What are /r/Vietnamese's favorite Products & Services?

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My vietnamese teacher also has an app that works through the basics of the language (tones, vowel sounds, etc) as well as some short stories all recorded by her (northern accent.)

Assuming you're at a basic level, Elementary Vietnamese 3rd addition has been serving me well. Cost about $21. It's geared to English language speakers though, so not sure if it fits your criteria.

https://www.amazon.com/dp/0804845328/ref=cm_sw_r_cp_apa_i_isRyFbWT2VVBS

I bought a book many years ago (15 or so) called "Making Out In Vietnamese" and it has this type of thing in it.

This is looks like the updated version

https://www.amazon.com/Making-Out-Vietnamese-Revised-Phrasebook-ebook/dp/B00HL2S4Q2

have you tried the sequel, Continuing Vietnamese?

You can find some decent ones on Amazon. https://www.amazon.com/gp/product/B0018PH3NS/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1#customerReviews

May I recommend this book to you? https://www.amazon.com/Yourself-Vietnamese-Complete-Course-Package/dp/007143433X/ref=pd_lpo_sbs_14_t_1/132-7391338-1108364?_encoding=UTF8&psc=1&refRID=VZX8FVKSYJ424NMN5XND