Simple Spreadsheet vs Error Note

This is a spreadsheet app can let you create sheets and edit sheets. Import excel(xlsx) files, create sheets, tables, charts, generate PDF, print sheets through AirPrint. Create sheets by templates. -Import excel(xlsx) files, view and edit worksheets in workbook. -Search in sheets. -When edit sheets, you can select multiple cells, select a whole row or column, even the whole sheet. -Support merge cells, adjust height of row and width of column. -You can insert image, checkbox and progress/column bar into cell. -Select range, then generate charts, share charts to friend. -Quick sum, insert formula, popular excel functions support. -Generate sheet to image, generate pdf. -Print preview, print through AirPrint. -Export to excel(xlsx) files, share to friends. Whenever you create class calendar, record expense and saving, todo list, grocery list, make travel plan, etc. Simple SpreadSheet may meet your needs. Please refer to our terms and privacy when you download and use this app. To use all the features this app provided, please unlock SpreadSheet PRO. by purchase it in the app. We provide one time purchease and auto-renew subscription year by year. *Subscription will automatically renew each year, within 24 hours of it's expiration. Your credit card will charged through your iTunes account.To stop auto-renewal, turn off the feature in your iTunes account settings at last 24 hours prior to your subscription's expiration. Current, active subscriptions cannot be cancelled. Any suggestions, please email to 354822@qq.com Terms of Use: http://sheetsliteus.qqzhuti.net/terms Privacy Policy: http://sheetsliteus.qqzhuti.net/privacy

Error Note — Study Smarter with Your Own Error Notebook Error Note is a simple but powerful tool designed to help students and exam-takers improve faster by reviewing past mistakes. Capture your wrong questions, organize them by subjects, and understand your weak points through clear statistics and structured review tools. Whether you are preparing for exams, learning new subjects, or trying to build better study habits, Error Note helps you focus on what truly matters: learning from your mistakes. Key Features 1. Add Mistakes Easily Record wrong questions using text, photos, or quick notes. Supports multiple subjects such as Mathematics, English, History, and more. 2. Organize by Subject and Topic Create your own subjects or chapters. Group mistakes logically and access them at any time. 3. Smart Review System Tag difficulty levels, set review reminders, and study using spaced repetition. Improve memory efficiently with guided practice. 4. Error Statistics and Weak Point Analysis See which subjects you struggle with the most. Track your progress over time and identify where to focus next. 5. Print Review Sheets Generate printable versions of selected questions, with or without answers. Ideal for exam preparation and offline study. Why Choose Error Note * Focus on mistakes that matter * Learn faster with targeted review * Build strong and consistent study habits * Track improvement clearly over time * Simple, fast, and distraction-free Error Note is a reliable companion for long-term learning and exam preparation. Study less, learn more, and make every mistake count.