Comparison

Mnemonica vs Magic ARRI ViewFinder

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

Head to head
About

Mnemonica

Features
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Mnemonica — Screen. Deliver. Preserve. Mnemonica is the European cloud-based content hub for the film and HETV industry — the only platform that covers the entire lifecycle of a cinematic work, from the first day of production to long-term preservation and beyond. Mnemonica brings together secure streaming, accelerated file transfer, and masters archiving in one environment built for top-grade security and real-world simplicity. Mnemonica Production Everything your production needs, always in your pocket. • Private Screening Rooms with unlimited guests, per-user viewing stats down to the second, and automated proxy encoding and watermarking • Integrated two-way file transfer via Sharing Boxes — send and receive filesets of any size, with QUIC acceleration and full delivery history • Dailies management with Days and Scenes breakdown, personal playlists, and instant distribution to editorial • Real-time notifications keep every stakeholder informed the moment new content is available • Playback HDR content con compatible devices, cast to your TV via AirPlay 2 Mnemonica Archive Your film library, always present and ready for the market. • Store, index, and retrieve digital masters — DCP, IMF, ProRes, audio stems, and more — organized by project, work, version, and package • Screening Rooms for sales and licensing: invite buyers, manage access, track views, apply watermarks • Deliveries with formal receipt tracking, approval workflows, and permanent history • Automatic metadata import from TMDB and extraction from DCP/IMF packages • Double-region redundancy across EU data centers, cold disaster recovery included Security by design, everywhere Mnemonica is a closed, invitation-only community. No magic links, no shared links and passwords. Your mobile app is your master key: passwordless login, biometric authentication, and multi-factor control for all your sessions — including on unfamiliar devices. Certified ISO 27001, TPN Gold Shield, and Amazon Studios Tier 1. Unlimited users. Always. Accounts are personal and lifelong. No per-seat fees, no workarounds, no shared credentials. From prep to eternity — Mnemonica is with you at every step.

About

Magic ARRI ViewFinder

This app simulates the field of view for ARRI digital cameras and lenses on your iPhone or iPad. It helps filmmakers preview exact framing and lens focal lengths during pre-production, with options for color presets and saving shots.

Highlights
  • Precise framing preview
  • ARRI digital camera simulation
  • Lens focal length selection
  • Aspect ratio frame guides
  • Color preset (LUT) application
  • Save framed shots with data
  • Focus and exposure control
Features
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Magic ARRI ViewFinder gives 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 ARRI digital cameras or lens and can help thousands of professionals in filmmaking at the preproduction. PLEASE READ: the app does not turn your Apple device into an external monitor but operates as a stand-alone tool. The app contains ad banners, which can be turned off with additional in-app purchase (in 'About the App' menu). The app is a digital directors viewfinder -- it helps you see the exact 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 / formats: - Alexa Classic / XT / SXT / LF / Amira - Sensor Mode 16:9 4:3 / 4:3 Cropped / Open Gate 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: The ads are designed to appear non-intrusively. 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 Terms of Use: http://dev.kadru.net/tos.html Privacy Policy: http://dev.kadru.net/privacy_policy/Privacy_Policy_Magic_CinemaPLUS_ViewFinder.html 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

Screenshots

Mnemonica4 screens
Magic ARRI ViewFinder4 screens

Verdict

The call

The clearest difference is in-app purchases: Mnemonica at none against Magic ARRI ViewFinder's 2. Mnemonica also leads on ads (none vs shown). Magic ARRI ViewFinder's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Magic ARRI ViewFinder sells 2 in-app purchases, starting at $1.49 per month. Mnemonica asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. Both last shipped on November 11, 2026.

Scorecard3 real differences · 7 level
Mnemonica versus Magic ARRI ViewFinder: the parameters behind the verdict, then further details
ParameterMnemonicaMagic ARRI ViewFinder
PriceFreeFree
Rating—4.8 (178 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—178 — better
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size53 MB22 MB
Age rating4+4+
DeveloperMnemonicaRoman Medvid

In-app purchases

None

Mnemonica

No in-app purchases

2 purchases

Magic ARRI ViewFinder

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

Questions

Is Mnemonica free?
Mnemonica is free to download, with no in-app purchases.
Is Magic ARRI ViewFinder free?
Magic ARRI ViewFinder is free to download, with in-app purchases available.
Do Mnemonica or Magic ARRI ViewFinder have ads?
Magic ARRI ViewFinder shows ads; Mnemonica does not.
Which is updated more often, Mnemonica or Magic ARRI ViewFinder?
Mnemonica ships an update monthly, and Magic ARRI ViewFinder monthly. Most recently, Mnemonica was updated on November 11, 2026 and Magic ARRI ViewFinder on November 11, 2026.

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