Version history
Optical Calculator for ECPs
63
ASO score
Text
76/100
Reviews
50/100
Graphic
60/100
Other
0/100
App Rating
4.6
Votes
62
App Age
8y 6m
Last Update
Oct 06, 2023
iAP
$4.99 - 49.99
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4.53
|
4.66
|
-3%
|
|
Number of Ratings (Voted)
|
61
|
3.2M
|
-100%
|
|
App Age
|
8y 5m
|
7y 6m
|
+13%
|
|
In-app Purchases Price
|
$27
|
$64
|
-57
%
|
|
Update Frequency
|
815d
|
27d
|
+2 912%
|
|
Title Length
|
27
|
23
|
+17%
|
|
Subtitle Length
|
28
|
28
|
|
|
Description Length
|
1 357
|
3 115
|
-56%
|
|
Number of Screenshots
|
564
|
1367
|
-59
%
|
|
Size
|
19MB
|
286MB
|
-93
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 21, 2025 | Dec 28, 2025 |
|---|---|---|
|
No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
|---|---|---|
|
No results were found!
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| Top | Dec 21, 2025 | Dec 28, 2025 |
|---|---|---|
|
No results were found!
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Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
27
of 30
)
Optical Calculator for ECPs
Subtitle
(
Characters:
28
of 30
)
Quick, Accurate, Easy to Use
Description
(
Characters:
1357
of 4000
)
The best Optical Calculator on the App Store.
• Stock Lens Cutout
• Lens Thickness
• Vertex Compensation
• Rx Transpose
• Intermediate Rx
• Prism Compounding
• Contact Lens Rx
• Induced Prism
• Tilt & Wrap Compensation
• Crossed Cylinders
• Resolving Prism
• Spectacle Magnification
• Vertical Imbalance Compensation
• Power in Oblique Meridians
If you want another calculator, let us know and we will add it.
The app is easy to use and to the point.
______________________________________________
About Subscription:
• You may subscribe to our service for a free trial. This subscription auto-renews yearly at the specified price.
• This subscription provides you full access to all our current and future optical calculators.
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
• The account will be charged for renewal within 24-hours prior to the end of the current period.
• Payment will be charged to your iTunes Account at confirmation of purchase.
• You may manage the subscription and auto-renewal may be turned off by going to the user's Account Settings after purchase.
• Any unused portion of a free trial period will be forfeited when you purchase the subscription.
• Privacy policy: http://www.lens-shapers.com/privacy
• Terms of use: http://www.lens-shapers.com/terms}
Read more
Other
Additional Information
| Rating: | |
| Voted: | 62 |
| App Store Link: | |
| Website: | |
| Email: | - |
| Privacy Policy: | |
| Categories: | Productivity, Reference |
| Size: | 19MB |
| iAP: | 4.99 - 49.99 $ |
| App Age: | 8 years 6 months |
| Release Date: | Jul 14, 2017 |
| Last Update: | Oct 06, 2023 |
| Version: | 1.7 |
Version history
1.7
Oct 06, 2023
Bug fixes and improvements.
1.6
Sep 21, 2023
Calculators Improvements:
• Improved Stock Lens Cutout calculator now incorporates B size and OC height for better accuracy.
• Improved Lens Thickness calculator now incorporates B size and OC heights for better accuracy.
• OC will stay locked to B/2 unless manually changed.
• Resultant Zero Cyl and Zero Axis values now show as -- for ease of understanding.
UI Improvements:
• Slider has been moved to the right to avoid accidental app menu activation.
Other bug fixes and improvements.