Comparison

快乐学 vs KeyPass

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

Head to head

About

快乐学

Features

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快乐学-学习好帮手，使用iPhone,iPad就可以随时学习。应用里是人教语文，数学，英语一年级到三年级各单元的练习题。英语有各单元的单词，以及各种单词的听写，翻译等练习。语文有各课程的生字，以及各种识字，拼音，组词练习。数学有各单元的计算题，应用题等练习。【特色功能】题目从题库中智能生成各类型不同的题目。做错的题目会自己记录，方便复习时再重新做一遍。还可以标记重要的题目反复练习。还有期末测试进行总复习。

About

KeyPass

Features

Read full description

KeyPass 是专为剑桥英语 KET / PET / FCE 考试备考设计的全能学习助手，帮助中国学生科学高效地备考。【核心功能】智能词汇闪卡 - 覆盖 KET/PET 完整核心词库（928 词） - SM-2 间隔复习算法，科学安排复习时间 - 支持每日学习目标，养成打卡习惯 AI 口语评测 - 模拟真实 KET/PET 口语考试场景 - AI 即时打分，分析发音与表达 - 多种题型：自我介绍、看图说话、日常对话题库练习 - KET 阅读完整题库 - 练习模式 & 模拟考试双模式 - 详细解析，查漏补缺学习追踪 - 每日打卡，记录学习进度 - 考试倒计时，清晰把握备考节奏 - 家长报告：14 天学习趋势与里程碑推送【适合人群】准备 KET（A2 Key）、PET（B1 Preliminary）或 FCE（B2 First）考试的学生【订阅说明】 - 免费版：每日 3 次口语评测，基础词库 - Pro 版：无限口语评测，完整 928 词库，全题库，家长报告，无广告 - 月度或年度订阅（年订省 50%） - 订阅自动续费，可随时在 App Store 取消

Screenshots

快乐学4 screens

KeyPass4 screens

Verdict

The call

The clearest difference is in-app purchases: KeyPass at none against 快乐学's 10. 快乐学's advantage is iOS requirement (9.0 vs 14.0). On price, update cadence, ads and device support 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. 快乐学 sells 10 one-off in-app purchases. KeyPass asks for nothing beyond the download.

UpkeepUpdate frequency

快乐学 ships an update every 4 months, KeyPass every 2 months. The most recent releases landed on September 13, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 4 level

快乐学 versus KeyPass: the parameters behind the verdict, then further details
Parameter	快乐学	KeyPass
Price	Free	Free
Update frequency	Every 4 months	Every 2 months — better
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	14.0
Further details — not scored
Size	53 MB	22 MB
Age rating	4+	4+
Developer	郴石	斯理梁

In-app purchases

10 purchases

快乐学

One-time10

小学语文二年级(上册)$2.99
小学语文三年级(上册)$2.99
小学语文三年级(下册)$2.99

Show 7 more

小学语文二年级(下册)$2.99
小学英语一年级(下册)$2.99
小学英语一年级(上册)$2.99
小学英语二年级(下册)$2.99
小学英语二年级(上册)$2.99
小学英语三年级(上册)$2.99
小学英语三年级(下册)$2.99

None

KeyPass

No in-app purchases

Questions

Is 快乐学 free?

快乐学 is free to download, with in-app purchases available.

Is KeyPass free?

KeyPass is free to download, with no in-app purchases.

Do 快乐学 or KeyPass have ads?

Neither 快乐学 nor KeyPass shows ads.

Which is updated more often, 快乐学 or KeyPass?

快乐学 ships an update every 4 months, and KeyPass every 2 months. Most recently, 快乐学 was updated on September 13, 2026 and KeyPass on September 21, 2026.