VideoCalc vs LensPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VideoCalc
Design home theaters with ease using this comprehensive tool. It simplifies complex calculations for screen dimensions, projector placement, and viewing angles, ensuring optimal system performance and adherence to industry standards.
- Screen dimension calculation
- Projector placement and throw ratio
- Anamorphic lens simulation
- Luminance and screen size calculation
- Field of view angle validation
- Imperial and metric unit support
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VideoCalc is The tool that will help you design Home Theaters in a consistent, quick and easy way. It makes all the tedious calculations a breeze and ensures you can get the desired information in an intuitive way. This is a must have for Home Theater enthusiasts, custom installers, video professionals and more. VideoCalc is made up of several tools, that each in its own right provide you with essential calculations but do work together, ensuring the effect of every component on the system is taken into account. Furthermore the tools are organized in a natural progression, guiding you through the process of designing a Home Theater that follows the industry best practices and standards. Start by defining your screen. The tool allows easy calculation of any screen dimension based on the others. Support for usual aspect ratios is provided, allowing you to pick amongst a selection of the most commonly used aspects. For a projection system, the next step tackles the projector part, defining the aspect ratio of the matrix and the optional usage of an anamorphic lens. The tool shows you how the image will fit within the defined screen and the deformation that the anamorphic lens would apply to the projected image. This is also a fantastic tutorial tool to understand anamorphic systems. The next step takes care of projector placement and/or selection in regards to the throw ratio requirements. Enter the throw ratio range of your projector and check it can be placed to work with your screen. Alternatively, enter the distance from the screen where you wish to place your projector and the tool computes the required throw ratio. This is perfect for selecting your lens on higher-end projectors. The Luminance tab allows to find out how big the screen can be with a given projector or how bright your projector must be to light up the defined screen, while respecting the industry best practices. With the Angle tab, validate that your field of view is in accordance with industry accepted standards such as THX or SMPTE. VideoCalc works in both imperial and metric units. Simply swipe down to reveal the unit selection view, giving you the choice between centimeters, meters, inches and feet. If you like this tool, be sure to also check AudioCalc, the companion tool addressing your audio needs.
LensPro
This utility app assists projectionists with lens calculations for various projector brands. It maintains an updated database of lens information accessible via the internet.
- Lens calculations
- Supports Barco, Christie, Panasonic, Epson, Benq, Mitsubishi, Optoma, Sony
- Online database updates
- Ideal for projectionists
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LensPro is the ideal companion of every projectionist. Lenspro allows the calculations of lenses: Barco - Christie - Panasonic, Digital Projection, Epson, Benq, Mitsubishi,Optoma,Sony. updating the database via the internet
Screenshots
Verdict
The clearest difference is rating: VideoCalc at 5.0 against LensPro's 4.4. VideoCalc also leads on price ($3.99 vs $5.99) and iOS requirement (7.1 vs 15.0). LensPro's advantage is ratings volume (21 vs 5). On review sentiment, update cadence, 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
VideoCalc costs $3.99 and LensPro $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VideoCalc holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 21 respectively. Written reviews point the same way: 82% of VideoCalc's written reviews are positive against 76% of LensPro's.
VideoCalc ships an update every 7 months, LensPro every 12 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | VideoCalc | LensPro |
|---|---|---|
| Price | $3.99 — better | $5.99 |
| Rating | 5.0 (5 ratings) — better | 4.4 (21 ratings) |
| Positive reviews | 81.8% of reviews — better | 76.5% of reviews |
| Number of ratings | 5 | 21 — better |
| Update frequency | Every 7 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Nelcea | piXap |
Customer experience
VideoCalc
LensPro
In-app purchases
VideoCalc
No in-app purchases
LensPro
No in-app purchases








