v6.0.2
June 05, 2024
* Upd: Target SDK 34
* Upd: Some external libraries have been updated
v6.0.1
April 15, 2024
* Mod: Improved some layouts
* Mod: Improved print layout
v6.0.0
March 04, 2024
* New: Save report as PDF
* Mod: Improved print layout
* Fix: Corrected display of LED characteristics
* Upd: General update of the languages
* Fix: Minor bug fix
v5.4.6
January 18/01/2024
* Mod: Various graphic renovations
* Fix: Restarting the app when you reset settings
v5.4.5
December 15, 2023
* Add: Possibility to benefit from a free trial period
* Mod: The paywall has been renewed
* Mod: Improved purchasing and license management
* Upd: Indonesian language (by MAD)
v5.4.4
November 09, 2023
* Upd: Catalan language (by Toni Ancillo)
* Fix: AD SDK initialization when consent dialog fails
v5.4.3
October 04, 2023
* Upd: Updated some external libraries
v5.4.2
September 18, 2023
* Mod: New email address for contact us
* Upd: General update of the languages
* Mod: build.gradle rewrited in Kotlin
v5.4.1
July 18, 2023
* Add: Japanese language
* Add: Korean language
* Add: Traditional Chinese language
* Upd: General update of the languages
* Fix: Crash when searching for an update
v5.4.0
June 14, 2023
* New: Renewed the app icon
* Fix: The translation tool was not sending the email correctly
* Fix: When restoring the original order, all favorites were deleted
* Mod: Improved checking for updates
* Upd: General update of the languages
* Upd: Updated some external libraries
* Upd: Target SDK 33
* Upd: Ad consent manager
v5.3.2
February 28, 2023
* Fix: Minor bug fix
v5.3.1
December 02, 2022
* Fix: Kotlin coroutines
* Fix: Interstitial manager
* Add: Ukrainian language
* Upd: General update of the languages
v5.3.0
September 30, 2022
* New: Help for each calculation is available
* Upd: General update of the languages
v5.2.4
September 19, 2022
* Upd: Simplified Chinese language (by sky)
* Upd: General update of the languages
v5.2.3
May 25, 2022
* Upd: Improved compatibility with Android 12
* Imp: Cold start times have been improved
* Fix: Crash when entering an invalid parameter in custom zones
* Upd: General update of the languages
* Mod: AdMob mediation
v5.2.2
February 02, 2022
* Upd: Portuguese [BR] language (by Oz Perrenoud)
* Upd: General update of the languages
* Upd: Updated some external libraries
v5.2.1
December 30, 2021
* Mod: Improved license management
* Fix: Added the maintenance factor to the formula of the total flow calculation
* Fix: Zip Path Traversal Vulnerability
* Fix: Minor bug fix
* Upd: Russian language (by Murtozakul)
v5.2.0
October 18, 2021
* New: EU energy label 2021
* Upd: Russian language (by Murtozakul)
* Upd: Indonesian language (bu Putra)
v5.1.0
August 03, 2021
* Add: Lifetime purchase
v5.0.4
July 22, 2021
* Add: Induction lamp in calculations that require watt / lumen conversion
* Add: Data related to glare, flicker and dimmability in the “Types of lamp” tab
* Fix: Minor bug fix
* Upd: Arabic language (by Ahmed Elfouly)
* Upd: Russian language (by Murtozakul)
* Upd: General update of the languages
v5.0.3
July 08, 2021
* Fix: Minor bug fix
* Upd: General update of the languages
v5.0.2
June 01, 2021
* Mod: Removed unused permissions
* Fix: Translation upload
May 13, 2021
* Mod: Improved the GDPR consent dialog
v5.0.0.1
April 29, 2021
* Fix: Bug RestoreInstanceStateDelayed
v5.0.0
April 26, 2021
* New: Some graphic parts have been renewed
* Add: Various modifications and improvements
* Mod: Moved “Generic tables for power factor correction” on a separate page
* Upd: General update of the languages
v4.5.4
March 21, 2021
* Add: Formula of the calculation of the total flux
* Add: Catalan language (by Toni Ancillo)
* Upd: Indonesian language (by Suryadi Fajrin)
* Upd: General update of the languages
* Fix: Minor bug fix
v4.5.3
February 14, 2021
* Upd: General update of the languages
v4.5.2.1
January 14, 2021
* Add: Restore old key via the settings menu
v4.5.2
January 11, 2021
* Fix: Currency code bug in subscription price (only Android)
* Add: Splash icon (only Android)
* Fix: Bug TagForUnderAge (only Android)
* Upd: General update of the languages
v4.5.1
December 10, 2020
* Upd: German language (by Andreas)
* Upd: Bulgarian language (by Dian PANTELEEV)
* Upd: General update of the languages
v4.5.0
October 20, 2020
* New: Luminance / Exposure value converter
* New: Illuminance / Exposure value converter
* Fix: Purchases with Android 4
* Upd: General update of the languages
v4.4.0
October 12, 2020
* Add: In-App purchases
* Add: Setting to disable the changelog at each update
* Upd: Russian language (by Murtozakul)
* Upd: General update of the languages
* Fix: Minor bugfix
v4.3.4
September 08, 2020
* Imp: Taking long screenshots
* Add: Hindi language (by KamPoo)
* Upd: Arabic language (by Tamim Hamrit)
* Upd: Russian language (by Murtozakul)
* Upd: General update of the languages
v4.3.3
July 13, 2020
* Fix: Change language on Android 7 and lower
* Fix: WebView
* Upd: Indonesian language (by Sony Bejo)
* Upd: General update of languages
v4.3.2
June 08, 2020
* Mod: “Photobiological safety of led” is available in the FREE version
* Imp: Luminous efficacy now also supports decimal numbers
* Upd: Portuguese [BR] language (by Elder Henrique de Souza)
* Upd: General update of languages
v4.3.1
April 16, 2020
* Mod: Some graphical improvements
* Upd: General language update
v4.3.0
February 17, 2020
* Mod: Restyling of some graphical components
* Upd: Spanish language (by Kovalsky)
v4.2.5
January 20, 2020
* Mod: “Lux meter”, “Color codes of fluorescent tubes” and “Power factor correction” are now available in the FREE version
* Upd: Simplified Chinese language (by Wang Jiangyu)
* Upd: General update of languages
v4.2.4
December 16, 2019
* Fix: Inability to change the language
* Upd: General update of languages
v4.2.3
December 10, 2019
* New: Reorganization of calculations using the Conversions tab
* Fix: ViewPager
* Fix: Crash with a invalid parameter in “Illuminance on the surface”
* Upd: General update of languages
v4.2.2
October 02, 2019
* Fix: Crash when backing up in read-only locations
v4.2.1
September 09, 2019
* Fix: Print manager
* Upd: Polish language (by zbyszek pizuch)
v4.2.0
July 08, 2019
* New: Sheet “Favorites”
* Fix: Values of “Light sources”
* Mod: Migration to AndroidX
* Add: Page with other apps
* Upd: Russian language (by Murtozakul)
v4.1.4
May 01, 2019
* Fix: Minor bugfix
v4.1.3
April 11, 2019
* Upd: Russian language (by Murtozakul)
* Upd: Portuguese [BR] language (by Daniel Quicoli)
* Upd: Support to Android P
* Mod: Improved landscape layouts
v4.1.2
February 05, 2019
* New: Settings backup
* Add: Selectable result
* Add: Bosnian language (by Ferid)
* Add: Pinterest Profile
* Upd: Portuguese [PT] language (by Leandro Sousa)
* Mod: Removed Firebase Invites
v4.1.1
November 12, 2018
* Fix: Czech language (by Skipy)
* Upd: Arabic language
* Fix: Print function
v4.1.0
September 06, 2018
* New: Print support
* Fix: Some layouts RTL
* Fix: ViewPager
* Fix: Crash in Kruithof curve
* Mod: Removed support for serial number
* Upd: Russian language (by Murtozakul)
* Upd: Portuguese [BR] language (by Valéria)
* Upd: German language (by Andreas)
v4.0.0
May 28, 2018
* New: General reorganization of the calculations
* Upd: Updated some languages
* Fix: Minor bugfix
v3.4.1
April 12, 2018
* Upd: Indonesian language (by Putra)
* Upd: Bulgarian language (by Ivan Radev)
* Upd: German language (by Andreas)
* Fix: Check update
v3.4.0
February 23, 2018
* New: Kruithof curve
* New: Indonesian language (by Putra)
* Mod: Improved calculation “Quantity of luminaires”
* Upd: German language (by Lktrsch)
* Upd: Serbian language (by Vladimir Cvijovic)
* Fix: Notifications with Android Oreo
* Fix: Appirater
v3.3.3
November 10, 2017
* Upd: Bulgarian language (by Ivan Radev)
* Fix: Translator Tool bug with persian language
v3.3.2
September 14, 2017
* Fix: Bug in search mode
* Fix: Open/share files
* Upd: Russian language (by Segida and Murtozakul)
* Upd: Czech language (by Skipy)
v3.3.1
August 27, 2017
* New: Translator Tool
* New: Splash screen
* Add: LinkedIn profile
v3.3.0
July 19, 2017
* New: Specific power
* Add: Luminous efficiency to table of SMD led
* Upd: German language (by Andreas)
* Upd: Czech language (by Skipy)
* Upd: Portuguese language (by Leandro Sousa)
* Upd: Padding of icon
* Fix: Static AsyncTask
v3.2.0
May 12, 2017
* New: Unified Glare Rating
* New: Color rendering index
* Add: Cold-cathode fluorescent lamp
* Add: Foot-candela in the Luxmeter
* Upd: Czech language (by Skipy)
* Fix: Bug “IllegalArgumentException” in the request state of ProKey
* Fix: Amazon App Store (uk.amazon.mShop.android) not recognized
v3.1.2
March 31, 2017
* Mod: Settings show selected value
* Upd: German language (by Andreas)
* Fix: Bug “Select coefficient of utilization”
* Fix: Bug “View not attached to window manager” in the dismiss dialog
* Fix: Bug “Close Action Mode”
* Fix: Layouts RTL
* Fix: Amazon App Store not recognized on Android 7
v3.1.1
March 01, 2017
* Mod: Renewed translation page
* Mod: New style for AlertDialog and Toast
* Mod: “Table of luminous efficacy” and “Conversion Lux/Foot-Candle” are available in the free version
* Upd: Russian language (by Segida)
* Upd: Turkish language (by Bekir Aydogdu)
* Fix: Bug “empty search” in “Lighting requirements for interiors”
* Fix: Bug “Dialog in OnPostExecute”
* Fix: Bug “Unable to start activity ComponentInfo” in the request state of Pro Key
v3.1.0
January 17, 2017
* New: Photobiological safety of led
* New: Lighting requirements for interiors
* New: Luminous efficacy calculation
* Imp: Improved image quality of “Bulb shapes”
* Add: Preliminary compatibility with Android 7.1
* Add: Firebase with Invites
* Fix: Preliminary bug fix “Unable to start activity ComponentInfo”
* Fix: Cursor at the end of EditText
* Upd: Serbian language (by Saša Fišić)
* Upd: Portuguese [PT] language (by Leandro Sousa)
v3.0.0
October 24, 2016
* New: Quantity of luminaires
* New: Kelvin to RGB
* New: RGB/HEX conversion
* New: RGB/CMYK conversion
* Add: Conversion lumen/lux with angle and height
* Add: Preliminary compatibility with Chromebook
* Add: Notification of updates
* Add: Animation for the results
* Upd: Simplified Chinese language (by Tian Hongpeng)
* Upd: Arabic language (by zawazaid and Abdusalam Qaissia)
* Upd: Magyar language (by Sándor Marosi)
* Upd: Portuguese [PT] language (by Leandro Sousa)
* Upd: Persian language (by Sajjad Asadbeygi)
* Upd: Russian language (by GudWin)
* Upd: Czech language (by Skipy)
* Upd: Polish language (by Adi Stiller)
* Upd: Greek language (by Tasos Pergantis)
* Upd: Romanian language (by Silvian Ionescu)
* Add: Privacy policy
v2.2.2.1
August 09, 2016
*Fix: FB bugfix
v2.2.2
August 08, 2016
* Add: Preliminary compatibility with Android N
* Upd: Persian language (by Sajjad Asadbeygi)
* Upd: Croatian language (by Goran Arabadžić)
* Add: FAQ for invalid ProKey
v2.2.1
May 22, 2016
* Add: Search bar
* Add: Romanian language (by Silvian Ionescu)
* Upd: Portuguese [BR] language (by Matheusiin Villela)
* Mod: Luxmeter calibration up to 300%
* Fix: Input lux into the “Calculation of total flux” now accept decimal numbers
* Fix: Update of utilization coefficient
* Fix: MultiprocessPreferences bug
* Fix: Bug 8bit request code
v2.2.0
March 31, 2016
* New: Luminance converter
* New: Illuminance converter
* New: SMD led
* New: Material design also for older devices
* Add: Foot-Lambert and Nox into “Unit of measurement”
* Add: Formulary icon into action bar
* New: Buttons layout
* Fix: Feet bug into Luminance on the floor
* Fix: Distinction between GU10 and GZ10
* Add: Portuguese [BR] language (by Fraga Junior)
* Upd: Portuguese [PT] language (by Leandro Sousa)
* Upd: Vietnamese language (by Nguyễn Duy Trung)
* Upd: Czech language (by Skipy)
* Upd: Polish language (by Adi Stiller)
* Upd: Greek language (by Tasos Pergantis)
* Upd: Bulgarian language (by Yassine)
* Add: Debug command line
v2.1.0
February 11, 2016
* New: Bulb shapes
* New: Unit of measurement
* New: Visible spectrum
* Upd: Turkish language (by Bekir Aydogdu)
* Upd: Polish language (by Adi Stiller)
* Upd: Portuguese [PT] language (by Leandro Sousa)
* Upd: Czech language (by Skipy)
* Upd: Russian language (by GudWin)
* Upd: Updated Arabic language (by Abdusalam Qaissia)
* Upd: New table layouts
* Fix: Compatibility with Android 6.0
v2.0.0
December 04, 2015
* New: Illuminance on the floor
* New: Energy saving lamps
* New: Formulary
* New: Symbols
* Mod: Color temperature is now free
* Add: Splash screen
* Fix: Improved some layouts
* Upd: Portuguese [PT] language (by Leandro Sousa)
* Upd: Vietnamese language (by Nguyễn Duy Trung)
* Upd: Turkish language (by Bekir Aydogdu)
* Upd: New license check of the Pro Key
v1.1.11
September 16, 2015
* Add: “Right To Left locales” for arabic language
* Upd: Deutsch language (by JoHa)
* Fix: Improved some layout-large
* Fix: Size of tube T5
v1.1.10
July 15,2015
* Add: Added Czech language (by Skipy)
v1.1.9
May 20, 2015
* Add: Added Lithuanian language (by Martynas Patinskas)
* Add: Added Simplified Chinese partial language (by Min Li Lim)
* Upd: Updated Arabic language (by Abdusalam Qaissia)
* Upd: Updated Turkish language (by Bekir Aydogdu)
* Imp: Improved some layout
v1.1.8
April 01, 2015
* Add: Added & Update Vietnamese language (by Nguyễn Duy Trung)
v1.1.7
March 31, 2015
* Add: Ability to sort calculations
* Add: Added Persian language (by Behnam Lashgari TJ.)
* Add: Added Croatian language (by Goran Arabadžić)
* New: Material Design Theme for Android 5.0
v1.1.6
December 16, 2014
* New: Power supply for strip led
* Fix: Fixed some illumination values
* Add: Added Bulgarian language (by Hristo Ganchev)
* Add: Added Polish language (by drzordz)
* Upd: Updated Portuguese [PT] language (by Leandro Sousa)
* Upd: Updated Russian language (by Djek.Energetik)
* Add: Faq
v1.1.5
October 10, 2014
* Add: Added Turkish language (by Bekir Aydogdu)
v1.1.4
September 08, 2014
* Add: Added Arabic language (by Youssef Mimouni)
* Add: Added Greek language (by Tasos Pergantis)
* Imp: Improved decoding color codes of fluorescent tubes
v1.1.3
August 17, 2014
* Add: Added German language (by Eindringling)
* Add: Added Serbian language (by Saša Fišić)
* Add: Added Hungarian language (by Tamás Fegyveres)
* Imp: Improved some landscape layout
v1.1.2
July 29, 2014
* Add: Added Portuguese language [PT] (by Leandro Sousa)
v1.1.1
July 25, 2014
* Available the new app “Electrical Cost”
* Add: Added Russian language (by Djek.Energetik)
* Add: Added Spanish language (by Gameriven)
* Add: Support serial number
v1.1.0
July 07, 2014
* New: Lux meter
* New: Typical led characteristics
* New: Conversion Lux / Foot-Candle
* New: Compare power
* Add: “Cold start time” and “Hot restart time” of lamps
* Add: Wiring diagram of lamps
v1.0.4
June 20, 2014
* Add: Check update
* Add: Support for Pro Key Personal
v1.0.3
June 17, 2014
* New: Compensation of lamps
* New: Possibility to preview the PRO calculations
v1.0.2
June 04, 2014
* New: French language
* Add: Others lamp fittings
* Add: Mixed light lamps, induction lamps
* Add: Luminous flux
* Fix: Issue multiline TextView on some devices
* Fix: Holo Dark theme for some devices
* Fix: Image low pressure sodium lamp
v1.0.1
May 24, 2014
* Fix: Correct color theme Holo.Light
* Fix: Correct color of the spinners on older devices
v1.0.0
May 19, 2014
* Release app