Version history
Lens Calc - Optical Dispensing
43
ASO score
Text
37/100
Reviews
50/100
Graphic
60/100
Other
0/100
App Rating
4.5
Votes
4
App Age
15y 10m
Last Update
Jul 27, 2025
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4.5
|
4.6
|
-2%
|
|
Number of Ratings (Voted)
|
4
|
65.9K
|
-100%
|
|
App Age
|
15y 9m
|
9y 3m
|
+70%
|
|
Price
|
$2
|
$2
|
+21%
|
|
In-app Purchases Price
|
$0
|
$37
|
|
|
Update Frequency
|
76d
|
138d
|
-45%
|
|
Title Length
|
30
|
25
|
+20%
|
|
Subtitle Length
|
0
|
25
|
|
|
Description Length
|
1 915
|
2 678
|
-28%
|
|
Number of Screenshots
|
1170
|
1355
|
-14
%
|
|
Size
|
8MB
|
278MB
|
-97
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 14, 2025 | Dec 21, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 14, 2025 | Dec 21, 2025 |
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No results were found!
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| Top | Dec 14, 2025 | Dec 21, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 14, 2025 | Dec 21, 2025 |
|---|---|---|
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No results were found!
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Ranking Keywords in United States
| Keywords | App Rank |
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Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
30
of 30
)
Lens Calc - Optical Dispensing
Subtitle
(
Characters:
0
of 30
)
Description
(
Characters:
1915
of 4000
)
LensCalc: The six most important calculations for all optical retail assistants, optical dispensers or dispensing optician. Oh, and optometrists might benefit too. LensCalc includes Vertex Distance, Effective Diameter, Lensmeter Helper, Transposition, Lens Thickness Estimation and Induced Prism, in a quick & easy to use format. It also includes a progressive lens markup helper!
Vertex Distance: Enter the lens power & two vertex distances. LensCalc will give you the new power required, and tell you if the difference is significant.
Effective Diameter: Enter the Frame PD, Widest Diameter & Patient's PD. LensCalc tells you the required blank lens diameter.
Vertometer / Lensmeter Helper: Enter the two powers and the axis of the second power. LensCalc gives you the proper minus cyl form. Because sometimes those plusses and minuses are just a bit too confusing!
Transposition: Enter the lens power in plus cyl form, and LensCalc will give you the minus cyl form. Useful when you've got to deal with those dinosaur Rxs. Or, if you are a dinosaur, convert those new-fangled minus cyl prescriptions into that old favourite, plus cyls.
Induced Prism: Enter the power, decentration and direction of decentration. LensCalc tells you how much prism and the base direction. It'll also tell you the effective power of the lens in that direction, to aid with dispensing advice.
Lens Thickness: Enter power, centre/edge thickness, lens diameter and refractive index. LensCalc tells you the resulting edge or centre thickness.
So, they're all there: the six most common calculations, and designed for speed and ease of use. What an excellent idea.
Multifocal markup: Place your marked-up lens on the iPhone screen, drag the top, bottom & centre markers to the appropriate place and LensCalc tells you the optical centre height, the frame depth and the datum measurement. Use it when fitting or when checking jobs!}
Read more
Other
Additional Information
Version history
2.5
Jul 27, 2025
Bug fix for effective diameter screen.
2.4
Jul 24, 2025
Updated to work with modern devices.
Fixed bug with Vertex Distance screen.