ShutterFinder: Flicker Meter
ShutterFinder: Flicker Meter is #30 in Photo & Video Paid in South Korea and charting in 2 of 30 countries we track.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperNuncha
CategoryPhoto & Video
Price2.99 USD
Released
Rating★ 5.0 (1)
Version1.6
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Rating
5.0 ★
1 ratings
Measured
Best rank now
#30
Photo & Video PaidMeasured
ShutterFinder: Flicker Meter at a glance
AI summary written from our chart and store data, 2026-10-19. It can be wrong: check the numbers above.
ShutterFinder is a specialized utility for cinematographers and videographers that calculates optimal shutter speeds to eliminate flicker from artificial lighting sources. The app has achieved the #2 position in the South African Photo & Video paid charts, indicating strong regional traction despite limited global visibility.
Similar apps: FlickerFree, CineMeter, Light Meter
ShutterFinder: Flicker Meter on the App Store
App details
App ID
6760565737
Publisher
Netfox Media
On the store since
Mar 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Content rating
4+
Languages
1
EN
Size
2 MB
Also listed in
Utilities
Where ShutterFinder: Flicker Meter's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | Photo & VideoPaid | #30 |
 Colombia | Photo & VideoPaid | #8 |
Apps near ShutterFinder: Flicker Meter on the chart
Photo & Video Paid, around #30.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
What users say about ShutterFinder: Flicker Meter
From recent reviews.
About ShutterFinder: Flicker Meter
Stop guessing your shutter speed on set. Point your iPhone at a flickering light, tap Measure, and ShutterFinder tells you the exact shutter speed that makes the flicker disappear in your footage.
HOW IT WORKS
ShutterFinder films the light at 240 frames per second, finds the flicker frequency with spectral analysis and turns it into a shutter speed for the frame rate you shoot at. It then checks the result at a second frame rate, which unmasks fast LED dimmers that would otherwise look like ordinary mains flicker. Within seconds you know what to set.
WHAT IT MEASURES
• LED panels and practicals, tube lights, HMIs, neon, monitors and TVs
• LED dimmers (PWM) and OLED screens, including many that flicker too fast for the camera to see directly
• 50 Hz and 60 Hz mains, anywhere in the world
• Mixed lighting: when two lights flicker at different rates, the advice takes both into account and shows the alternative
BUILT FOR THE SET
• Shutter as time (1/50) or angle (180°), one tap to switch
• 23.98, 24, 25, 29.97, 30, 50 and 60 fps, plus any custom frame rate
• Change the frame rate after measuring and the advice updates instantly
• When no flicker-free shutter exists at your frame rate, such as some tube lights at 60 fps, ShutterFinder says so and gives the setting that leaves the least flicker
• Honest results: too dark, too shaky or no flicker at all is reported as exactly that, never as a guess
• The circle marks exactly what is measured; tap anywhere to focus
• Measuring stops by itself as soon as the reading is solid
UNDER THE HOOD
• 240 fps high-speed capture with automatic exposure bracketing for dark scenes
• Verification at a second, and when needed a third, frame rate to resolve frequencies above what the camera sees directly
• FFT analysis with Apple's Accelerate framework and sub-Hz precision
• Mains frequencies locked to their exact values, so 100 Hz gives an exact 1/50
PRIVACY
Everything is measured on your iPhone. No images or video are ever stored or sent. Anonymous usage statistics (no personal data, no tracking) help us improve the measurements.
Requires iPhone XS or later with iOS 17 or later.
HOW IT WORKS
ShutterFinder films the light at 240 frames per second, finds the flicker frequency with spectral analysis and turns it into a shutter speed for the frame rate you shoot at. It then checks the result at a second frame rate, which unmasks fast LED dimmers that would otherwise look like ordinary mains flicker. Within seconds you know what to set.
WHAT IT MEASURES
• LED panels and practicals, tube lights, HMIs, neon, monitors and TVs
• LED dimmers (PWM) and OLED screens, including many that flicker too fast for the camera to see directly
• 50 Hz and 60 Hz mains, anywhere in the world
• Mixed lighting: when two lights flicker at different rates, the advice takes both into account and shows the alternative
BUILT FOR THE SET
• Shutter as time (1/50) or angle (180°), one tap to switch
• 23.98, 24, 25, 29.97, 30, 50 and 60 fps, plus any custom frame rate
• Change the frame rate after measuring and the advice updates instantly
• When no flicker-free shutter exists at your frame rate, such as some tube lights at 60 fps, ShutterFinder says so and gives the setting that leaves the least flicker
• Honest results: too dark, too shaky or no flicker at all is reported as exactly that, never as a guess
• The circle marks exactly what is measured; tap anywhere to focus
• Measuring stops by itself as soon as the reading is solid
UNDER THE HOOD
• 240 fps high-speed capture with automatic exposure bracketing for dark scenes
• Verification at a second, and when needed a third, frame rate to resolve frequencies above what the camera sees directly
• FFT analysis with Apple's Accelerate framework and sub-Hz precision
• Mains frequencies locked to their exact values, so 100 Hz gives an exact 1/50
PRIVACY
Everything is measured on your iPhone. No images or video are ever stored or sent. Anonymous usage statistics (no personal data, no tracking) help us improve the measurements.
Requires iPhone XS or later with iOS 17 or later.
Latest updates
1.6
De nauwkeurigste ShutterFinder tot nu toe, getest met honderden gesimuleerde metingen op elke gangbare framerate van 23.976 tot 60 fps.
Nieuw in 1.6:
- Dimmers en schermen die tussen de netfrequenties in flikkeren, bijvoorbeeld op 140 of 200 Hz, worden veel betrouwbaarder gemeten. Is de frequentie niet vast te stellen, dan zegt ShutterFinder dat nu in plaats van te gokken
- Het scherm blijft aan tijdens het meten, zodat de automatische vergrendeling een meting niet meer kan afbreken
- Is het beeld te donker, dan zegt de app dat na ongeveer 9 seconden in plaats van 35
- Licht van 120 Hz op 23.976 fps krijgt nu de vertrouwde 1/60 (144°), net als op 24 fps
- Zwakke flicker van 120 Hz wordt vaker opgepikt
- De rij met framerates past op kleine iPhones, en de uitslag valt niet meer over de meetcirkel
- TIME of DEGREES wordt onthouden, en het alternatief voor een tweede lamp volgt jouw keuze
- Na een tik om scherp te stellen neemt de autofocus het weer over zodra je opnieuw kadreert
- Eigen framerate: het toetsenbord opent meteen en een waarde die niet kan, wordt gemarkeerd
- Raakt ShutterFinder de camera kwijt aan een andere app of doordat je iPhone te warm wordt, dan zegt hij dat in plaats van een bevroren beeld te tonen
En sinds 1.5:
- Vindt LED-dimmers en OLED-schermen die sneller flikkeren dan de camera rechtstreeks kan zien, zoals 240, 480, 960 of 1200 Hz, en noemt de juiste frequentie
- Twee lampen tegelijk, zoals een monitor naast een lamp, worden herkend, en het advies houdt rekening met allebei
- LED-dimmers op afwijkende frequenties, zoals 297 of 596 Hz, worden nu goed gemeten
- Licht op het Amerikaanse net (120 Hz) wordt exact vastgezet, dus je krijgt 1/60 in plaats van 1/59
- Tl-buizen en LED-drivers met een verborgen flicker van 50 Hz worden betrouwbaar herkend en krijgen een veilige shutter, ook op 59.94 en 60 fps
- Is er genoeg licht en geen flicker, dan komt de uitslag na ongeveer 12 seconden in plaats van 40
- ShutterFinder meet nu precies wat binnen de cirkel valt, zodat een lamp die er net buiten valt de meting niet kan verstoren
- Een hapering van de camera of een onderbroken meting geeft geen verkeerde uitslag meer
- Op toestellen die niet op 240 fps kunnen filmen zegt de app dat nu, in plaats van 'geen flicker' te melden
Anonieme gebruiksstatistieken (geen persoonsgegevens, geen tracking) helpen ons de metingen te blijven verbeteren.
1.4
Bug fixes
Store changes
What ShutterFinder: Flicker Meter changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
New screenshots
3 screenshots (was 2)
Renamed
ShutterFinder — Flicker Detect → ShutterFinder: Flicker Meter
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