LightYou vs SLATE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
SLATE
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Slate is a clean, modern PDF annotation app built for professionals, students, and anyone who works with documents. Import PDFs, review files, add annotations, sign documents, and export completed work—all from your iPhone or iPad. Whether you're reviewing contracts, completing forms, marking up plans, or organizing paperwork, Slate helps you stay focused with a simple, distraction-free workspace. FEATURES • Import and annotate PDF documents • Add text anywhere on the page • Create and place signatures • Insert dates, initials, and checkmarks • Highlight important information • Draw freehand with customizable pen tools • Add stamps and annotations • Save your progress and revisit documents later • Export and share completed PDFs • Designed specifically for iPhone and iPad BUILT FOR EVERYDAY WORK Slate is ideal for: • Business professionals • Contractors and field teams • Students and educators • Real estate professionals • Office administration • Anyone who regularly works with PDF documents SIMPLE BY DESIGN Slate was designed around one goal: making document markup fast and intuitive. Every feature is focused on helping you review, complete, and share documents without unnecessary complexity.
Screenshots
Verdict
The clearest difference is in-app purchases: SLATE at none against LightYou's 1. LightYou's advantage is iOS requirement (17.6 vs 26.5). On price, 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
Both are free to download. LightYou sells 1 one-off in-app purchase. SLATE asks for nothing beyond the download.
| Parameter | LightYou | SLATE |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 17.6 — better | 26.5 |
| Further details — not scored | ||
| Size | 60 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 涛 李 | Danielle Dockery |
In-app purchases
LightYou
- LightYou Support Tip$1.99
SLATE
No in-app purchases









