Comparison

Rakuo vs 无痛日语

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rakuo

Read full description

Rakuo helps you learn languages in a natural way through the videos and books you love, combined with smart tools. Core features support cross-language learning across English, Chinese, Korean, and Japanese. Watch the videos you love and analyze their subtitles, with deep insight into how conversations work based on those subtitles. Watch English, Chinese, Korean, and Japanese videos and analyze the deeper conversation patterns within them, along with word definitions and sentence-level grammar parsing. Supports word-by-word and step-by-step analysis in English, Chinese, Korean, and Japanese, plus furigana annotations for Japanese books — so reading is no longer stressful. • Grammar Analysis Tap any sentence to see a clear breakdown of its grammar points, structure, and meaning — every grammar point can be traced back to where it appears. • Reading Mode Import English, Chinese, Korean, and Japanese books and read them with in-depth word definitions and sentence-level grammar parsing. Japanese books come with furigana readings. • AI Learning Assistant Ask questions about English, Chinese, Japanese, and Korean grammar, vocabulary, and usage. Get in-depth grammar explanations. • Vocabulary & Favorites Save the words, grammar points, and sentences you want to remember. Track when you first encountered them. • Multi-language Support The interface supports English, Japanese, Korean, and Simplified Chinese. Premium Membership Subscribe to unlock all premium benefits: 500 AI assistant messages per month 120 minutes of realtime voice conversations per month Unlimited video subtitles and Japanese read-aloud Unlimited favorites and follows Unlimited access to Rakuo Ultra/Pro offline models Free users get full access to all core features with a daily allowance. Subscriptions renew automatically. You can manage or cancel them anytime in your App Store account settings. Terms of Use (EULA): https://rakuo.top/terms Privacy Policy: https://rakuo.top/privacy

About

无痛日语

This app revolutionizes Japanese language learning with AI-powered memory algorithms and an engaging, short-video-like interface. It offers AI grammar parsing, instant dictionary lookups, and JLPT exam preparation tools. Track your progress with detailed statistics and master Japanese effortlessly.

Highlights
  • AI-driven memory algorithm (FSRS5)
  • Short-video-style word learning interface
  • One-click AI grammar parsing
  • Integrated AI dictionary lookup
  • JLPT exam preparation with real examples
  • Detailed learning progress statistics
  • Hands-free listening mode
Features
Read full description

厌倦了枯燥的背单词和复杂的语法书? 无痛日语为你带来全新学习体验。无痛日语结合创新学习交互、AI 与 FSRS5 前沿记忆算法,让日语学习变得像刷短视频一样轻松上瘾,从此告别死记硬背。 ◉ 创新交互,沉浸式刷词 告别传统的列表和卡片点击,采用类短视频 App 的上下滑动交互。每一次滑动都充满新鲜感,系统会根据你的停留时长智能判断单词的熟悉程度,让背词过程更流畅、更专注。 ◉ AI 驱动,深度理解与记忆 AI 语法解析功能让每一个例句的语法结构都能一键解析,复杂句式一目了然,真正实现学一句懂一句。 内置 AI 智能检索,遇到不懂的单词无需切换 App,即可获得精准释义、用法和例句。基于先进的 FSRS5 记忆算法,为你动态计算最佳复习间隔,将有限的精力投入到最需要巩固的知识点上,较传统艾宾浩斯算法效率倍增。 ◉ 备考利器,直击考点 内置 JLPT 历年真题例句,让你在真实的语境中学习,备考更有针对性。 随身听模式让你充分利用通勤、跑步等碎片化时间,让日语听进耳朵,培养语感。五十音图快速入门模块帮助零基础用户打下坚实基础。 ◉ 数据驱动,见证成长 提供详细的学习数据统计图表。记忆曲线、学习时长、词汇量增长、复习预测等一目了然。你的每一次进步,都清晰可见。 无论是零基础入门,还是备战 JLPT N1-N5,无痛日语都有适合你的路径。告别枯燥的死记硬背,轻松掌握日语。 ◉ 联系我们 邮 件:support@painlesswords.com 公众号:无痛单词 隐私政策:https://cn.painlesswords.com/privacy-policy.html 使用条款:https://cn.painlesswords.com/terms-and-conditions.html

Screenshots

Rakuo4 screens
无痛日语4 screens

Verdict

The call

The clearest difference is iOS requirement: 无痛日语 at 15.0 against Rakuo's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rakuo sells 4 in-app purchases, starting at $4.99 per month and 无痛日语 sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 25, 2026.

Scorecard1 real difference · 7 level
Rakuo versus 无痛日语: the parameters behind the verdict, then further details
ParameterRakuo无痛日语
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.115.0 — better
Further details — not scored
Size989 MB331 MB
Age rating4+12+
Developer颖嬿 邱Hangzhou Xiangzi Technology Co. Ltd.

In-app purchases

4 purchases

Rakuo

Subscriptions4
  • Monthly Subscription$4.991 Month
  • 3-Month Subscription$12.993 Months
  • 6-Month Subscription$24.996 Months
Show 1 more
  • Annual Subscription$39.991 Year
4 purchases

无痛日语

Subscriptions2
  • Monthly$9.991 Month
  • Yearly7 Days trial$29.991 Year
One-time2
  • Lifetime$49.99
  • Lifetime$69.99

Questions

Is Rakuo free?
Rakuo is free to download, with in-app purchases available.
Is 无痛日语 free?
无痛日语 is free to download, with in-app purchases available.
Do Rakuo or 无痛日语 have ads?
Neither Rakuo nor 无痛日语 shows ads.
Which is updated more often, Rakuo or 无痛日语?
Rakuo ships an update fortnightly, and 无痛日语 fortnightly. Most recently, Rakuo was updated on October 25, 2026 and 无痛日语 on October 25, 2026.

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