# Tomaru: Never Forget a Word — Vocab Memory App. AI Practice.

> Spaced repetition vocabulary learning app with AI practice and pre-made decks. (iPhone/iPad app by YINGLUEN TSENG.)

- Source: https://appshunter.io/ios/app/tomaru-never-forget-a-word/id6765955927 (this page in markdown: same URL + `.md`)
- Developer: [YINGLUEN TSENG](https://appshunter.io/developer/1896139802)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.4 · 126 MB
- Languages: English, Japanese, Chinese, Chinese
- Released: 2026-06-02
- Data updated: 2026-10-12
- Monetization: free with in-app purchases

## What is Tomaru?

Never forget a word you've learned. The system tracks your memory and shows each card right when it fades. All the Japanese and Korean vocabulary you need is 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. After enough reviews, the system uses your history to recalculate 21 memory model parameters. Your schedule runs entirely on your personal retention data, not a group average, happening automatically in the background.

【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 even begin studying.

【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.

【The vocabulary you need is already made】
Choose from built-in decks like JLPT N5, N4, N3, N2, N1 Japanese vocabulary, Everyday Japanese Conversation, Japanese Daily Life vocabulary, Hiragana & Katakana, TOPIK I and TOPIK II Korean vocabulary, and 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.

【Words can come from anywhere】
Paste an article and the system tokenizes the text, reverting Japanese words 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. 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. You use the core system as much as you need.

【AI practice】
Turn your learned words into practice routines. You can do shadow reading, bidirectional translation checked by AI, grammar drills, and speaking exercises.

support@tomaruai.app

## Key features

- Spaced repetition system (FSRS algorithm)
- Pre-made vocabulary decks with rich content
- One-tap vocabulary import from text
- AI-powered shadowing, translation, and grammar drills
- Immersive focus with ambient sounds

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Tensai Basic Quarterly Subscription | $14.99 | per 3 months |
| Tensai Basic Annual Subscription | $49.99 | per year |
| Tensai Basic Monthly Subscription | $5.99 | per month |
| Tensai PRO Annual | $169.99 | per year |
| Tensai PRO Quarterly Subscription | $44.99 | per 3 months |
| Tensai PRO Monthly Subscription | $15.90 | per month |


## Is Tomaru safe?

Not enough ratings yet to assess Tomaru.

## Is Tomaru legit?

Tomaru: Never Forget a Word has limited verification signals. The AppsHunter Legitimacy Score for Tomaru is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Tomaru

### What is the learning methodology used by Tomaru?

Tomaru utilizes the spaced repetition system, specifically the FSRS algorithm, to optimize vocabulary retention. This method involves reviewing material at increasing intervals just before you're likely to forget it, ensuring long-term memory.

### Does Tomaru offer progress tracking?

While specific progress tracking metrics aren't detailed, the AI practice features like translation and grammar drills are designed to identify and address your weak spots, providing feedback to guide your learning journey.

### What are the subscription plans for Tomaru?

Tomaru offers 'Tensai Basic' and 'Tensai PRO' monthly, quarterly, and annual subscriptions, all with a 7-day free trial. Prices range from $7.99/month for Basic to $75.90/year for Basic.

### How does Tomaru handle vocabulary import?

You can easily add vocabulary by pasting text from songs, articles, or textbooks. Tomaru automatically extracts the relevant vocabulary to build your personal learning decks.

### Does Tomaru have ads?

Yes, Tomaru contains advertisements, which is common for free educational apps that offer in-app purchases for premium features.

### What devices is Tomaru available on?

Tomaru is available on iPhone and iPad devices, making it accessible for users within the Apple ecosystem.

### How often is Tomaru updated?

The app was last updated on June 26, 2026, indicating recent development and ongoing support. The latest version is 1.2.0.

### What is the age rating for Tomaru?

Tomaru has an age rating of 4+, making it suitable for a wide range of users, including younger learners.

## Version history (last 5 releases)

### 2.0.0 — 2026-10-04

Tomaru 2.0 is our biggest update yet. All your words, decks and progress are kept.
- A brand-new look everywhere, and smoother all around
- Maru's Adventure: Home changes with the time and weather. Collect rewards every day and refresh your mood!
- Adventure Party: study together with up to 6 people and keep each other on track!
- Writing challenges; redesigned grammar practice
- A streamlined study flow that saves you time
- More natural new voices

### 1.2.1 — 2026-08-24

Added Smart Scheduling. Choose how long you'd like to study, and the system will automatically plan the number of items.
Added a new “How Do You Say It?” exercise. Enter a sentence you don't know how to say in daily life, and the system will translate it, explain it, and turn it into a card for review.
Added a new “Speaking Practice” exercise. Follow our carefully designed flow and prompts to use your own AI to target weaknesses in your speaking.
Significantly improved the card creation flow, with support for image-based cards and image occlusion for learning different types of content.
Added more text-to-speech voices.
Fixed and improved most known issues.

### 1.2.0 — 2026-06-26

Added a translation extension. You can now select text anywhere to get translations and usage examples, and add words with one click.
Added a new practice mode: Reading Practice.
Added image recognition. You can now take photos of any article or textbook and let the system identify the words above.
Optimized parts of the UI.

### 1.1.9 — 2026-06-11

Added a Focus Mode to help users stay truly focused while learning.
Added a new Vocabulary Learning Mode, providing more ways for users to study.
Optimized parts of the UI and overall user experience.

### 1.1.8 — 2026-06-02

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-12.*