倒计时备忘录 vs PDF翻译
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
倒计时备忘录
This app helps you remember important dates and events with countdowns and timely reminders. Set alerts for upcoming milestones, anniversaries, or tasks, and even hide sensitive items behind a password.
- Countdown reminders for future events
- Timing reminders for past events
- Set reminders at specific times or days in advance
- Option to hide sensitive reminders with a password
- Multiple reminder time points
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Countdown Memo is a software that reminds you of important matters in a countdown manner, such as" There are 5 days left for the interview at xx company "," There are 26 days left for Li Lei's birthday ", etc. Main functions and features： 【Countdown reminder】 For example, "There are still" 10 days "left until going to the hospital for a physical examination; 【Timing reminder】 For example, "I have known Li Lei for 128 days"; 【 Reminder at any time 】 For example, 'Attend a classmate's wedding on October 18, 2025', you can set a reminder at 9:00 am on October 12, 2025, specify multiple time points for reminders, or set a reminder xx days in advance 【Hidden function】 For example, "There are still 25 days left for traveling to Lijiang with Chenglu", you can set this reminder item as "hidden item", which requires entering a password to view. Privacy Policy：https://tcn6282yke11.feishu.cn/wiki/ZZogwD2xLi4dhRk3vjRcyC7BnNg? User Usage Agreement：https://tcn6282yke11.feishu.cn/wiki/XQMqwQn9niQpoCk1LDTcGH8Ynoc?
PDF翻译
Translate PDFs while preserving original formatting. Get a standalone translated document or a bilingual side-by-side version. Handles complex layouts, formulas, and images, with batch processing for large files.
- Standalone translated PDF output
- Bilingual side-by-side PDF
- Preserves original layout, formulas, tables
- Batch and large file translation
- Image and scanned document translation
- Background processing with resume
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上传 PDF即刻翻译为成两份：一份纯中文独立翻译，一份左右对照双语版，排版 100% 还原，公式、表格、盖章一个不落。 【痛点终结】 论文/标书/报表全是英文，复制粘贴乱码？ 机翻生硬，格式崩成“豆腐渣”？ 对照来回翻页，眼睛和脑子一起丢？ 【核心亮点】 双文件输出： 独立译文：纯中文 PDF，直接上交、打印、分享。 中英对照：左右分栏，逐句对齐，科研引用、合同审阅一眼定位。 版式“像素级”克隆： 扫描版、双栏、页眉页码、超链接、数学公式、印章签名…全部原位保留。 批量 & 大文件翻译，500 页、200 MB 论文也能后台排队翻译，断点续传，睡一觉全搞定。 图片翻译：支持拍照、扫描文档。 【用户评价】 @科研硕博： “把 58 页 IEEE 双栏 PDF 扔进去，公式编号都在，导师直接通过！” @外贸打工人： “合同双译本 3 分钟出，客户夸我效率翻倍，其实我只点了一下。” @留学党： “对照版写论文引用太香，哪句不会直接复制，再也不怕 Chinglish。” 隐私协议：https://www.termsfeed.com/live/3f9b225e-d781-4286-a682-a7a355129ac2 会员付费协议：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: 倒计时备忘录 at none against PDF翻译's 3. PDF翻译's advantage is update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement 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. PDF翻译 sells 3 in-app purchases, starting at $7.99 per month. 倒计时备忘录 asks for nothing beyond the download.
倒计时备忘录 ships an update fortnightly, PDF翻译 every 3 days. The most recent releases landed on October 20, 2026 and October 30, 2026 respectively.
| Parameter | 倒计时备忘录 | PDF翻译 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | HangZhou Cina Information Technology Company Co.Ltd | Tianjin Junray Technology Co., Ltd. |
In-app purchases
倒计时备忘录
No in-app purchases
PDF翻译
- 连续包月$7.991 Month
- 单次翻译$0.99
- 永久会员$39.99
