How much does Singapore Currency Converter earn?

This homemade app does not require any permission, pls feel safe to use. It has kept running for 5 years since early 2013, and it will continue to run. I know many of you are still using this app, and I would like to say 'thank you'. During 5 years, a lot of issues happened, and the most critical one was Yahoo stopped providing it's data api and charts, which made this app un-usable in the second half of year 2017. In order to make it work again, in the end of Year 2017, I rent a …

This homemade app does not require any permission, pls feel safe to use.

It has kept running for 5 years since early 2013, and it will continue to run.
I know many of you are still using this app, and I would like to say 'thank you'.

During 5 years, a lot of issues happened, and the most critical one was Yahoo stopped providing it's data api and charts, which made this app un-usable in the second half of year 2017.

In order to make it work again, in the end of Year 2017, I rent a server host and implemented a backend data api, well, have to say, it was bitter and sweet (remind me durian). The most value added parts are on fulfilling the requirements from user feedback and drawing the currency charts, which required effort to explore and implement.

Anyway, too much history. Have fun !

How to use:
1) To update data, pull down the list.
2) To change position, press down the currency row and hold, select options.
3) The rest features are visible, so I will not mention further.

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Revision
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Ver 17.2 (2019-01-06)
Added ads free feature. “Existing” and "new registered" users will be given ads free till 31 Mar 2019.
It takes time/resource to develope/maintain both frontend mobile app/backend server. Thanks for understanding.

Ver 17.1 (2019-01-01)
Added ads free feature. “Existing” and "new registered" users will be given ads free till 31 Mar 2019.
It takes time/resource to develope/maintain both frontend mobile app/backend server. Thanks for understanding.

Ver 16.9 (2018-10-13)
The '+' button is not shown in some devices, due to insufficient top space, so this version readjusted the layout.
This version also added menu button, so user can directly go to any page without keeping scrolling.
Finally this version increased the line spacing to give a better look and feel.

Ver 16.8 (2018-10-03)
Based on user feedback, implemented last update date and time on the header of main screen.
Added "Refresh" button on the main screen.
Moved "Cloud" button to the "To" Screen.

Ver 16.7 (2018-09-27)
Urgent release to add the Privacy Policy on the information page.

Ver 16.3 (2018-08-16)
Enhanced web api call by reducing 50% data usage, in order to have less data usage, less power consumption, and finally save the environment : )

V16.0 (2018-08-05)
Based on user feedback, added Silver and Crude Oil, also added chart into the Calculation Page, in order to provide convenient reference.

V15.9 (2018-04-15)
Fixed bugs and added release history.

V15.8 (2018-03-04)
Added Cloud Backup and Restore. User can backup watchlist, and restore it for new phone or when the app is reinstalled.

V15.1 (2018-01-14)
Many users preferred the old UI, by long pressing the row, app will show a dialog box with option to Delete, Move Top etc. I re-implemented it in 15.1. I would like to thanks users who sent me feedback during last two weeks, as your feedback made this app practical.

Ver 1.0 (2013-01-19)
- Completed basic functions.