This app was mentioned in 6 comments, with an average of 3.67 upvotes
Apps on sale for 10 cents:
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Sam Smith - In The Lonely Hour (Google Play Exclusive Deluxe Edition)
Books
Runtastic Pro has Live Tracking. But I never used it, so I don't know the details.
Runtastic is a good app for running.
Slack is good for team / family group communications.
AWS Console for when you need to manage your servers and JuiceSSH when you need to actually do something on them.
Google Opinion Rewards is fun. I don't use it every day, but I do use it any day a survey is available.
I don't normally pass around app discount links, but these are 2 fitness apps for 5 pesos each!
https://play.google.com/store/apps/details?id=com.runtastic.android.pro2
https://play.google.com/store/apps/details?id=com.runtastic.android.situp.pro
If you don't have a credit card, you can charge directly to your phone's load (if prepaid) or bill (if postpaid). These steps are for Globe, but it's pretty much the same steps for Smart. Note that if you buy them with your load, it becomes Php 5.49 due to VAT.