LensFactor vs ezPoster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LensFactor
This app helps calculate lens factors, screen sizes, and projector distances based on known variables. It's a utility for professionals or enthusiasts needing precise measurements for display setups.
- Calculate lens factor
- Calculate screen size
- Calculate projector distance
- Input screen size and projector distance
- Input lens factor and projector distance
- Input lens factor and screen size
Read full descriptionHide full description
LensFactor is an application for the iPhone OS which has 3 basic functions: - Calculate the lens factor when the screen size and projector distance is known - Calculate the screen size when the lens factor(s) and projector distance is known - Calculate the projector distance when the lens factor(s) and screen size is known
ezPoster
Control your ezPoster LED display remotely via WiFi. Manage multiple displays, adjust settings like brightness and color, and easily add or delete picture and video content. Create custom programs with image zoom and crop features.
- WiFi control of LED displays
- Manage multiple displays
- Adjust brightness and color temperature
- Add/delete picture and video programs
- Image zoom and crop
- Switch to test mode
Read full descriptionHide full description
ezPoster iOS client simplify the control of the ezPoster LED display. Features: ● Communicate with the ezPoster LED display over WiFi, using a WiFi router or the ezPoster LED display's built-in WiFi ● List all ezPoster LED displays on one screen ● Change the name of the display so it's easy to remember and identify ● Adjust brightness ● Change the playing program ● Add/Delete Picture or Video program ● Image zoom and crop feature makes program creation easy ● Change the content horizontal and vertical offset ● Adjust color temperature ● Switch to test mode ● Restore to factory default state
Screenshots
Verdict
The clearest difference is price: ezPoster at Free against LensFactor's $1.99. ezPoster also leads on update cadence (every 11 days vs every 24 months). LensFactor's advantage is iOS requirement (11.0 vs 17.6). On rating, ratings volume, 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
ezPoster is free to download; LensFactor costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for LensFactor against 5.0 for ezPoster. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
LensFactor ships an update every 24 months, ezPoster every 11 days. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.
| Parameter | LensFactor | ezPoster |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 24 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Bart van Stiphout | SEE SHARP VISUAL, INC |
Customer experience
LensFactor
ezPoster
In-app purchases
LensFactor
No in-app purchases
ezPoster
No in-app purchases
