I'll download the app if this market ends at 70% or higher when it closes one week from when I create it.

I'll also download the app if I roll a 20 on a d20, irrespective of the result of this market (to incentivise accurate predictions even if I'm unlikely to think the app is good).

If I do not install the app, this resolves to N/A.

I will then use the app for a further week, resolving the market on the 4th of January.

Currently I use a mixture of the mobile website and the desktop website. For me to resolve YES I'll probably need the app to be better than the mobile website, such that in the future I will prefer to keep using the app.

Things that are likely to make me think it's good:

• User friendliness

Things that are likely to make me think it's bad:

• Bugs

• Being slow

• Notifications being difficult to personalise

(I realise I could just ask people what it's like, but I want to experiment with using a prediction market to make a decision, and I want to start with something fairly trivial (but not completely trivial; I don't like installing unnecessary apps on my phone).)