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.
3.7(21 ratings)
Free
Best apps like SX-70R
10+ similar apps compared and reviewed
4.2 avg rating
10 free apps
Updated August 2026
SX is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to SX
3.3(8 ratings)
FreeIn-App Purchases
Measure distances and angles using your device's LiDAR sensor. Get audio readouts of measurements and use the flashlight for better accuracy in low light. Requires a LiDAR-equipped device.
Sidus Audio by Sidus Link Ltd.
Worth Considering
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4.4(16 ratings)
Free
This app allows professional audio engineers and sound enthusiasts to wirelessly connect and control multiple audio devices. It features an intelligent network for stable communication, centralized monitoring, and parameter presets, all accessible through a user-friendly interface.
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4
amaran
by Sidus Link Ltd.
Free
Control your lighting setup effortlessly with a user-friendly interface. Manage multiple fixtures, adjust brightness, and save custom configurations in real-time. This app is designed to simplify your creative process, whether on location or in the studio.
Simplified lighting controlReal-time adjustmentsMulti-light management
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free5
Sidus Link
by Sidus Link Ltd.
Free
Control film lighting fixtures directly from your mobile device. This app offers advanced modes for white light, gels, color, and effects, with features for scene setup and collaboration. It supports over 100 fixtures and simplifies complex lighting workflows.
Sidus Mesh Intelligent Lighting NetworkWhite Light, Gel, Color, and Effect ModesUnlimited Presets and QuickShots
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free6
Photo Light & Exposure Meter
Measure Shutter Speed, Lux, EV
Free
This app acts as a portable light meter for photographers. It helps you understand correct photography settings and experiment with shutter speed, aperture, and ISO in real time. Save snapshots with parameters and geolocation, and measure color temperature.
Real-time shooting value selectionAdjustable shutter speed, aperture, ISOPreliminary picture settings preview
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free with in-app purchases7
ChronoLog • Watch Accuracy
Accuracy and Timegrapher
Free
$4.99 | 100% OFF
This app provides professional-grade tools to track the accuracy of mechanical watches. It offers audio timegraphing, photo offset measurement, and tap timing, along with detailed analytics and atomic time synchronization for collectors and enthusiasts.
Audio timegrapher for rate, beat error, and amplitudePhoto offset measurement against atomic timeTap timing for quick offset logging
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paid8
Lux Light Meter Pro
Measure Luminosity in Lux & FC
Free
Measure light intensity in lux and foot candles with this 2-in-1 meter. Optimize photography settings, adjust indoor lighting, or prevent eye strain with professional-quality readings directly from your smartphone.
Real-time lux and foot candle measurementsReal-time color temperature measurementsReal-time histogram plotting
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Light Meter LM-3000
Simple & accurate measurement!
Free
Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.
Measure illuminance (lux/foot-candle)Measure color temperature (Kelvin)Industry-leading accuracy
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Lux Light Meter Pro for Photo
Luminosity & Exposure Value EV
Free
This app provides precise light measurements in lux and foot candles, along with real-time color temperature readings. It offers shooting value recommendations and allows manual adjustment of camera settings for photographers, plant enthusiasts, and workspace optimization.
Real-time color temperature measurementLux and foot candles light measurementsAverage and max light values
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subscription