gemBase Pro at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Reference Education
Developer: Tommy Tsui
Price: 0 free
Current version: 2.01, last update: 6 years ago
First release : 31 Aug 2017
App size: 15.39 Mb
4.6 ( 7216 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


gemBase is an iPhone database app. It has the most different gemstones than any other apps and with detail information of each 290 gem materials. It is simple to use yet with vast amount of detail information and specially design for gemology student, jewelry sales, jewelry working professional and even gemologists.

The gemBase app has several different functions and features like:
- Gemstone search
- Gemstone database
- Gemstone weight estimator
- Gemstone glossary
- Nearly 290 different gemstones
- Detail information/ property of each gemstone

With the search function, the user can search specific information about any gems by their variety, specie, trade name, miscalled name or group of the gemstone where they belong to. Other than that, the user can also perform property search like RI, SG, pleochorism or UV response etc.

The gemBase apps database has included about 290 different gemstones and each gemstone also comes with a detail page with all the necessary information.

Another useful function of the app is a handy stone weight estimator. Once the user input the dimension of the stone, the app can return with a very accurate weight estimation.

The last function is the gemstone glossary. For people study gemology, this comes with lots of useful gemstone term information.
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Available in countries
Country Price
Canada 9.99 CAD
China 45 CNY
France 7.99 EUR
Germany 7.99 EUR
Italy 7.99 EUR
Netherlands 7.99 EUR
Portugal 7.99 EUR
Spain 7.99 EUR
UK 6.99 GBP
India 549 INR
Japan 860 JPY
Korea, Republic Of 999.99 KRW
Poland 32.99 PLN
Russia 529 RUB
Turkey 49.99 TRY
USA 6.99 USD
Korea, Republic Of 7.69 USD
Ukraine 6.99 USD
Available for devices
iPhone3GS, iPhone4, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,