Donna vs LensKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Donna
This app serves as a pocket-sized assistant for users of RED cameras, enabling them to learn, practice, and reference the DSMC/DSMC2 menu structure. It helps avoid on-camera menu surfing and provides insights from industry professionals.
- Learn RED camera menu structure
- Practice menu navigation
- Reference DSMC/DSMC2 menus
- Avoid on-camera menu surfing
- Industry professional insights
- Support for specific firmware versions
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*Featured on NO FILM SCHOOL, CineTechnica, REDSHARKNEWS and NATEANDSEAN.RED.COM* - A must for anyone working with RED cameras. Your very own RED headed assistant. Donna allows users to quickly learn, practice and reference the DSMC/DSMC2 menu structure in the palm of their hand. ANYTIME. ANYWHERE. A perfect companion for AC's, DP's, DIT's, Rental Houses, Owner/Operators and film students working with RED cameras. "I work for RED and have been supporting the cameras for over 7 years. No BS… I sincerely believe that this is hands down the best thing for any RED user, assistant, owner, operator, or enthusiast to have on their phone. I recommend it to everyone on the receiving end of one of my camera demos, or anyone who contacts me about menu navigation." - Nate Heartt, RED LEARN. PRACTICE. REFERENCE. -Avoid menu surfing on the camera -Look like a menu wizard in front of your colleagues. -Bridge that gap between a Data Manager and a DIT. -Maybe you’ve gone as far as you can on your own and need to quickly file a support ticket while on set… DONNA can help with that. -Look up the latest RECON post or lens coverage on REDUSER -Maybe you want to see what crazy trouble Sean and Nate are into.. Donna Tips provides insight from the top professionals in the industry. The current release covers firmware version 5.3.X, 6.X.X and WEAPON 6.1.X Please note, this will not allow you to control the camera and is a simulator to be used for educational purposes. Not all buttons/menus are active.
LensKit
This app provides professional tools for filmmakers and cinematographers, offering extensive lens specifications, camera coverage simulations, and advanced depth of field calculations. It helps plan shoots, make on-set decisions, and ensure compatibility with various cameras and lenses, including Netflix-approved formats.
- Extensive lens database (2000+ lenses)
- Camera sensor coverage simulation
- Lens matching for various configurations
- Depth of field calculator
- Shot preview and framing simulation
- Netflix 4K mandate compliance tool
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Whether you’re planning a shoot or making decisions on set, LensKit has you covered. Search over 2000 lenses from Angenieux, Arri, Cooke, Hawk, Leica, Zeiss and more. All specs and data sourced by hand: no AI means no hallucinations. SPECS Includes max aperture, lens mounts, weight, length, close focus, front diameter and more* COVERAGE Overlay a lens’ image circle on your camera sensor to make sure it’s covered. Includes over 200 cameras from Arri, Canon, Red, Sony, Blackmagic, Panasonic and more* LENS MATCH Mix and match spherical, anamorphic, speed boosters and extenders, and even factor in post-production extractions— the lens match tool can handle it all. EQUIVALENT No need to worry about crop factors or sensor sizes, just choose a focal length and a camera and get the Super35 equivalent. Or pick the S35 equivalent length you want and see the lens you’ll need. NETFLIX APPROVAL A game changer for anyone who’s struggled with the complexity of which formats and resolutions meet the Netflix "4K mandate"— especially when shooting in anamorphic. Designed in collaboration with Netflix. DEPTH OF FIELD An easy to use yet comprehensive DOF tool that allows for customizing circle of confusion with presets and manual input. PREVIEW See a simulation of your shot based on lens, camera and distance. Or pinch, zoom and reposition to get the exact frame you want, and see what lens or distance you’ll need for it. AND MORE Filter lenses to see only what fits your specific camera and needs. Save your calculations and return to them later. Group together lenses you rent or own for quick access. • Support • For support, send me an email at zak@grayhourmedia.com or message me on Instagram @_zakray. To see all supported cameras and lenses, just install the app (it's free to download!) and open the main dropdown menu. No internet connection required: all data is hard-coded into the app, so there’s no syncing process, and you’ll be able to access it even without a cell signal. • Disclaimer • The "price" feature uses affiliate links from B&H Photo Video. I receive a commission if you make a purchase from one of these links. • About • LensKit is developed by Zak Ray and the team at Gray Hour Media in NYC & LA. Gray Hour produces fresh and original content for film, episodic and the web. Head to www.grayhourmedia.com to check out our work! *Every lens in this app has complete specs, with the exception of some Panavision lenses. We’ve chosen to include these incomplete lenses in the app because of Panavision's importance in the industry. Additionally, while the large majority of lenses have exact image circle data, some—especially some vintage lenses—list only generic format coverage (e.g. Super35, Full Frame, etc) EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: LensKit at 4.9 against Donna's 4.3. LensKit also leads on ratings volume (56 vs 10). Donna's advantage is in-app purchases (none vs 3) and iOS requirement (8.0 vs 15.0). On price, review sentiment, update cadence and ads 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. LensKit sells 3 in-app purchases, starting at $4.99 per month. Donna asks for nothing beyond the download.
LensKit holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: LensKit has 56 ratings behind it against 10, so its average is the more settled of the two. Written reviews split almost evenly too, at 71% and 70% positive.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 15, 2026 and November 3, 2026 respectively.
| Parameter | Donna | LensKit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (10 ratings) | 4.9 (56 ratings) — better |
| Positive reviews | 70.8% of reviews — better | 70.0% of reviews |
| Number of ratings | 10 | 56 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 59 MB | 165 MB |
| Age rating | 4+ | 4+ |
| Developer | Kristopher Prygrocki | Zak Ray |
Customer experience
Donna
LensKit
In-app purchases
Donna
No in-app purchases
LensKit
- Monthly Subscription$4.991 Month
- Annual Subscription$49.991 Year
- Lifetime Access$99.99









