Ross Optical Calculator vs OptiLibrary
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.
OptiLibrary
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Main functions: lens design display, coating effect display, color-changing lenses, color-changing lenses, 3d display。
Screenshots
Verdict
Ross Optical Calculator and OptiLibrary are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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, OptiLibrary monthly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | Ross Optical Calculator | OptiLibrary |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 227 MB |
| Age rating | 4+ | 4+ |
| Developer | Ross Optical | Shanghai Ouzhiou Trading Co., Ltd. |
In-app purchases
Ross Optical Calculator
No in-app purchases
OptiLibrary
No in-app purchases
Questions
Is Ross Optical Calculator free?
Is OptiLibrary free?
Do Ross Optical Calculator or OptiLibrary have ads?
Which is updated more often, Ross Optical Calculator or OptiLibrary?
Other comparisons
