単語カード アプリBestflip -TOEIC・資格対策

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About this app

[New Content] TOEIC English Vocabulary Decks Now Available! All Decks Free to Download!

Bestflip is a memorization and vocabulary card app developed for working professionals who want to learn English efficiently.

Automatic translation function and CSV bulk registration significantly reduce the effort required to create vocabulary cards.

The app can be used without an internet connection, turning your commute time into skill-building time.

■ 4 Reasons to Choose Bestflip
✅ Create Vocabulary Cards in 5 Seconds with Automatic Translation
Simply enter the word you want to memorize and press the "Get Meaning" button. The Japanese translation is automatically entered, reducing vocabulary card creation time by 95%. Business English and technical terms can be quickly registered and used for memorization.

✅ Increased Efficiency with CSV Bulk Registration
Import a CSV file created on your PC to register words all at once. Easily create vocabulary cards for frequently appearing words in Eiken and other qualification exams, as well as business English.

✅ Smooth Learning with One-Handed Operation
Learn vocabulary cards comfortably with one hand, even on your commute. With a single swipe, you can categorize your memory level into four stages (◎ Perfect, ◯ Can Remember, △ Unclear, × Completely Unreliable).

✅ Efficient Review Based on Memory Level
You can narrow down the scope of the review based on your learning results. Because you can focus on the vocabulary cards you struggle with, you can see results in a short amount of time.


■ Recommended for:
* Working professionals who want to make effective use of their commute time
* Those aiming for high scores on English proficiency tests
* Those who want to efficiently memorize business English
* Those who don't want to spend time creating flashcards
* Those who want to strengthen their English skills for overseas assignments or promotions

■ Main Features
【Learning Modes】
* Flashcard Learning: Classify memory level with flick gestures
* Multiple Choice Questions: Check memory retention with multiple-choice questions
* Question Range Settings: Narrow down the learning range based on memory level
* Random Questions: Repeat learning by changing the order
* Reverse: Switch between Japanese and English/Japanese

【Flashcard Registration】
* Automatic Translation: Automatically input the meaning of words
* CSV Import: Bulk registration from PC
* Manual Input: Freely customizable
* Deck Management: Organize flashcards by theme

【Supported Languages】
English, Korean, Spanish, French, Italian, German, and other multilingual support

■ User Feedback
"The ability to add and correct automatic translations almost perfectly is also convenient." - Kii328
"It's incredibly convenient because I can import CSV files into my own vocabulary list!" - Goncha.
"I use it every time I take a test. I think it's the easiest vocabulary app to use." - Senkou

■ Ideal for English Proficiency Test Preparation
- Efficiently memorize frequently appearing vocabulary
- Learn business English expressions practically
- Can also be used for listening comprehension (audio function planned)
- Numerous success stories of score improvement

■ Useful in Business Situations
- Learn expressions usable in meetings and presentations
- Improve vocabulary for English emails
- Prepare for overseas business trips and assignments
- Manage industry-specific terminology

■ Supports Continued Learning
- Visualize memory progress to feel your growth
- Record learning history
- Goal setting function (coming soon)
- Push notifications to establish a learning habit

■ Frequently Asked Questions
Q. How accurate is the automatic translation?
A. While it uses AI for translation, it's not 100% accurate. Please be sure to check and correct important words.

Q. How do I import a CSV file?

A. The official website: https://study.bestop.jp/bestflip-csv-import/
provides detailed instructions with images. Registered words can be used as flashcards for memorization.

Q. Can I use it offline?
A. Once registered, flashcards can be used for offline learning.

Q. Can I use it for learning other languages?
A. Yes, it supports multiple languages ​​besides English, including Korean, Spanish, and French. You can also input Japanese, such as for memorizing subjects other than the pentagon.

■ From the Developer
Bestflip was developed with the goal of being a "tool for busy working adults to learn English efficiently."
We focused on simple operation and time-saving features through automatic translation,
creating a "truly user-friendly flashcard app."

Those 30 minutes of your commute can become learning time that changes your career.
Start efficient flashcard learning with Bestflip today!

Official Website: https://study.bestop.jp/bestflip-product/
Inquiries: https://study.bestop.jp/bestflip-feedback-form/

Bestflip - Turn your commute into time for growth.
Updated on
Apr 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 5 others
Data is encrypted in transit
You can request that data be deleted

What’s new

内部処理を修正しました。
Content rating
Everyone
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App support

About the developer
Makoto Saito
info@bestop.jp
Japan