OptiLibrary vs EyeScaler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OptiLibrary
Read full descriptionHide full description
Main functions: lens design display, coating effect display, color-changing lenses, color-changing lenses, 3d display。
EyeScaler
This utility app uses your phone's camera to accurately measure your pupillary distance for glasses. It provides both distance and reading measurements, offers insights into your results, and suggests frame sizes. Keep a history of your scans for easy access.
- Smart PD Scan
- Far & Near PD Support
- Frame Fit Tips
- History Records
- No Tools Needed
Read full descriptionHide full description
No more rulers or mirror guessing — EyeScaler scans your eyes and gives you the PD you actually need. Key Feature: - Smart PD Scan: Automatically measures your pupillary distance in seconds. - Far & Near PD Support: Includes both distance and reading measurements. - Easy-to-Read Insights: Learn what your numbers mean and how they differ. - Frame Fit Tips: Get suggested frame sizes based on your results. Extra Helpful Stuff: - History Records: Every scan is saved for quick access anytime. - No Tools Needed: Just your face and the camera. - Simple by Design: No confusing steps, no extra fuss. Buying glasses online, trying new frames, or just checking your PD? EyeScaler keeps it quick, accurate, and stress-free. Privacy Policy: https://www.freeprivacypolicy.com/live/001e9120-478b-4cd1-b0b6-5949ca959c02 Terms of Use: https://www.freeprivacypolicy.com/live/6c121302-7c13-4784-9b8d-c362e1c6cff3
Screenshots
Verdict
The clearest difference is in-app purchases: OptiLibrary at none against EyeScaler's 1. OptiLibrary also leads on iOS requirement (11.0 vs 15.0). EyeScaler's advantage is update cadence (fortnightly vs monthly). On price, ads 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. EyeScaler sells 1 one-off in-app purchase. OptiLibrary asks for nothing beyond the download.
OptiLibrary ships an update monthly, EyeScaler fortnightly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | OptiLibrary | EyeScaler |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 227 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Ouzhiou Trading Co., Ltd. | 建芳 马 |
In-app purchases
OptiLibrary
No in-app purchases
EyeScaler
- EyeScale Lifetime PRO$2.99
Questions
Is OptiLibrary free?
Is EyeScaler free?
Do OptiLibrary or EyeScaler have ads?
Which is updated more often, OptiLibrary or EyeScaler?
Other comparisons
