Shutter vs SX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shutter
Test the shutter speeds of your analog cameras using your iPhone. For precise measurements, use with the PhotoPlug accessory. Without it, the app analyzes shutter sound for speeds below 1/30sec.
- Test analog camera shutter speeds
- Use with PhotoPlug accessory for light measurement
- Analyze shutter sound for speeds below 1/30sec
- Store measurement values in a table
- Manage multiple cameras and lenses
- Calculate correction factors for faulty shutters
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With Shutter-Speed you can test the shutter speeds of your analog cameras just with your iPhone. Please note that the full potential of this App is only reached if you use it in combination with the PhotoPlug. The PhotoPlug is an optical sensor which connects to the headphone-jack of your iPhone and enables you to measure the actual amount of light passing through the camera shutter. Please visit www.filmomat.eu for detailed information and for ordering the PhotoPlug. How-To: Point the camera towards a bright light source. Place the PhotoPlug closely behind the camera shutter. Start the measurement and release the shutter. The App automatically analyzes the signal and calculates the shutter speed. All measurement values can be stored into a handy table. Multiple different cameras/lenses can be stored. A correction factor is calculated, which you can use to compensate a faulty shutter speed. For example, if you measure the 1/60s and it turns out to be 1/50s, the App will tell you that the shutter-speed is 1/3 stops too long. This gives rise to a correction factor of -1, indicating that you have to close your aperture by 1/3 f-stop to get a correct exposure. Without PhotoPlug, the App will record the sound of the camera shutter and calculate the shutter speed from that. Please note that this procedure will only give useable results for speeds below 1/30sec. With the PhotoPlug, shutter speeds up to 1/500sec can be measured.
SX
This application revolutionizes Bluetooth device control with an intuitive interface and advanced features. Manage multiple devices simultaneously, customize controls, and enjoy secure, reliable connections for audio, smart home, and more.
- Intuitive user interface
- Multi-device management
- Customizable control panels
- Audio equalizers
- Device search
- Connection history
- Secure and reliable
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The SX-70R App allows you to connect and operate your SX-70R camera, providing a smooth user experience and a wealth of features. ■ Connect to the SX-70R camera's built-in manual exposure program for greater creative control. ■ Need a selfie? Now you can use the stable remote control function. ■ The improved UI interface makes your operation smoother and significantly improves stability. ■ A new and improved renaming page has been added, allowing you to customize your camera's name. The SX-70R App gives you a more complete camera experience!
Screenshots
Verdict
The clearest difference is rating: SX at 4.0 against Shutter's 3.6. Shutter's advantage is review sentiment (58% vs 40%) and ratings volume (23 vs 7). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SX holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 23 and 7 respectively. Written reviews complicate that: 58% of Shutter's written reviews are positive against 40% of SX's, so the app with the better star average is not the one people write more warmly about.
Shutter ships an update monthly, SX every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Shutter | SX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (23 ratings) | 4.0 (7 ratings) — better |
| Positive reviews | 58.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 23 — better | 7 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Filmomat GmbH | 永民 陆 |
Customer experience
Shutter
SX
Bugs and requests
Shutter
Reported bugs
28 issues- No longer records shutter speeds longer than 1/2 second correctly
- Gives nonsense value for 1 second exposure
- Developer dismissive of problems
- Version 2.0 is buggy
- Cannot reliably measure shutter speeds
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- Automatic signal analysis less reliable
- Zooming of waveform is inconsistent
- App does not recognize Photo Plug
- Photo Plug device does not work
- No signal from Photo Plug
- Graph resolution too low for pinpointing times
- App needs update for new devices display
- Nothing works in the app
- Difficult to zoom waveform
- Inaccurate for speeds shorter than 1/60
- Auto-gaining causes jagged lines
- App does not work on iPhone 6
- Screen controls do not work on iPhone 6
- App crashes
- App freezes
- Interface not working correctly
- Cannot change target speed
- Zoom does not stay when zooming out
- Crashes when saving waveform
- App is not operational
- Difficult to isolate shutter sound
- Missing 1/1000 sec measurement
- Measurement of amount off is confusing
Requested features
13 requests- See milliseconds in camera profile
- 1000 shutter speed measurement
- Desktop variant with sensor
- Higher shutter speed support (e.g., 1/2000th)
- Graphical tweak for newer iPhones
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- Better explanation of auto-gaining
- Adjustable recording duration
- Filtering of results (moving average, band pass)
- Add 1/75 shutter speed
- Select any possible shutter speed
- Organize and delete camera readings
- More accurate measurement for speeds above 1/125
- Improve automatic zooming for waveform
SX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Shutter
No in-app purchases
SX
No in-app purchases







