LensFactor vs iBouw
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
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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
iBouw
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iBouw is a cloud solution for project management. The prime principle of our solution is the operational management of projects from a web interface (usually via a desktop computer) and an easy and rational encoding system done via a mobile application by workers on their smartphones. Your information’s are automatically sent and stored on the cloud and accessed in real time by the authorized company’s users. It works everywhere. All you need is an internet connection.
Screenshots
Verdict
The clearest difference is price: iBouw at Free against LensFactor's $1.99. iBouw also leads on update cadence (every 3 months vs every 24 months). On ads, in-app purchases, device support and iOS requirement 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
iBouw is free to download; LensFactor costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LensFactor ships an update every 24 months, iBouw every 3 months. The most recent releases landed on September 21, 2026 and July 7, 2026 respectively.
| Parameter | LensFactor | iBouw |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 24 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Bart van Stiphout | CODROX SPRL |
In-app purchases
LensFactor
No in-app purchases
iBouw
No in-app purchases
