Version history
Lumen Calculator
42
ASO score
Text
54/100
Reviews
0/100
Graphic
60/100
Other
0/100
App Rating
2.6
Votes
7
App Age
8y 9m
Last Update
Jan 24, 2024
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
3
|
4.65
|
-35%
|
|
Number of Ratings (Voted)
|
4
|
3.2M
|
-100%
|
|
App Age
|
8y 9m
|
7y 8m
|
+14%
|
|
Price
|
$3
|
$0
|
|
|
In-app Purchases Price
|
$0
|
$69
|
|
|
Update Frequency
|
690d
|
27d
|
+2 429%
|
|
Title Length
|
16
|
23
|
-30%
|
|
Subtitle Length
|
29
|
28
|
+4%
|
|
Description Length
|
1 153
|
3 038
|
-62%
|
|
Number of Screenshots
|
1020
|
1325
|
-23
%
|
|
Size
|
8MB
|
284MB
|
-97
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 06, 2025 | Dec 13, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 06, 2025 | Dec 13, 2025 |
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No results were found!
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| Top | Dec 06, 2025 | Dec 13, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 06, 2025 | Dec 13, 2025 |
|---|---|---|
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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:
16
of 30
)
Lumen Calculator
Subtitle
(
Characters:
29
of 30
)
Conv Lumens, Lux and Candelas
Description
(
Characters:
1153
of 4000
)
The Lumen Calculator is a physics/math calculator designed to swiftly and easily convert between lumens, lux, and candelas.
Features:
- Instant calculation
- Results are copyable to other apps
- Formulas included as references
- Supports up to 16 decimal places
- Supports various units for each input
Definitions:
- Lumens: Unit of luminous flux, representing the total amount of light emitted by a source.
- Lux: Measure of surface illumination, indicating how much light is received by a surface.
- Candelas: SI units of luminous intensity, representing light emitted from a source in a particular direction per steradian.
Note:
Candelas measure the light emitted in a specific direction, while lux measures the light received per unit area. One steradian, the area of the receiving surface, is equal to the squared distance between the source and the receiver.
Formulas:
1. Lumens = Candelas * Ω
(For a specific angle)
2. Lumens = Candelas * 2π * [1 - cos(θ/2)]
3. Lux = Lumens / Area
4. Lux = Candela / Distance²
Where:
Ω = 2π * [1 - cos(θ/2)]
Ω = 4π
Thanks for your support, and please visit nitrio.com for more apps for your iOS devices.}
Read more
Other
Additional Information
| Rating: | |
| Voted: | 7 |
| App Store Link: | |
| Price: | 2.99 $ |
| Website: | |
| Email: | - |
| Privacy Policy: | |
| Categories: | Productivity, Utilities |
| Size: | 8MB |
| App Age: | 8 years 9 months |
| Release Date: | Mar 09, 2017 |
| Last Update: | Jan 24, 2024 |
| Version: | 1.2 |
Version history
1.2
Jan 24, 2024
- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.
1.1
Oct 23, 2020
- Update for Newest Devices
- Bug Fixed
