Tomaru: Never Forget Vocab Android
Tomaru: Never Forget Vocab is #59 in Education Free on Google Play in Taiwan and charting in 1 of 23 countries we track.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperTHEFOOL LABS
CategoryEducation
PriceFree
Released
Installs1k+
Rating★ 4.9 (0)
Updated–
Content ratingEveryone
Rating
4.9 ★
0 ratings
Measured
Best rank now
#59
Education FreeMeasured
Tomaru: Never Forget Vocab on Google Play
App details
App ID
io.tomaru.app
Publisher
TSENG YINGLUEN
Publisher country
高雄市, Taiwan 806
Content rating
Everyone
Tomaru: Never Forget Vocab downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Tomaru: Never Forget Vocab's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: In-app purchase-led
How Tomaru: Never Forget Vocab makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Taiwan | EducationFree | #59 |
Apps near Tomaru: Never Forget Vocab on the chart
Education Free, around #59.
Ratings
Google Play, worldwide.
Rating
4.9 ★
0 ratings
Measured
Ratings
0
Measured
About Tomaru: Never Forget Vocab
Never forget a word you've learned. The system tracks your memory and shows each card right when it fades. All the Japanese flashcards and Korean flashcards you need are already here.
【Never forget a word you've learned】
The FSRS spaced repetition algorithm calculates the exact moment a word slips from your memory and brings it back to your screen. You do not set any parameters. Spaced repetition works best when it is personal, so after enough reviews, the system uses your history to recalculate 21 memory model parameters. Your schedule runs on your personal retention data to help you learn Japanese words and learn Korean words effectively, rather than relying on a group average.
【Know if you have time before you start】
When setting up a plan, you see a day-by-day simulation showing the exact date you will finish and your predicted daily review count. It is not just dividing the total by days. Set a target date, and the daily load adjusts automatically. You see a clear calendar of your workload before you begin studying your Japanese flashcards or Korean flashcards.
【Start with the most effective cards when you only have 10 minutes】
Input how many minutes you have today. The system sorts your due cards by the memory gained per second, giving you the most valuable reviews first. You see a focused list built for your time limit, rather than a random batch or starting from the top. This makes spaced repetition fit into any schedule.
【The vocabulary you need is already made】
Choose from built-in decks like JLPT vocabulary covering N5, N4, N3, N2, and N1. You will also find Everyday Japanese Conversation, Japanese Daily Life vocabulary, and Hiragana & Katakana. For Korean, we provide TOPIK vocabulary including TOPIK I and TOPIK II, alongside Common Korean 3000 Words. Each card displays example sentences with native English translations, parts of speech, grammar notes in your native language, and high-quality audio. You have everything you need to master JLPT vocabulary (N5, N4, N3, N2, N1) and TOPIK vocabulary.
【Words can come from anywhere】
Paste an article to learn Japanese words, and the system tokenizes the text, reverting verbs to their dictionary forms. Take a photo to recognize text, or highlight a word in any app to add it via the system menu. Ask how to say a sentence, and the answer becomes a card to help you learn Korean words. You can build manual cards with image occlusion, and they all look just as complete as the built-in decks.
【Review without opening the app】
You can tap your answers directly on the home screen widget. Learning reminders let you know when it is time to clear your queue right from your phone's background.
【See exactly how much you remember】
Your dashboard shows a chart predicting your future daily reviews. You can also read the exact number of words you will remember for over 30 days and 90 days.
【No limits on core features】
The number of cards, reviews, decks, scheduling, and statistics have no upper limit. Yo
【Never forget a word you've learned】
The FSRS spaced repetition algorithm calculates the exact moment a word slips from your memory and brings it back to your screen. You do not set any parameters. Spaced repetition works best when it is personal, so after enough reviews, the system uses your history to recalculate 21 memory model parameters. Your schedule runs on your personal retention data to help you learn Japanese words and learn Korean words effectively, rather than relying on a group average.
【Know if you have time before you start】
When setting up a plan, you see a day-by-day simulation showing the exact date you will finish and your predicted daily review count. It is not just dividing the total by days. Set a target date, and the daily load adjusts automatically. You see a clear calendar of your workload before you begin studying your Japanese flashcards or Korean flashcards.
【Start with the most effective cards when you only have 10 minutes】
Input how many minutes you have today. The system sorts your due cards by the memory gained per second, giving you the most valuable reviews first. You see a focused list built for your time limit, rather than a random batch or starting from the top. This makes spaced repetition fit into any schedule.
【The vocabulary you need is already made】
Choose from built-in decks like JLPT vocabulary covering N5, N4, N3, N2, and N1. You will also find Everyday Japanese Conversation, Japanese Daily Life vocabulary, and Hiragana & Katakana. For Korean, we provide TOPIK vocabulary including TOPIK I and TOPIK II, alongside Common Korean 3000 Words. Each card displays example sentences with native English translations, parts of speech, grammar notes in your native language, and high-quality audio. You have everything you need to master JLPT vocabulary (N5, N4, N3, N2, N1) and TOPIK vocabulary.
【Words can come from anywhere】
Paste an article to learn Japanese words, and the system tokenizes the text, reverting verbs to their dictionary forms. Take a photo to recognize text, or highlight a word in any app to add it via the system menu. Ask how to say a sentence, and the answer becomes a card to help you learn Korean words. You can build manual cards with image occlusion, and they all look just as complete as the built-in decks.
【Review without opening the app】
You can tap your answers directly on the home screen widget. Learning reminders let you know when it is time to clear your queue right from your phone's background.
【See exactly how much you remember】
Your dashboard shows a chart predicting your future daily reviews. You can also read the exact number of words you will remember for over 30 days and 90 days.
【No limits on core features】
The number of cards, reviews, decks, scheduling, and statistics have no upper limit. Yo