Free iPhone apps by Jason Chen — learning, planning, photos, elder & student phones, and everyday tools on the App Store.
Developer & copyright: Jason Chen
Every app below is developed by Jason Chen.
以下应用均由 Jason Chen 开发。
Offline English · v1.2
Offline A1–C2 lessons with bilingual stories, visual vocabulary, story cinema, and speaking practice from your current day’s story. Start Day 1 without an account.
离线 A1–C2：中英双语故事、图示词汇、故事影院，以及围绕当天故事的口语练习。无需账号即可开始第 1 天。
Junior biology weekly practice
Weekly guided biology practice for PEP Grade 7 Volume 1 — intro videos, knowledge clips, notes, and quizzes. Free, on-device, no account required.
人教版七年级上册生物每周练：导学视频、知识短片、图文精讲与过关小测。免费、本机学习、无需登录。
Voice math in English & Chinese
Speak a calculation or use the scientific keypad. History, widgets, and Siri Shortcuts — free, no account required.
说出算式或使用科学键盘。支持历史、小组件与 Siri 捷径——免费，无需注册。
Keep the best, delete the rest
Find similar, burst, and duplicate photos on your iPhone. Clean privately on-device and free up space.
在 iPhone 上查找相似、连拍与重复照片。本地私密清理，释放存储空间。
Role-oriented task planning
Plan work and life by role — tasks, focus, and progress in one assistant. Developed by Jason Chen.
按角色规划工作与生活——任务、专注与进度集于一身。由 Jason Chen 开发。
Classic dialer & SOS for elders
A calm Nokia-style phone for parents and grandparents — favorites, SOS, alarms, and call protection with Apple Screen Time. Free, no ads.
给父母长辈的简洁手机：大按键拨号、收藏、SOS、闹钟与来电防护，基于 Apple 屏幕使用时间——免费无广告。
Homework focus for students
Help kids stay on homework and bedtime schedules with Screen Time shields, a parent PIN, and a clear focus home screen. Free, no ads.
帮助学生专注作业与作息：屏幕使用时间屏蔽、家长 PIN 与清晰的专注主页——免费无广告。