ProjectorCalc vs Lensit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProjectorCalc
This utility app helps lighting technicians and projectionists calculate projected image dimensions. It determines image width, height, diagonal length, brightness, area, and pixel density based on projector and location details. It also estimates keystone distortion.
- Calculate image width, height, and diagonal length
- Determine brightness in Nits
- Calculate total projected area
- Compute pixels per inch
- Estimate keystone distortion
Read full descriptionHide full description
Winner of the 2010 Live Design Projection Product of the Year - Software/App Category ProjectorCalc is a program for professional lighting technicians and projectionists. Its primary purpose is to determine the size of a projected image given various information about the projector and it's location. ProjectorCalc allows users to enter details for a projector and its location in relation to a projection surface. ProjectorCalc will calculate image width, image height, diagonal length, brightness in Nits, total projected area, and how many pixels per inch the projected image will be. Additionally, ProjectorCalc can give you an estimate of how much keystone distortion will occur by calculating the length of each side of the distorted image.
Lensit
This utility app helps users calculate the correct projection lens or distance for video projection events. It supports different aspect ratios and unit systems, with pro features for saving unlimited events.
- Calculate lens factor by size/distance
- Calculate distance by size/lens factor
- Support for 4:3 and 16:9 aspect ratios
- Metric and imperial unit support
- Unit conversion
- Save unlimited events (Pro feature)
Read full descriptionHide full description
Get the exact lens and throw distance for your next projection setup — instantly. Lensit does the projection math for you: • Enter your screen size and distance to find the right lens • Or enter your lens spec to find the ideal distance • Switch between 4:3 and 16:9 aspect ratio • Works in metric or imperial — or use it to convert between them Built for AV techs, event producers, and anyone setting up a projector who doesn't want to do the math by hand. Pro adds: • Save unlimited events and pull them back up anytime
Screenshots
Verdict
The clearest difference is review sentiment: ProjectorCalc at 38% against Lensit's 0%. ProjectorCalc also leads on price ($2.99 vs $3.99) and iOS requirement (9.2 vs 16.4). Lensit's advantage is update cadence (fortnightly vs every 49 months). On ads, in-app purchases, monetization model 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
ProjectorCalc costs $2.99 and Lensit $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ProjectorCalc ships an update every 49 months, Lensit fortnightly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | ProjectorCalc | Lensit |
|---|---|---|
| Price | $2.99 — better | $3.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 37.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 49 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.2 — better | 16.4 |
| Further details — not scored | ||
| Size | 10 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | D!HV Lighting | lior cohen |
Customer experience
ProjectorCalc
Lensit
In-app purchases
ProjectorCalc
No in-app purchases
Lensit
No in-app purchases
