### [Previewed](https://hello123.com/)

**Published:** 2026-09-23T01:00:00

**Author:** hello123

**Excerpt:** Previewed 是免费在线样机生成器，能产出 App Store 截图、3D 渲染和宣传视频。免费 720…

大多数样机生成器通过水印限制免费用户，Previewed 则采用了不同策略：免费版无水印，但要求遵循 CC 署名协议，相当于每张截图都会展示其来源。[Previewed 官网](https://previewed.app/)显示，免费额度为**无限次 720p 2D 导出**，对单 App 开发者而言已经够用。

| 项目  | 详情  |
| :--- | :--- |
| 类型  | 在线样机生成器 |
| 核心能力 | 2D 截图 / 3D 快照 / 3D 动画 |
| 免费额度 | 无限 720p 2D（CC 署名） |
| 起步付费 | 9.99 美元一次性（Plus） |
| Pro 订阅 | 19 美元/月，年付 228 美元 |
| 导出格式 | JPEG / PNG / MP4 |
| 设备库 | iPhone、Android、平板、笔记本 |

## 功能拆解：样机生成器的三层能做什么

据 [Previewed 官网](https://previewed.app/)介绍，该工具的功能分为三层。2D 截图用于 App Store 或 Google Play 列表展示，3D 快照适合制作宣传横幅，3D 动画则面向社交媒体传播。可定制的元素覆盖文本、图像、设备型号、尺寸、颜色（含透明度）和定位共六类，基本涵盖移动端宣传所需的全部视觉资产。官网数据显示，模板库已超过 200 个，覆盖从 iPhone 15 到老款 Android 的主流机型。

## 上手流程：从应用截图到 3D 动画

实际操作时，在浏览器中打开编辑器，从数百个模板里挑选一个，然后拖拽修改文本、替换截图、调整设备角度，全程无需安装本地软件。如果只是制作五张商店截图，免费工具就能满足需求。Previewed 的核心优势在于 3D 动画功能，可以为 Product Hunt 发布、推特宣传或投资人路演，产出 30fps 或 60fps 的短视频。

## 技术参数与导出格式

| 技术参数 | 详情  |
| :--- | :--- |
| 导出格式 | JPEG / PNG / MP4 |
| 运行环境 | 桌面浏览器（无离线模式） |
| API | 官网未公开 |
| 团队协作 | 仅 Pro 套餐 |

官网明确支持的导出格式只有 JPEG、PNG 和 MP4 三种。3D 渲染过程依赖显卡性能，老旧笔记本在操作时可能出现画面延迟。

## 价格阶梯：从 0 到 19 美元/月

根据官网定价页，Lite 版永久免费，但所有作品默认遵循 CC BY 署名协议，商用必须自行附上 Previewed 链接。Plus 版为 9.99 美元一次性付费，解锁 10 次 1080p+ 导出、3D 功能、30fps 视频和商用许可。Pro 版按年付费折合 19 美元/月（一次性支付 228 美元，若按月付则约 29 美元），导出次数提升至无限，视频帧率升至 60fps。

## 客观来说：三件事得知道

第一，免费版的 CC 署名义务无法跳过，App Store 商店截图同样需要标注。第二，Plus 版的 1080p+ 导出仅有 10 次额度，重度用户会被迫升级到 Pro。第三，官网没有公开 API，也不支持团队 SSO 登录，企业部署会受限制。更实际的问题是，当 3D 渲染引擎升级时，旧模板是否会失效？官方定价页目前尚未给出兼容性承诺。

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