TANCHJIM vs Zlen 扫描
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TANCHJIM
Customize your TANCHJIM Bluetooth earphones with signature sound profiles and adjustable settings for a more convenient listening experience. Future updates will include a Parametric Equalizer for advanced audio personalization.
- Bluetooth device tuning
- Earphone settings adjustment
- Signature sound profiles
- Audio personalization
- Parametric Equalizer (upcoming)
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This application is dedicated to fine-tuning the performance and functionality of Bluetooth devices produced by TANCHJIM. Currently, it allows you to adjust the settings of your TANCHJIM earphones for more convenient use. The app also comes pre-loaded with TANCHJIM’s signature sound profiles, enabling you to customize your listening experience at any time. The upcoming Parametric Equalizer (PEQ) feature will significantly expand the possibilities for audio personalization.
Zlen 扫描
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Zlen 文档扫描 是一款轻快、注重隐私的文档扫描工具,为 iPhone 与 iPad 而生。打开即可拍摄,一秒把纸质文件变成清晰、方正、可分享的 PDF。 【为什么选择 Zlen】 • 原生相机,满分辨率:直连 iOS AVCapturePhotoOutput,使用传感器的最高分辨率拍摄,字迹锐利不糊。 • 实时边缘识别:基于 Apple Vision 文档分割,对准纸张即刻描出四角轮廓,拍完自动裁边。 • 一键透视校正:自动把倾斜、变形的照片拉正,扫描件看起来像用专业扫描仪输出。 • 智能白底 & 去阴影:桌面纹理、光照不均、投影都能被自动抹平,纸面干净,文字黑得清爽。 • 多页合并 PDF:连续扫描多张,一键合并为单个 PDF 文件,方便归档与分享。 • 文件命名清晰:默认按日期自动命名(例如 Zlen_扫描_20260424_01),也可随时重命名。 • 本地处理,尊重隐私:全部图像处理在设备本地完成,不上传、不联网、不收集任何个人数据。 【适合谁用】 • 学生:快速扫描课堂笔记、书本页、作业,随手归档。 • 职场人士:合同、发票、报销凭证、会议白板——一拍即得专业 PDF。 • 自由职业者 / 创业者:随时把手写草图、名片、收据变成可发送的电子文档。 • 居家生活:扫描账单、说明书、保修卡,减少纸张堆积,一搜就能找到。 【核心功能】 • 实时四角检测与跟踪 • 自动触发拍摄(可关闭) • 手动四角微调 • 彩色 / 增强 / 黑白 三种输出模式 • 单页与多页 PDF 导出 • 系统分享菜单一键发送到邮件、微信、文件 App、云盘等 • 深色模式适配 • 全中文界面,针对中文文档优化 【隐私承诺】 Zlen 文档扫描 不收集、不上传、不追踪任何用户数据。所有扫描件与 PDF 仅保存在您自己的设备中,由您完全掌控。App 不含第三方广告 SDK、不含统计追踪 SDK。 【联系我们】 官网:https://z-len.net 意见反馈:card163@hotmail.com 让每一张纸,都能被妥善安放。立即下载 Zlen 文档扫描,开启你的无纸化办公。
Screenshots
Verdict
The clearest difference is update cadence: TANCHJIM at every 4 weeks against Zlen 扫描's every 5 months. TANCHJIM also leads on iOS requirement (15.6 vs 17.0). 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.
TANCHJIM ships an update every 4 weeks, Zlen 扫描 every 5 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | TANCHJIM | Zlen 扫描 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.4 (11 ratings) — better | — |
| Positive reviews | 7.7% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 4 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 123 MB | 45 MB |
| Age rating | 17+ | 9+ |
| Developer | Nanning Heavy Hammer Technology Co., Ltd. | Haifeng Zhao |
In-app purchases
TANCHJIM
No in-app purchases
Zlen 扫描
No in-app purchases









