I made a vocabulary app (Avocado) and would love some brutally honest feedback from Korean learners
▲ 27 r/TOPIK+1 crossposts

I made a vocabulary app (Avocado) and would love some brutally honest feedback from Korean learners

Hi everyone! I’m a solo developer looking for honest feedback from people who are actually learning Korean.

I built a vocabulary app called Avocado. It supports several languages, but Korean is one of the main languages I designed it around. I tried to combine the features I personally wanted while studying into one app.

Adding words manually can be tedious, so I spent a lot of time on the photo-import feature. You can take a picture of a textbook or vocabulary page, and the app extracts the words and automatically fills in their meanings, example sentences, and pronunciation information.

You can also add words individually, paste an entire list, or import a CSV file.

If you type a topic such as “ordering at a cafe” or “common K-drama phrases,” the AI can generate a custom vocabulary set for you. You can review the results and remove any words you don’t want before saving the list.

For Korean learners, the app includes:

  • Basic, intermediate, and advanced Korean vocabulary decks based on frequency data from the National Institute of Korean Language
  • TOPIK I and TOPIK II essential vocabulary decks
  • Practical themed lists for situations such as convenience stores, food delivery, clinics, markets, and hiking
  • Lists covering Korean slang, onomatopoeia, and expressions from historical dramas

The app is suitable for beginners as well as intermediate and advanced learners. Beginners can start with the built-in basic Korean and TOPIK I lists instead of creating everything from scratch.

There are four study modes:

  • Flashcards
  • Quizzes
  • Example-sentence practice
  • Autoplay and shadowing for listening and repeating

It also has a gentle spaced-review system. Words you have memorized return at gradually increasing intervals. Daily reviews are capped at 20 words so that missing a few days doesn’t leave you with hundreds of overdue cards.

The app currently supports Korean, English, Japanese, Chinese, Vietnamese, and Spanish. You can choose the language of the words and the language used for their meanings. Once words have been saved, you can study them offline.

Pricing:

The built-in vocabulary lists and all four study modes are free. The free tier is ad-supported and includes 50 AI-processed words per day, with additional usage available through rewarded ads.

Pro removes ads and includes 3,000 AI-processed words per month with no daily limit. It costs approximately US$2.99/month or US$27.99/year, with localized pricing shown by Google Play or the App Store. Eligible users may see a 7-day free-trial offer at checkout.

You can also use your own Gemini API key for unlimited AI usage without subscribing, although this does not remove ads. There are no other required purchases or cancellation fees.

I worked hard on the app, but I’ve reached the point where feedback from actual learners is much more useful than my own assumptions.

I’d especially like to know:

  • Does anything feel confusing or uncomfortable to use?
  • Do the Korean meanings and example sentences sound natural?
  • Are the beginner and TOPIK vocabulary lists useful?
  • Is the photo-import process easy to understand?
  • What vocabulary lists or topics should I add next?

Positive or negative feedback is equally welcome. I’ll answer all questions publicly in the comments so that the information is available to everyone.

Thanks for taking a look!

Android: https://play.google.com/store/apps/details?id=com.soksokvoca

iOS: https://apps.apple.com/app/id6776714408

u/mountaingirl_treeguy — 4 days ago
▲ 7 r/TOPIK+1 crossposts

I made a vocabulary app and would love your honest feedback! (A Voca Do)

Hi everyone. I’m looking to get some brutally honest feedback from Korean learners on a vocabulary app I built.

It's called A Voca Do. It is actually a general vocabulary app that you can use for Korean, as well as other languages. I built it by putting together all the features I personally felt were really necessary while studying. Here is what it does:

  • Adding words can be a hassle, so I focused a lot on the camera feature. If you take a picture of a page in your textbook, the app extracts the words and fills in the meanings, example sentences, and pronunciation all at once. (You can also type them manually, paste a list, or import a CSV.)
  • If you just type in a topic like "ordering at a cafe" or "common Kdrama phrases," the AI will generate a custom vocabulary set for you. You can easily remove the ones you don't like before saving.
  • For Korean learners, I included beginner, intermediate, and advanced TOPIK words based on the National Institute of Korean Language's frequency list. This is great if you hate starting from scratch.
  • There are four study modes: flashcards, quizzes, example sentences, and an auto-play/shadowing mode which is great for just listening and repeating.
  • It uses a smart review system so words come back right before you forget them. I also capped the daily review limit, so you won't get overwhelmed by a backlog of hundreds of cards even if you skip a few days.
  • You can use it to study Korean, of course, and other languages are also supported.

The free version has some ads and a 100-word daily limit for the AI features. The Pro version is $2.99/month and removes all of that. But as a tip: if you put your own free Gemini API key in the app's settings, you can completely bypass the AI limit without paying.

I worked really hard on this, but I really need to know how it feels from an actual learner's perspective. Please let me know if anything is uncomfortable to use or if there's anything lacking. Any feedback is welcome.

Also, if there are any specific vocabulary lists or topics you'd like to see included in the app, please recommend them!

Thanks!

Android: https://play.google.com/store/apps/details?id=com.soksokvoca

iOS: https://apps.apple.com/app/id6776714408

u/mountaingirl_treeguy — 20 days ago

Please let me know.. How to Promote..!!

I've been making apps in my spare time using vibe coding (while juggling childcare), and I launched a vocabulary app on June 30th—so it hasn't even been a month yet. Unlike my big expectations, making just $0.01 a day with AdMob was honestly shocking. Yesterday, it seemed like I was the only person using the app...

I wondered if this is normal for everyone, but after reading posts on Reddit, it feels like this only happens to me and a small few, while everyone else seems to have users right upon launch.

I feel like the vocabulary app market is already saturated, making organic traffic really hard, and I honestly don't know how I should be doing marketing. I opened a YouTube channel and posted a few things on Reddit, but is this really how everyone promotes their apps?

reddit.com
u/mountaingirl_treeguy — 30 days ago

I built a vocab app to make my own studying easier — would love your feedback

Hey everyone! I built an app called Avocado: Vocabulary Builder (on both iOS and the Play Store).

You can use AI to generate word lists from any topic you're into, or grab pre-made decks. You can even snap a photo of some text and turn it straight into a vocab list!

Adding words is simple — just type a word and the AI fills in the meaning, example sentences, pronunciation, and more. There are flashcards, listening practice, and a shadowing mode too, and everything works offline so you can study anywhere.

The app is free to use (ad-supported). The AI comes with a daily free amount — top it up with a quick ad, or plug in your own (free) Google Gemini API key for unlimited use. There's an optional Pro subscription if you'd like to remove ads, but you never have to pay to use the app.

It currently supports English, Korean, Chinese, Japanese, Vietnamese, and Spanish. If there's another language you'd like to see, let me know — happy to add more!

(Would genuinely love any feedback, good or bad! Links in the comments!!)

reddit.com
u/mountaingirl_treeguy — 1 month ago

I built a vocab app to make my own studying easier — would love your feedback

Hey everyone! I built an app called Avocado: Vocabulary Builder (on both iOS and the Play Store).

You can use AI to generate word lists from any topic you're into, or grab pre-made decks. You can even snap a photo of some text and turn it straight into a vocab list!

Adding words is simple — just type a word and the AI fills in the meaning, example sentences, pronunciation, and more. There are flashcards, listening practice, and a shadowing mode too, and everything works offline so you can study anywhere.

The app is free to use (ad-supported). The AI comes with a daily free amount — top it up with a quick ad, or plug in your own (free) Google Gemini API key for unlimited use. There's an optional Pro subscription if you'd like to remove ads, but you never have to pay to use the app.

I've been studying English for a while and just wanted an easier way to build up my vocabulary, so I made this for myself — figured I'd share in case it helps others too!

It currently supports English, Korean, Chinese, Japanese, Vietnamese, and Spanish. If there's another language you'd like to see, let me know — happy to add more!

(Would genuinely love any feedback, good or bad! Links in the comments!!)

reddit.com
u/mountaingirl_treeguy — 1 month ago

I built a vocabulary app that separates the Korean words you know from the ones you're still learning — just launched, would love your feedback!

Full disclosure: I'm the developer of Avocado, the app I'm introducing here. I'm a software developer and a mom from South Korea, and honestly, a lifelong English learner. I've pretty much done it all—from a working holiday in Australia to working alongside colleagues from all over the world, and of course, grinding through exams like the TOEIC.

If there's one thing I learned from this whole journey, it's that vocabulary is everything. But you can't just memorize lists; you need to clearly separate the words you actually know from the ones you don't, and see them used in real-world context. That's exactly why I built this app.

It splits the words you've mastered from the ones you're still working on, helping you review them until they finally stick. Adding words is a breeze—just type the word, and the app takes care of the rest (like definitions and examples). You can set up your own study plans, download ready-made vocabulary decks (including beginner Korean sets), or even use AI to generate custom word lists for any specific situation.

I truly hope this app becomes a powerful tool that helps you build your Korean vocabulary effectively.

Since it's a brand-new launch, I'd love for you to try it out and let me know where I can improve. Your honest feedback means the world to me! I'll answer any questions in the comments!

Avocado — Vocabulary Builder (아보카도: 단어장 학습) — iOS & Android

Pricing, so it's clear:

- Free: 100 AI words a day (+50 for watching a rewarded ad, up to 300/day), with banner ads.

- Pro: ₩3,900/month or ₩35,900/year (around $2.99/month), for 1,000 words/day and no ads.

- Or you can put in your own free Google Gemini key and use the AI for free, with no limits.

App Store (iOS): https://apps.apple.com/app/id6776714408

Google Play (Android): https://play.google.com/store/apps/details?id=com.soksokvoca

reddit.com
u/mountaingirl_treeguy — 1 month ago
▲ 2 r/LearningLanguages+1 crossposts

I'm a mom and a developer. I spent months building the vocabulary app I always wished existed.

Hi everyone,

I know this sub is for people learning Korean, and my own story is actually about learning English — but I'm sharing here because I think the struggle is exactly the same in reverse, and because I built this with Korean learners in mind too.

I'm a software developer from South Korea, currently raising a toddler and coding whenever I can. I'm also a long-time English learner. I've done a working holiday in Australia, worked in global environments, and studied for various exams like TOEIC.

Throughout this journey, I realized one thing: vocabulary is the absolute foundation of language learning. To really master a language, you need to separate the words you know from the ones you don't, and study them with context and example sentences. And this is true no matter which language you're learning — whether it's English for me, or Korean for you.

I started out making physical flashcards by hand, and later tried almost every vocab app out there. But I could never find one that checked all the boxes. So, I decided to build it myself. After months of hard work, I finally launched my app, Avocado.

Here is what Avocado can do:

  • Effortless Word Adding: Just type a word, and the app automatically fills in the definition, example sentences, and pronunciation. It also supports voice input, photo scanning, and CSV batch uploads.
  • Smart Learning: You can study using flashcards, quizzes, and example sentences. The app separates memorized words from unmemorized ones so you can focus on what matters.
  • Custom Vocab Generation: If you have a specific situation or a niche topic you want to study, the app can auto-generate a tailored word list for you. (Pre-made lists are also available.)
  • Korean as a First-Class Language: Because I'm Korean, I made sure Korean isn't an afterthought. It comes with curated TOPIK Basic, Intermediate, and Advanced lists (based on National Institute of Korean Language frequency data), and you can study Korean from whatever language you already speak — English, Japanese, Vietnamese, and more.

I built this with the genuine hope of helping fellow language learners. Since it's a newly launched app, I would love to get your feedback.

Please give it a try and let me know in the comments if you find any bugs or have suggestions for improvement. I'd really appreciate it!

(Link to App Store Link / Play Store Link)

u/mountaingirl_treeguy — 21 days ago