Monetization of the app

Donates disappear, want that everything is free... but you need to monetize.
You have cheap or go? )
And what's wrong with the donation, all for free, but if someone will want to throw 10 bucks, I have personally done it more than once.

You can paste is somewhere someone's. For example, small banners a La icq.

IMHO
Well, as an option, as we have in Russia such large lingua-centers or whatever.
You can agree to release a stylized version of them. Add their name somewhere prettier(sorry not rocked the program) About the cards in the dictionary there. You can even invent a separate functionality for them. For example alternative options of the transfer from the Lingva centre. And writing — Basic translation to read.
Well, vladochka with offices lingua across Russia, with phone numbers, addresses, Yes, even schedules. Generally you have a wishlist customers themselves tell, the main thing to offer.
Just the situation here is — you Want free, don't donate, don't download any of the banners on the Internet. There are generally three main option: Pays the user pays the sponsor, and donate. ) You get the only option with a sponsor more suited.
PS Lingva centre for example say, we in the city only they know.

I would have hung on e-junkie and untwist where NT. Do with your app.

donate?
The extended version?
By the way, many combine these two concepts in one. For example Titanium Backup under OS completely free, but there donate-version for 4$ with enhanced functionality.

A donation and a paid version in Russia are very bad. Better as already wrote, the paid extended version, which will be much easier (for example, word jumble, or more words you can remember)

Donate is no "PayPal only with credit card", always with the possibility of paying via SMS, WebMoney, Yandex, QIWI. So anyone can specify an arbitrary amount, which is ready to leave.
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Banners or affiliate toolbar included with the program (be sure to include a check for the waiver of its installation).