Date and Time Calculator Pro vs PDF快速盖章
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Date and Time Calculator Pro
Calculate the precise time difference between any two dates and times, down to the second. Easily determine future or past dates based on a specified duration. Ideal for tracking events, financial periods, or personal milestones.
- Calculate time distance between dates
- Calculate days after a specific date
- Calculate date before a specific date
- Second-level precision
- Period time calculation
Read full descriptionHide full description
Want to know how many days you can receive the Christmas gift? Want to know how many days you will have the college entrance exam?Want to know how many days the 158-day wealth management product expired? This tool helps you to calculate the distance between any time, down to second. It can also calculate the day after that day between any time. This tool is not only for wealth management but also for period time. It can tell you the date before or after a certain period.
PDF快速盖章
This app allows for quick and easy stamping of PDF documents and images. It supports batch processing for multi-page PDFs, offers a comprehensive stamp library with customization options, and simulates realistic stamp effects. It's designed for efficient mobile document signing and processing.
- Quick stamping for PDFs and images
- Batch processing for multi-page PDFs
- Customizable stamp library
- Realistic stamp effects with aging
- Precise stamp adjustment
- One-click common stamp setup
- Direct opening from external apps
Read full descriptionHide full description
一款简洁高效的PDF和图片盖章应用，让文档签署变得轻松便捷。 核心功能： • 支持PDF/DOC/DOCX文档和图片文件快速盖章 • 多页PDF文档批量处理，逐页精准定位 • 完整的印章库管理系统，支持自定义创建、编辑、查看及下载印章图片到本地 • 印章做旧效果处理，模拟真实印章质感 • 精细化印章微调功能，位置、大小随心调节 • 常用印章一键设置，提升工作效率 • 支持外部应用直接打开PDF/DOC/DOCX文件进行盖章 • 一键分享功能，盖章完成即可分享文档 使用场景： • 合同协议快速签署盖章 • 公文文件加盖公章 • 个人证件材料盖章确认 • 移动办公文档处理 产品特色： • 界面简洁，操作直观 • 专业印章库，支持批量管理 • 真实印章效果，支持做旧处理 • 无缝外部文件集成，从任何APP直接打开 • 本地处理，保护文档隐私 • 无需联网，随时随地使用 让繁琐的盖章工作变得简单高效，是您移动办公的得力助手。
Screenshots
Verdict
The clearest difference is price: Date and Time Calculator Pro at $0.99 against PDF快速盖章's $4.99. Date and Time Calculator Pro also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (15.0 vs 17.6). On 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
Date and Time Calculator Pro costs $0.99 and PDF快速盖章 $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Date and Time Calculator Pro ships an update every 5 weeks, PDF快速盖章 every 4 months. The most recent releases landed on September 25, 2026 and September 1, 2026 respectively.
| Parameter | Date and Time Calculator Pro | PDF快速盖章 |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | 4.8 (947 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 947 — better | — |
| Update frequency | Every 5 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | 山 钟 | 海昕 顾 |
Bugs and requests
Date and Time Calculator Pro
Reported bugs
3 issues- Paid version has lost the ability to calculate future dates based on weeks
- Date selection uses a scroll wheel instead of keypad entry
- Unable to copy or share calculation results
Requested features
5 requests- Add ability to change year for date time calculation
- Implement dark mode
- Add iPad version
- Add divide option in time calculator
- Add ability to calculate working days
PDF快速盖章
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Date and Time Calculator Pro
No in-app purchases
PDF快速盖章
No in-app purchases
Questions
Is Date and Time Calculator Pro free?
Is PDF快速盖章 free?
Do Date and Time Calculator Pro or PDF快速盖章 have ads?
Which is updated more often, Date and Time Calculator Pro or PDF快速盖章?
Other comparisons
