GRImageViewer vs Pentax Image Sender
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Browse GR III/x photos via WiFi
- Remote camera capture
- Grid layout for photo browsing
- Transfer photos to device
- View photo metadata
- Geotagging support
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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!
Pentax Image Sender
Wirelessly transfer photos and videos from compatible Ricoh and Pentax cameras to your mobile device. Supports a range of popular camera models for quick and easy file sharing.
- Wireless image transfer
- Supports Ricoh cameras
- Supports Pentax cameras
- File sharing for K-1, K-3 Mk III, GR III models
- Direct transfer to mobile device
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Wifi image file transfer app for Ricoh and Pentax Camera Support : Pentax K-1, K-1 Mk II, K-3 MK III, KP, K-S2, K-70, Ricoh GR II, GR III,GR IIIX
Screenshots
Verdict
The clearest difference is review sentiment: Pentax Image Sender at 100% against GRImageViewer's 52%. Pentax Image Sender also leads on rating (4.0 vs 3.4) and in-app purchases (none vs 1). GRImageViewer's advantage is update cadence (every 3 weeks vs every 14 months) and ratings volume (42 vs 1). 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
Both are free to download. GRImageViewer sells 1 one-off in-app purchase. Pentax Image Sender asks for nothing beyond the download.
Pentax Image Sender holds the better App Store score, 4.0 against 3.4. That said, the two scores are not equally well evidenced: GRImageViewer has 42 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 52% of GRImageViewer's written reviews are positive against 100% of Pentax Image Sender's.
GRImageViewer ships an update every 3 weeks, Pentax Image Sender every 14 months. The most recent releases landed on August 23, 2026 and June 1, 2026 respectively.
| Parameter | GRImageViewer | Pentax Image Sender |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (42 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 51.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 42 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 14 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | Pin Chih Lin | Hyunsu Lee |
Customer experience
GRImageViewer
Pentax Image Sender
In-app purchases
GRImageViewer
- Remove Ads$4.99
Pentax Image Sender
No in-app purchases
