PDF Tool App vs 小小作家
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Tool App
A lightweight and fast PDF reader with a clean interface. It offers automatic progress saving and multiple viewing modes for documents. File management features allow easy transfer from PC.
- Fast PDF opening
- Automatic reading progress save
- Book collection and table view modes
- File transfer via Wi-Fi or cable
- Lightweight and stable performance
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Pdf reader is a simple, tiny and useful Pdf reader. Pdf reader features: * Simple: the interface is fresh, the view window has many choices. * Stability: perfectly compatible with your current PDF ecosystem. * Light weight: small volume, not too much equipment resources. * Fast: open the PDF file at the fastest speed, without long waiting. * Automatic: automatic record file reading progress, next time open the page directly in the last reading. * Mode: show book collection mode and table view mode. * File management: * support transfer files from PC to Phone with wifi. * support transfer files from PC to Phone with cable. If you like Pdf reader, consider leaving an evaluation in the App Store, which is very important to us If you are not satisfied with Pdf reader, please contact us by mail thanks. Email:immouseshi@gmail.com
小小作家
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小小作家是一款专为小学 1-6 年级学生设计的中文日记 App。孩子对着手机讲今天发生了什么,App 帮你改写成一篇符合年级的好日记;抄到本子上,拍张照,还能得到 AI 老师的点评。把写作文变成每天睡前 10 分钟的愉快对话。 开口就能写日记 - 按住麦克风按钮,像给家人讲故事那样自然 - 一次可以录多条,想起什么就再说一段 - 实时转写,每条都能单独回放、修改、删除 - 遇到卡壳,App 会用年级合适的小问题引导她往下讲 AI 改写,保留孩子的声音 - 根据年级匹配语感和句式难度(一年级短句、六年级长句) - 保留孩子自己说的关键细节,不是把原话抹平成模板 - 每一处帮她补上的话都标出来,讲明白为什么这样写 - 可选的写作风格:鲁迅、冰心、任溶溶、曹文轩等多位名家(仅风格参考,不包含原作品内容) - 自动避免常识错误,归属关系不会被写反 方格纸抄写 - 原生方格纸视图,一格一字,像语文课本的习字册 - 楷体中文字体,笔画结构更接近小学课堂习字范本 - 加粗标出 AI 改写时补充的词句,让孩子知道哪些是自己说的 - 屏幕直接看着抄,或者打印出来慢慢练都合适 拍照就有老师点评 - 抄完后拍一张本子的照片,App 读出手写的字 - 拍照前先自查漏字、纸张位置和光线,减少拍错页、拍模糊 - 自动识别三种情况,给出不同类型的点评: 照抄:逐字对照,指出错字、漏字、笔画不规范 同主题原创:用自己的话重讲,点评孩子文字里的亮点 拍错了页:温柔提示重拍,不扣分 - 原创也能得高分,用自己的话写同一件事是被鼓励的 - 对比区一屏切换,不挤一团 - 每次给一条可以明天试试的写作小挑战 家长区,完全掌控 - 进入需要答一道两位数加法题,孩子无法绕开 - 可以切换年级、录音保留时长(默认生成后立刻删,可选 7 / 30 / 永久) - 一键云端关闭模式,全部 AI 任务走设备端,不联网 - 查看所有历史日记、回看孩子每一天的成长 - 本周进步卡:本周写了几篇、拍照几次、哪里被升级、下次练什么一眼看懂 - 写作魔法墙:10 种核心写作技法的累计追踪 - 教学法说明:每一步设计背后参考了哪些教学研究,给家长一个透明的对照 隐私优先 - 不需要账号、不需要手机号、不需要实名 - 没有广告、没有追踪、没有用户画像 - 没有第三方分析或崩溃上报 - 孩子的录音永不上传,默认生成完就从手机删除 - 照片只上传压缩后的缩略图(长边 ≤ 512 像素,去除 EXIF 定位) - 所有日记、照片只保存在你的手机上,卸载 App 即全部清除 适合的年龄 小学 1-6 年级(约 6-12 岁)。一年级孩子可由家长陪伴录音;三年级以上可独立使用。 价格说明 目前处于试运行阶段,完全免费。无广告、无追踪、无账户、无订阅。孩子的作品只保存在你的手机里。未来可能根据服务器成本收取一个合理的费用,会在 App 内提前告知,现有用户继续享受原有体验。 更多信息 隐私政策:https://writer.built4.fun/privacy 使用条款:https://writer.built4.fun/terms 技术支持:https://writer.built4.fun/support 联系邮箱:happinesz+teenywriter@gmail.com
Screenshots
Verdict
The clearest difference is update cadence: 小小作家 at every 2 weeks against PDF Tool App's every 2 months. PDF Tool App's advantage is iOS requirement (10.0 vs 18.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
PDF Tool App ships an update every 2 months, 小小作家 every 2 weeks. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.
| Parameter | PDF Tool App | 小小作家 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 38 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | 洪彬 林 | 建锋 林 |
In-app purchases
PDF Tool App
No in-app purchases
小小作家
No in-app purchases









