Comparison

LightYou vs WorldClock

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

Head to head
About

LightYou

Save, organize, and understand web articles with AI. This app transforms your reading into a searchable knowledge vault, offering a distraction-free reader, annotation tools, and spaced repetition for long-term retention. It prioritizes user privacy with local storage and optional WebDAV sync.

Highlights
  • One-tap article saving
  • Customizable reader view
  • Highlighting and annotation
  • AI-powered chat and summaries
  • Spaced repetition review
  • WebDAV sync for cross-device access
  • Offline reading
Features
Read full description

LightYou — Your Reading Library, Reimagined Save every article worth reading. Highlight what matters. Ask AI anything about your library. LightYou turns the web into your personal, searchable knowledge vault. ▸ SAVE IN ONE TAP Share from Safari, Twitter, or anywhere on iOS. LightYou extracts the article content — no ads, no clutter, just the words. ▸ BEAUTIFUL READER Customize font, size, and theme (light, sepia, dark). Reader view strips out distractions so you can focus on what matters. ▸ HIGHLIGHT & ANNOTATE Select any text to highlight it in three colors. Add private notes. Your highlights become a searchable knowledge base. ▸ AI-POWERED UNDERSTANDING Chat with any article — ask questions, get summaries, translate passages, or explain difficult concepts. Powered by your choice of LLM API. ▸ SPACED REPETITION REVIEW LightYou surfaces articles worth revisiting on a spaced schedule, so the ideas you care about stay with you long-term. ▸ HOME SCREEN WIDGET A beautiful iOS widget keeps your top review items one glance away — with native dark mode support. ▸ WEBDAV SYNC Sync articles, highlights, and notes across all your devices via your own WebDAV server. Your data stays yours — no third-party accounts required. ▸ PRIVACY FIRST All articles stored locally on your device. AI requests use your own API keys. Optional WebDAV sync uses your own server. We never see your data. ▸ OFFLINE READING Saved articles are cached locally — read anytime, anywhere, with no connection. ▸ BEAUTIFUL IN BOTH LANGUAGES Full Chinese and English support, with typography that respects each language. Whether you're a researcher, student, writer, or just a curious reader, LightYou helps you go from "I'll read this later" to actually reading, understanding, and remembering. Start building your library today.

About

WorldClock

This app helps you quickly check global times and time differences to schedule cross-time zone communications. It supports over 100 cities, offers desktop widgets, and allows for offline use without registration.

Highlights
  • World clock with 100+ cities
  • Global time and date comparison
  • Meeting scheduling tool
  • Desktop widgets
  • Digital and analog clock styles
  • Offline functionality
  • Multi-language support
Features
Read full description

WorldClock 是一款离线优先的世界时钟应用,帮助你快速查看全球时间、完成时差对照,并安排更合适的跨时区沟通时间。无论是商务出差、国际会议、远程协作、海外客户联系,还是日常关注北京时间、东京时间、纽约时间、伦敦时间,都可以更快完成。 核心功能 • 世界时钟:支持 100+ 主要城市,重要城市可收藏、置顶、排序。 • 全球时间对照:同时查看多城当前时间、日期与 UTC 偏移,减少换算成本。 • 会议规划:选择两个城市,快速查看推荐沟通时段;会员可查看完整 24 小时时间轴。 • 桌面组件:在主屏同步显示重要城市时间,应用内样式与组件样式保持一致。 • 样式切换:支持数字时钟与表盘时钟,提供多种免费与会员视觉样式。 • 本地化适配:自动跟随系统语言,支持简体中文、繁體中文、English、日本語、한국어。 • 离线可用:核心功能不依赖联网,不需要注册账号。 适合需要世界时钟、城市时钟、时差换算、时区转换、桌面时钟、离线时钟、会议排期、跨国沟通、商务出差与国际协作的用户。

Screenshots

LightYou4 screens
WorldClock4 screens

Verdict

The call

The clearest difference is in-app purchases: LightYou at none against WorldClock's 1. WorldClock's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. WorldClock sells 1 one-off in-app purchase. LightYou asks for nothing beyond the download.

UpkeepUpdate frequency

LightYou ships an update every 3 weeks, WorldClock every 9 days. The most recent releases landed on September 12, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
LightYou versus WorldClock: the parameters behind the verdict, then further details
ParameterLightYouWorldClock
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—66.7% of reviews
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size60 MB2 MB
Age rating4+4+
Developer涛 李创宏 陈

In-app purchases

None

LightYou

No in-app purchases

1 purchases

WorldClock

One-time1
  • Lifetime membership of World Clock$0.99

Questions

Is LightYou free?
LightYou is free to download, with no in-app purchases.
Is WorldClock free?
WorldClock is free to download, with in-app purchases available.
Do LightYou or WorldClock have ads?
Neither LightYou nor WorldClock shows ads.
Which is updated more often, LightYou or WorldClock?
LightYou ships an update every 3 weeks, and WorldClock every 9 days. Most recently, LightYou was updated on September 12, 2026 and WorldClock on September 21, 2026.

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