CARD ACCESS vs PDF转换器，极致压缩
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CARD ACCESS
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Committed to the development and implementation of access control systems, attendance tracking systems, consumption management systems, patrol management systems, kindergarten transfer systems, access gates and parking management solutions in the field of card technology
PDF转换器，极致压缩
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QPDF 是一款强大的本地 PDF 转换与处理工具，支持扫描文档、图片转 PDF、压缩、添加水印、合并多个 PDF、OCR 文字识别等功能。所有处理均在设备本地完成，您的文件安全无忧。 核心功能】 扫描文档 - 使用相机智能扫描纸质文档，自动检测边缘 - 扫描结果一键转为高质量 PDF 图片转 PDF - 从相册选择多张图片，快速生成 PDF - 支持拖拽排序，自由调整页面顺序 - 支持 A4、Letter、自适应三种页面尺寸 PDF 压缩 - 智能压缩算法，有效减小文件体积 - 低/中/高三档质量可选，实时预览压缩效果 - 压缩前后大小对比，一目了然 添加水印 - 支持文字水印，自定义内容、字号、透明度、颜色 - 对角线/居中/平铺三种布局模式 - 实时预览水印效果，所见即所得 合并 PDF - 选择多个 PDF 文件，拖拽排序后一键合并 - 合并后可继续添加水印或压缩 OCR 文字识别 - 从图片中提取文字，支持复制和分享 - 支持中英文识别 【产品特点】 - 纯本地处理：所有文件操作在设备上完成，数据不上传云端 - 零第三方依赖：无广告、无追踪、无数据收集 隐私承诺 我们不收集任何个人数据。无分析工具。无广告。您的数据只属于您。 - 隐私政策：https://grandiose-money-076.notion.site/QPDF-33d87ce015a0806e8cfde01a5aa4946b - 使用条款：https://grandiose-money-076.notion.site/QPDF-33d87ce015a08082a27ec7d924862ff1
Screenshots
Verdict
The clearest difference is ads: PDF转换器，极致压缩 at none against CARD ACCESS's shown. CARD ACCESS's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price and in-app purchases 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.
| Parameter | CARD ACCESS | PDF转换器，极致压缩 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 17 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 润泽 吴 | 和周 吴 |
In-app purchases
CARD ACCESS
No in-app purchases
PDF转换器，极致压缩
No in-app purchases
