Comparison

Clapper! vs Magic Sonic ViewFinder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clapper!

This app functions as a digital clapperboard for film and video production. It allows users to set titles and take numbers, with automatic rotation and counting features for seamless recording. It's designed to simplify on-set production management.

Highlights
  • Set title and take number
  • Auto-rotating clapperboard
  • Auto-counting take numbers
  • Simple interface
Read full description

Clapper! is nice clapperboard. ◆Call the title and taking number. ◆Clapperbard is auto rotating. ◆Taking number is auto counting.

About

Magic Sonic ViewFinder

This app simulates the field of view for various camera and lens combinations, aiding filmmakers in preproduction. It allows users to preview shots with different focal lengths, aspect ratios, and color presets, and save them for future reference.

Highlights
  • Precise framing preview
  • Simulates digital camera field of view
  • Supports numerous camera models
  • Tele adapter and anamorphic lens simulation
  • Aspect ratio frame guides
  • Color presets (LUTs)
  • Save shots with metadata
Features
Read full description

Magic Sonic ViewFinder presents you a precise framing preview for the real camera/lens combination you'll be shooting with, right where you stand with your iPhone / iPad. It simulates the field of view of digital cameras and can help thousands of professionals in filmmaking at the preproduction. PLEASE READ: this app does not turn your Apple device into an external monitor, but operates as a stand-alone director's viewfinder. The app contains ad banners, which can be turned off with additional in-app purchase. The app is a digital directors viewfinder -- it helps you see the field of view for your future shot. Select the camera from the menu and rotate the wheel to select the focal length of the lens. Supported cameras: - Alpha a99 II, 7RIII, 7RII - Alpha 7III, 7S II, 7R - Alpha a77, a6500, a6300, a5100 - FS100 / FS 700 - F3 / FS5 / FS7 - FX9 FF 6K / FF crop 5K / S35 4K - RX100 (1" sensor) - Venice 6K / 4K / 3.8K Magic ViewFinder simulates using tele adapters or anamorphic optics on your camera (see menu). From the menu you can also select the aspect ratio of the frame guide overlaying your image. Magic ViewFinder also lets you apply some commonly used color presets (also known as LUTs)to the live picture, which brings you even closer to the final shot. When you have found the right view, you may save it for future reference, with additional data like the focal length, date and time and camera / lens information. While taking a photo, you may lock exposure and turn on and off the auto focus to better control the captured picture. You can set camera to work in constant auto-focus mode, or lock the focus temporarily. You can also tap the live screen to focus on particular objects (which turns on the focus-locked mode). White balance may work in Auto, Locked or Manual mode. If the field of view of your real camera is wider than your in-device camera, the app adds 'padding' around the image, since the device cannot 'see' what is beyond. It is the best solution that we developed first amongst other viewfinder apps. Please note that position of your iPhone or iPad should correspond to the 'nodal point' of your real lens, which is somewhere in the middle of the lens. This point is, so to speak, the weighted center of the optics. Ad policy: Ads can be turned off (see below). Additional info about the app may be read at: http://dev.kadru.net/index.php/magic-viewfinder/ If you have any issues please email us for a quick support: dev@kadru.net To activate additional settings (i.e. to use all available optical adapters and frame guides) and to turn off advertising, please subscribe to (Option #1) or purchase Premium Features (Option #2) in 'About the App' menu. In-App Purchase Option #1: - Title of service: Premium features: subscription - Length of subscription: a month (auto-renewable) - Contents of service: Turned off ads and additional options for frame guides, optical adapters, anamorphic indices, more LUTs - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase - Any unused portion of a free trial period will be forfeited when the user purchases a subscription to that publication, where applicable In-App Purchase Option #2: - Title of service: Premium features: purchase - Length of subscription: once and forever - Contents of service: Turned off ads and additional options for frame guides, optical adapters, anamorphic indices, more LUTs Terms of Use: http://dev.kadru.net/tos.html Privacy Policy: http://dev.kadru.net/privacy_policy/Privacy_Policy_Magic_Sony_ViewFinder.html

Screenshots

Clapper!4 screens
Magic Sonic ViewFinder4 screens

Verdict

The call

The clearest difference is update cadence: Magic Sonic ViewFinder at monthly against Clapper!'s every 6 months. Magic Sonic ViewFinder also leads on ratings volume (42 vs 4) and iOS requirement (12.0 vs 15.6). Clapper!'s advantage is review sentiment (100% vs 86%). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Clapper! sells 1 one-off in-app purchase and Magic Sonic ViewFinder sells 2 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Clapper! against 4.7 for Magic Sonic ViewFinder. That said, the two scores are not equally well evidenced: Magic Sonic ViewFinder has 42 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 100% of Clapper!'s written reviews are positive against 86% of Magic Sonic ViewFinder's.

UpkeepUpdate frequency

Clapper! ships an update every 6 months, Magic Sonic ViewFinder monthly. The most recent releases landed on September 17, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 6 level
Clapper! versus Magic Sonic ViewFinder: the parameters behind the verdict, then further details
ParameterClapper!Magic Sonic ViewFinder
PriceFreeFree
Rating4.8 (4 ratings) — better4.7 (42 ratings)
Positive reviews100.0% of reviews — better85.7% of reviews
Number of ratings442 — better
Update frequencyEvery 6 monthsMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.612.0 — better
Further details — not scored
Size7 MB21 MB
Age rating4+4+
DeveloperBlowbend.jpRoman Medvid

Customer experience

Clapper!

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Magic Sonic ViewFinder

All ratings42 ratings
Positive92.9%
Neutral4.8%
Negative2.4%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

In-app purchases

1 purchases

Clapper!

One-time1
  • Remove Ads$0.99
2 purchases

Magic Sonic ViewFinder

Subscriptions1
  • Premium features: subscription1 Month trial$1.491 Month
One-time1
  • Premium features: purchase$4.99

Questions

Is Clapper! free?
Clapper! is free to download, with in-app purchases available.
Is Magic Sonic ViewFinder free?
Magic Sonic ViewFinder is free to download, with in-app purchases available.
Which has better reviews, Clapper! or Magic Sonic ViewFinder?
Clapper! is rated higher. Clapper! averages 4.8 out of 5 from 4 ratings, while Magic Sonic ViewFinder averages 4.7 from 42 ratings.
Do Clapper! or Magic Sonic ViewFinder have ads?
Both Clapper! and Magic Sonic ViewFinder show ads.
Which is updated more often, Clapper! or Magic Sonic ViewFinder?
Clapper! ships an update every 6 months, and Magic Sonic ViewFinder monthly. Most recently, Clapper! was updated on September 17, 2026 and Magic Sonic ViewFinder on September 22, 2026.

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