature (You will need the latest camera firmware). - OCR(optical character recognition) to capture SSID and password. - Change app icon feature. More features coming in the future, stay tuned!

Screenshots

Image Sync4 screens
GRImageViewer4 screens

Verdict

The call

The clearest difference is rating: GRImageViewer at 3.4 against Image Sync's 1.8. GRImageViewer also leads on review sentiment (52% vs 13%) and update cadence (every 3 weeks vs every 3 months). Image Sync's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, 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. GRImageViewer sells 1 one-off in-app purchase. Image Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GRImageViewer holds the better App Store score, 3.4 against 1.8. Both are backed by a comparable volume of ratings — 197 and 42 respectively. Written reviews point the same way: 13% of Image Sync's written reviews are positive against 52% of GRImageViewer's.

UpkeepUpdate frequency

Image Sync ships an update every 3 months, GRImageViewer every 3 weeks. The most recent releases landed on September 23, 2026 and August 23, 2026 respectively.

Scorecard7 real differences · 3 level
Image Sync versus GRImageViewer: the parameters behind the verdict, then further details
ParameterImage SyncGRImageViewer
PriceFreeFree
Rating1.8 (197 ratings)3.4 (42 ratings) — better
Positive reviews13.1% of reviews51.9% of reviews — better
Number of ratings197 — better42
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size25 MB26 MB
Age rating4+4+
DeveloperRICOH IMAGING COMPANY,LTDPin Chih Lin

Customer experience

Image Sync

All ratings197 ratings
Positive16.8%
Neutral6.6%
Negative76.6%
Written reviews601 reviews
Positive13.1%
Neutral9.0%
Negative77.9%

GRImageViewer

All ratings41 ratings
Positive61.0%
Neutral2.4%
Negative36.6%
Written reviews27 reviews
Positive51.9%
Neutral3.7%
Negative44.4%

Bugs and requests

Image Sync

Reported bugs

4 issues
  • App doesn't recognize camera's WiFi
  • Bluetooth connection not working
  • Fails to transfer RAW images
  • Crashes when transferring photos

Requested features

4 requests
  • Add landscape mode for iPad
  • Improve file management and cloud integration
  • Add self-timer feature
  • Provide firmware update capability

GRImageViewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Image Sync

No in-app purchases

1 purchases

GRImageViewer

One-time1
  • Remove Ads$4.99

Questions

Is Image Sync free?
Image Sync is free to download, with no in-app purchases.
Is GRImageViewer free?
GRImageViewer is free to download, with in-app purchases available.
Which has better reviews, Image Sync or GRImageViewer?
GRImageViewer is rated higher. Image Sync averages 1.8 out of 5 from 197 ratings, while GRImageViewer averages 3.4 from 42 ratings.
Do Image Sync or GRImageViewer have ads?
GRImageViewer shows ads; Image Sync does not.
Which is updated more often, Image Sync or GRImageViewer?
Image Sync ships an update every 3 months, and GRImageViewer every 3 weeks. Most recently, Image Sync was updated on September 23, 2026 and GRImageViewer on August 23, 2026.

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