Comparison

RoboTou Stacker vs Ezen Cut

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RoboTou Stacker

Combine multiple photos directly on your device for enhanced results. This app offers automatic masking and alignment for various photography needs, including starry skies and light trails. Process your images locally without needing an account or cloud sync.

Highlights
  • On-device image stacking
  • Automatic masking and alignment
  • Starry sky stacking
  • Star trail stacking
  • Car-light trail stacking
  • Local preview generation
  • Export to Photos
Features
Read full description

Bring image stacking and AI star removal to your iPhone and iPad. RoboTou Stacker gives night-sky and landscape photographers practical tools for processing photos directly on their devices. Import images from Photos, Files, or a folder, choose a processing mode, preview the result, and save it back to Photos. Image processing runs locally, with no account registration or photo uploads required. CHOOSE YOUR WORKFLOW • Starry Sky Stack: Automatically generate a sky mask, align the stars, and process the sky and foreground separately. • Landscape Stack: Combine multiple photos of a static scene captured from a fixed position. • Star & Light Trails Stack: Use maximum-value stacking to combine star trails and vehicle light trails. • Star Trail Pro: Stack up to 100 images with a fade-enhanced workflow. • AI Star Removal: Process a single image on your device to create a starless image for further sky-background editing. OUTPUT YOUR WAY Choose a 4K or 1080p output preset while preserving the original aspect ratio. Smaller source images retain their original resolution. Both stacking and AI Star Removal follow your in-app resolution setting. MADE FOR YOUR DEVICE Switch between English and Chinese. Layouts optimized for the unfolded iPhone Duo display make better use of screen space across Home, mode selection, importing, and Settings. FREE FEATURES AND ROBOTOU PRO Landscape Stack and basic Star & Light Trails Stack are free. Starry Sky Stack, Star Trail Pro, and AI Star Removal require RoboTou Pro, available as an auto-renewing annual subscription or a one-time lifetime purchase. Manage or cancel subscriptions in your Apple ID settings. Privacy Policy: https://www.robotou.cn/robotou-stacker-ios-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Ezen Cut

This AI-powered tool automatically generates and edits multilingual video subtitles. It offers precise timing adjustments, custom styling, and unique traditional Mongolian vertical text rendering. Translate, export subtitles in various formats, or extract audio.

Highlights
  • AI-driven multilingual subtitle generation
  • Professional subtitle timing and text editor
  • Traditional Mongolian vertical text rendering
  • One-click subtitle translation
  • Local video export with multiple resolutions
  • SRT, VTT, ASS subtitle file export
  • MP3/WAV audio export
Read full description

Ezen Cut 是一款专业的 AI 驱动多语言视频字幕生成与编辑工具。 核心功能: - AI智能语音识别:上传视频,自动生成精准字幕,支持中文、蒙古文、英文、俄文、哈萨克文、藏文等多种语言 - 专业字幕编辑器:精准调整字幕时间轴、文本内容、字体样式,所见即所得 - 传统蒙古文竖排排版:业界独有的传统蒙古文竖排字幕渲染,完美支持GLT系列字体 - 多语言翻译:一键将字幕翻译为目标语言,支持多轨道字幕同时显示 - 本地视频导出:在设备端完成字幕烧录和视频导出,支持720p/1080p/4K多种分辨率 - 多格式导出:支持SRT、VTT、ASS字幕文件导出,以及MP3/WAV音频导出 产品特色: - 简洁直观的界面设计,新手也能快速上手 - 云端与本地结合,视频数据安全可控 - 多设备同步,随时随地编辑你的字幕 - 灵活的订阅方案,满足个人和团队需求 适用场景: - 视频创作者:快速为短视频、Vlog添加多语言字幕 - 教育工作者:为教学视频生成讲义字幕 - 翻译工作者:高效完成视频字幕翻译 - 蒙古语内容创作:专业的传统蒙古文竖排字幕解决方案 隐私与安全: 我们重视用户隐私。视频数据仅用于字幕生成,处理完成后可随时删除。详情请查看隐私政策。

Screenshots

RoboTou Stacker4 screens
Ezen Cut4 screens

Verdict

The call

The clearest difference is iOS requirement: Ezen Cut at 15.0 against RoboTou Stacker's 17.0. On price, review sentiment, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RoboTou Stacker sells 2 in-app purchases, starting at $7.99 per year and Ezen Cut sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RoboTou Stacker ships an update every 5 days, Ezen Cut every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
RoboTou Stacker versus Ezen Cut: the parameters behind the verdict, then further details
ParameterRoboTou StackerEzen Cut
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 5 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size88 MB176 MB
Age rating4+12+
Developer振国 吴内蒙古毅金云科技有限公司

Customer experience

RoboTou Stacker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ezen Cut

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

RoboTou Stacker

Subscriptions1
  • RoboTou Stacker Pro Annual$7.991 Year
One-time1
  • RoboTou Stacker Pro Lifetime$39.99
9 purchases

Ezen Cut

One-time9
  • Basic 周套餐$0.99
  • Standard 周套餐$2.99
  • Basic 月套餐$3.99
Show 6 more
  • Standard 月套餐$7.99
  • Pro 周套餐$9.99
  • Pro 月套餐$29.99
  • Basic 年套餐$39.99
  • Standard 年套餐$89.99
  • Pro 年套餐$299.99

Questions

Is RoboTou Stacker free?
RoboTou Stacker is free to download, with in-app purchases available.
Is Ezen Cut free?
Ezen Cut is free to download, with in-app purchases available.
Do RoboTou Stacker or Ezen Cut have ads?
Neither RoboTou Stacker nor Ezen Cut shows ads.
Which is updated more often, RoboTou Stacker or Ezen Cut?
RoboTou Stacker ships an update every 5 days, and Ezen Cut every 4 days. Most recently, RoboTou Stacker was updated on October 25, 2026 and Ezen Cut on October 31, 2026.

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