Zhizhi vs Apper

Open a lecture slide or an academic paper, and with each new page, you’re left puzzled—so many unfamiliar academic terms make it difficult to follow. At times like this, having a personal tutor to explain each page to you in just one minute would make the document much easier to understand. Zhizhi provides AI experts across various industries, ready in the top-right corner of every new page in your document to generate AI-powered podcast explanations of the content on that page!

Apper turns the App Store into your personal idea library. Save any app that inspires you, and Apper keeps its story fresh — version history, update cadence, ratings, and what changed since you saved it. Built for indie developers, designers, and small teams who study great apps to build better ones. LIBRARY — Your saved apps, always current - Save any App Store app in seconds, right from the share sheet - Automatic version history and an update timeline for every saved app - Update badges and a "Since you saved" view that highlights what changed - Charts that show how often an app really ships - Works across store regions EXPLORE — See what builders are saving - Cross-user rankings of the most-saved apps - Discover what other developers are paying attention to DROPS — AI usage-limit announcements in one feed - A curated log of official usage-limit reset announcements from AI providers - Cadence analysis that estimates the next likely reset window - Push alerts and a Home Screen widget so you never miss one ACCOUNTS — Your AI accounts, on the record - Keep a simple ledger of your AI subscription accounts and their status - Track spending with manual entries and automatic totals - Notes and timelines that preserve each account's history - Passwords stay in the iOS Keychain on your device — never in a database SUBSCRIPTION AND PURCHASE TERMS Apper Pro unlocks the full app and is available as an auto-renewable subscription or a one-time purchase: - Apper Pro Yearly — US$19.99 per year, auto-renewable. Introductory offer for new subscribers: US$9.99 for the first year, then US$19.99 per year. - Apper Pro Lifetime — US$49.99, one-time purchase, does not renew. Prices are shown in your local currency inside the app and may vary by region. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.weisenjoy.com/privacy