Ross Optical Calculator vs LensDataBase
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ross Optical Calculator
This utility app provides a comprehensive calculator for a variety of optical equations. It is designed for ease of use, making complex calculations accessible on your mobile device.
- Optical equation calculator
- Wide range of equations
- Easy to use interface
- Mobile accessibility
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A mobile app calculator with a wide range of optic equations, made easy for you to use.
LensDataBase
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Lens Data Base — professional reference tool for cinema lenses with detailed technical specifications. Core features: Advanced search by brand, focal length and format (anamorphic, spherical, Full Frame, S35) Lens comparison by aperture, sensor coverage and optical properties Auto-compatibility check for ARRI, RED, Sony Venice and Blackmagic Built-in analysis system for vignetting and distortion For professionals: — Directors of photography and camera assistants — Lens selection for specific projects — Quick technical limitations assessment Roadmap: — Shooting schedule integration (in development) — DoF (Depth of Field) calculator — AR lens preview via iPhone camera
Screenshots
Verdict
The clearest difference is update cadence: LensDataBase at weekly against Ross Optical Calculator's every 6 weeks. Ross Optical Calculator's advantage is iOS requirement (12.4 vs 18.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ross Optical Calculator ships an update every 6 weeks, LensDataBase weekly. The most recent releases landed on June 6, 2026 and September 8, 2026 respectively.
| Parameter | Ross Optical Calculator | LensDataBase |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Ross Optical | Evgenii Skvortsov |
In-app purchases
Ross Optical Calculator
No in-app purchases
LensDataBase
No in-app purchases
Questions
Is Ross Optical Calculator free?
Is LensDataBase free?
Do Ross Optical Calculator or LensDataBase have ads?
Which is updated more often, Ross Optical Calculator or LensDataBase?
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