ShutterCount Mobile vs PSI OCS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShutterCount Mobile
This app reads the shutter actuation count for Canon, Nikon, and Pentax digital cameras. It helps determine a camera's usage, check if a pre-owned item is truly new, and avoid service center trips. Features include unlimited readings, wear indicators, and history logging.
- Unlimited shutter count readings
- Shutter wear indicator
- History logging in CSV format
- Live View and electronic shutter counters (optional)
- Graphing and shutter life forecasting (optional)
- Canon EOS camera management (optional)
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*** The original, most feature-rich and only iOS shutter count reader that works with all new Canons *** ShutterCount displays the number of shutter actuations (the shutter count) of your Canon EOS, Nikon or Pentax digital camera - see the complete list of certified models below. The shutter count is read directly from USB or Wi-Fi connected Canons, and from image files for Nikon and Pentax cameras. With ShutterCount you can easily check whether a newly purchased camera is really new, or how heavily used a pre-owned item is. And you can save a trip to a service center by doing the reading for yourself. BASE FEATURES • Unlimited readings • Counter for still photos • Wear indicator with numeric and graphical rated shutter life percentage display • History logging to track camera usage; logs are stored in CSV format that can be imported into Numbers or Excel for further processing • Reports in plain text format • Wizard to guide you through the reading process LIVE VIEW PACK (optional in-app purchase supporting select Canon models) • Counters for live view/videos and electronic shutter • Distribution chart PLUS PACK (optional in-app purchase) • Graphing • Shutter life forecasting (not available for some Nikon and Pentax models) • History deduplication • Canon EOS camera management (date/time sync, owner name editing, copyright information setting, outdated firmware warning, IPTC export/import) • Raw copyright information display and secure personal data wiping for Canons CERTIFIED CAMERAS USB connection (requires a Lightning to USB Camera Adapter or a USB-C equipped iPad; Wi-Fi on the camera must be disabled): • Canon 1D4/1DC/1DX/1DX2/1DX3/5D2/5D3/5D4/5DS/5DSR/6D/6D2/7D/7D2/40D/50D/60D/60Da/70D/77D/80D/90D/100D/200D/200D2/250D/450D/500D/550D/600D/650D/700D/750D/760D/800D/850D/1000D/1100D/1200D/1300D/1500D/2000D/3000D/4000D/8000D/9000D/C50/M6II/M50/M50II/R/R1/R3/R5/R5C/R5II/R6/R6II/R6III/R7/R8/R10/R50/R100/Ra/RP; Kiss F/M/M2/X2/X3/X4/X5/X6i/X7/X7i/X8i/X9/X9i/X10/X10i/X50/X70/X80/X90; Rebel SL1/SL2/SL3/T1i/T2i/T3/T3i/T4i/T5/T5i/T6/T6i/T6s/T7/T7i/T8i/T100/XS/XSi Wi-Fi/Ethernet connection is supported using built-in networking or Canon transmitters on the above cameras having the "EOS Utility" function. The camera must be paired directly with ShutterCount using this function. Image files: • Nikon D2H/D2X/D2Xs/D3/D3S/D3X/D4/D4S/D5/D6/D40/D40X/D50/D60/D70/D70s/D80/D90/D200/D300/D300S/D500/D600/D610/D700/D750/D780/D800/D800E/D810/D850/D3000/D3100/D3200/D3300/D3400/D3500/D5000/D5100/D5200/D5300/D5500/D5600/D7000/D7100/D7200/D7500/Df/Z5/Z5II/Z6/Z6II/Z6III/Z7/Z7II/Z8/Z9/Z30/Z50/Z50II/Zf/Zfc/ZR; 1 AW1/J1/J3/J4/J5/V1/V2/V3; Coolpix A • Pentax *istDL/*istDL2/645D/645Z/K1/K1II/K3/K3II/K3III/K3IIIMono/K5/K5II/K5IIs/K7/K10D/K20D/K30/K50/K70/K100D/K100D Super/K200D/K500/K2000/Km/KP/Kr/KS1/KS2/Kx Cameras not listed here are not supported. FOR DETAILED COMPATIBILITY INFORMATION PLEASE VISIT: https://www.direstudio.com/shuttercount/tech-specs Questions? Problems? Check out the Getting Started Guide (https://www.direstudio.com/shuttercount/getting-started), the FAQ (https://www.direstudio.com/shuttercount/faq), or contact our support by tapping Report a Problem on the More tab! DISCLAIMER: The app displays the camera's internal counter. DIRE Studio is not responsible for how well and accurately the camera maintains that counter. The forecast is calculated based on your previous usage, and will change if you use the camera differently in the future.
PSI OCS
This app enhances network communication for remote viewing and data transmission. It effectively resolves dynamic IP and no public IP issues in various network environments, offering improved performance over similar solutions.
- New transmission system
- Large server network
- Improved connection rate
- Faster transmission speed
- Solves dynamic IP issues
- Solves no public IP issues
- Uses CDN technology
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PSI OCS uses new transmission system and a large number of servers. Comparing with AnTone, the performance of PSI OCS is much better than that of AnTone in terms of connection rate and transmission speed. PSI OCS improves the communication problem in the complex network environment. It solves dynamic IP and no public IP problems effectively under the environments of ADSL, PPPoE and LAN. Comparing DDNS, PSI OCS do not need to apply for dynamic domain name, do port mapping and run DNS client. Remote view can be run based on a PSI OCS code, which can be gotten at host-end software.PSI OCS uses CDN (Content Delivery Network) technology in terms of servers, which is a leading technology used in many web portals. The servers of PSI OCS are located at the key nodes of network operators in order to get perfect bandwidth. The CDN technology is very useful in the application of PSI OCS.
Screenshots
Verdict
The clearest difference is review sentiment: ShutterCount Mobile at 55% against PSI OCS's 0%. ShutterCount Mobile also leads on chart position (#24 vs unranked) and ratings volume (66 vs 19). PSI OCS's advantage is price (Free vs $9.99) and rating (4.1 vs 3.3). On update cadence, ads 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
PSI OCS is free to download; ShutterCount Mobile costs $9.99 up front. ShutterCount Mobile sells 3 one-off in-app purchases. PSI OCS asks for nothing beyond the download.
PSI OCS holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 66 and 19 respectively. Written reviews complicate that: 55% of ShutterCount Mobile's written reviews are positive against 0% of PSI OCS's, so the app with the better star average is not the one people write more warmly about.
ShutterCount Mobile ships an update every 3 months, PSI OCS every 2 months. The most recent releases landed on October 16, 2026 and September 23, 2026 respectively.
| Parameter | ShutterCount Mobile | PSI OCS |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.3 (66 ratings) | 4.1 (19 ratings) — better |
| Positive reviews | 54.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 66 — better | 19 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #24 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 8.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | DIRE Studio | SOFTTECH NETWORK COMPANY LIMITED |
Customer experience
ShutterCount Mobile
PSI OCS
Bugs and requests
ShutterCount Mobile
Reported bugs
11 issues- WiFi pairing fails on certain camera models
- App doesn't connect despite correct configuration
- Shutter count displays as zero on mobile version
- Inconsistent readings between mobile and desktop versions
- Connection timeout issues lasting 30+ minutes
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- Incompatibility with 5GHz WiFi networks
- Camera not detected in pairing wizard
- USB connection not working with newer iPhones
- App crashes during connection process
- Cannot differentiate between mechanical and non-mechanical actuations
- Bug in latest camera firmware prevents reading shutter count
Requested features
9 requests- Clearer, more detailed step-by-step instructions per camera model
- German language version
- Improved error messages with troubleshooting guidance
- Support for non-mechanical actuation differentiation
- Lower price point ($2.99-$3.99 range)
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- Better documentation for USB connection method
- In-app tutorial or wizard improvements
- Support for older Canon camera models (60D, 5D Classic, T5, 30D)
- Automatic camera detection without manual pairing
PSI OCS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ShutterCount Mobile
- Feature Level 6 to 7 Upgrade$1.99
- Live View Pack$5.00
- Plus Pack$7.00
PSI OCS
No in-app purchases
Questions
Is ShutterCount Mobile free?
Is PSI OCS free?
Which has better reviews, ShutterCount Mobile or PSI OCS?
Do ShutterCount Mobile or PSI OCS have ads?
Which is updated more often, ShutterCount Mobile or PSI OCS?
Other comparisons
