# SubMaker: AI Captions Offline — SubMaker: Auto Subtitles & SRT

> Offline AI transcription, summarization, and translation for audio and video. (iPhone/iPad app by 瑞华 张.)

- Source: https://appshunter.io/ios/app/submaker-ai-captions-offline/id6772058875 (this page in markdown: same URL + `.md`)
- Developer: [瑞华 张](https://appshunter.io/developer/1608130007)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 9+
- Requires: iOS 16.0 · 624 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-05-26
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/submaker-ai-captions-offline/id6772058875/reviews.md

## What is SubMaker?

Meet your new AI productivity powerhouse.
SubMaker brings advanced AI models directly to your device. Whether you are a professional needing instant meeting summaries, a student recording lectures, or a video editor needing flawless SRT captions, SubMaker does it all — lightning fast and with absolute privacy.
 KEY FEATURES:
• [NEW] AI Smart Summary: Don't have time to read long transcripts? Let our AI extract key decisions, main topics, and action items in seconds. (Free users get 3 complimentary trials!)
• [NEW] Warp Speed Cloud Engine (PRO): Need it yesterday? Choose the Cloud Fast channel to transcribe a 1-hour audio in just 15 seconds with extreme accuracy.
• 100% Offline & Private Mode: Use the Local NPU engine for absolute privacy. No servers, no uploads. Your files never leave your device.
• Built-in Voice Recorder: Turn your iPhone into a professional dictation tool. Record meetings and convert voice-to-text instantly.
• Auto-Translate to English: Select a video in any of the 90+ supported languages, and our AI will transcribe AND translate it to perfect English.
• Dual Export Options: Export standard .srt files for video editing (Premiere, FCP, CapCut), or clean .txt files / Markdown summaries for your notes.
• Smart History Manager: Never lose a file. All your past transcriptions and audio are securely saved locally.
Say goodbye to expensive subscription-based cloud services. Unlock the full potential of your workflow with SubMaker today!
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- AI Smart Summary
- Offline & Private Mode
- Built-in Voice Recorder
- Auto-Translate to English
- Dual Export Options (.srt, .txt)
- Warp Speed Cloud Engine (PRO)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Pass | $4.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $29.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/submaker-ai-captions-offline/id6772058875/reviews.md

### 5/5 — 留学生和考研党的救星🥳

*2026-08-01*

“导师上课口音太重，全靠这个 App 续命！直接导入录音就能出双语字幕，还能一键提炼课堂笔记。试了几个软件，就这个最干净，没有任何恶心的弹窗广告，界面也极其高级。极度推荐！”

## Frequently asked questions about SubMaker

### What is SubMaker?

SubMaker is an AI-powered utility app that provides offline transcription, summarization, and translation for audio and video content. It aims to offer fast and private processing directly on your device.

### Does SubMaker have ads?

No, SubMaker does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features.

### How much does SubMaker cost?

SubMaker is free to download. It offers a 'Monthly Pass' for $4.99/P1M, which likely unlocks premium features or removes limitations. Free users receive 3 complimentary AI Smart Summary trials.

### Is SubMaker safe for younger users?

SubMaker has an age rating of 9+, indicating it is suitable for children aged 9 and above. The app focuses on productivity tools and does not contain inappropriate content for this age group.

### How often is SubMaker updated?

The latest version of SubMaker is 4.5.2, released on July 30, 2026. This indicates a recent update, suggesting the app is actively maintained by its developers.

### What devices support SubMaker?

SubMaker is currently supported on iPhones. It is designed to leverage the device's capabilities for offline processing.

### Can SubMaker translate audio?

Yes, SubMaker can auto-translate audio to English. It supports over 90 languages, transcribing the original audio and then translating it into accurate English text.

### What are the export options for SubMaker?

SubMaker offers dual export options. You can export standard .srt files, which are compatible with video editing software like Premiere, FCP, and CapCut, or clean .txt files and Markdown summaries for note-taking.

## Version history (last 5 releases)

### 4.5.2 — 2026-07-30

SubMaker 4.5.2: AI Services Restored & Engine Upgraded!
Thank you for your valuable feedback! We have rolled out an urgent update to fix the recent AI issues and upgrade our infrastructure:
• AI Features Fully Restored: Fixed an issue where "AI Smart Summary" and "Magic AI Polish" failed to generate over the past couple of days due to server updates. Everything is now back online and running smoothly!
• Next-Gen AI Engine Upgrade: We’ve upgraded our underlying AI model engine. Beyond fixing the outage, AI text polishing and meeting summaries are now significantly faster, more accurate, and more reliable than ever.
• Performance & Stability Tweaks: Resolved minor bugs for a buttery-smooth transcription and editing experience.
We deeply apologize for any inconvenience caused over the last two days. If SubMaker 4.5.1 helps boost your productivity, please consider leaving a 5-star review! It means the world to us.

### 4.5.1 — 2026-07-25

SubMaker 4.5.1: AI Services Restored & Engine Upgraded!
Thank you for your valuable feedback! We have rolled out an urgent update to fix the recent AI issues and upgrade our infrastructure:
• AI Features Fully Restored: Fixed an issue where "AI Smart Summary" and "Magic AI Polish" failed to generate over the past couple of days due to server updates. Everything is now back online and running smoothly!
• Next-Gen AI Engine Upgrade: We’ve upgraded our underlying AI model engine. Beyond fixing the outage, AI text polishing and meeting summaries are now significantly faster, more accurate, and more reliable than ever.
• Performance & Stability Tweaks: Resolved minor bugs for a buttery-smooth transcription and editing experience.
We deeply apologize for any inconvenience caused over the last two days. If SubMaker 4.5.1 helps boost your productivity, please consider leaving a 5-star review! It means the world to us.

### 4.5 — 2026-07-24

Welcome to SubMaker 4.5! The ultimate productivity leap is here.
In this massive update, we bring you game-changing features to supercharge your workflow:
•  AI Smart Summary: Don't have time to read a 1-hour transcript? Our new AI engine extracts key decisions, class notes, and action items in seconds using 4 smart templates. (Free users get 3 complimentary trials!)
•  Magic AI Polish: AI transcriptions aren't always perfect. Use our new "AI Polish" wand in the Plain Text editor to instantly fix typos, grammar, and punctuation with human-level accuracy.
•  Cloud Fast Engine (PRO): Need it yesterday? VIP users can now choose the new Cloud Fast channel to transcribe a 1-hour audio in just 15 seconds!
•  History Sync Fixed: Resolved a bug where recent transcriptions wouldn't immediately show up in the History tab. Everything is now buttery smooth.
If SubMaker 4.5 blows your mind, please consider leaving a 5-star review! It means everything to us.

### 4.0 — 2026-07-10

Welcome to SubMaker 4.0! The ultimate productivity leap is here.
In this massive update, we bring you two game-changing features:
•  AI Smart Summary: Don't have time to read a 1-hour transcript? Our new AI engine extracts key decisions, bullet points, and action items from your recordings in seconds. (Free users get 3 complimentary trials!)
•  Cloud Fast Engine (PRO): Need it yesterday? VIP users can now choose the new Cloud Fast channel. Transcribe a 1-hour meeting in just 15 seconds with extreme accuracy!
•  History Sync Fixed: Resolved a rare bug where recent transcriptions wouldn't immediately show up in the History tab. Everything is now buttery smooth.
If SubMaker 4.0 blows your mind, please consider leaving a 5-star review! It means everything to us.

### 3.03 — 2026-06-21

Version 3.0.3
We are constantly polishing SubMaker to make your offline transcription experience absolutely bulletproof!
In this update:
•  Smarter Media Handling: We’ve improved our error handling for corrupted or highly unusual media formats. Instead of confusing system error codes, the app now provides clear, user-friendly guidance on supported formats.
•  Squashed a few minor bugs and optimized under-the-hood performance for even smoother editing.
If SubMaker is boosting your productivity, taking a moment to leave a 5-star review would mean the world to us!

## Apps similar to SubMaker

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [录音转文字-智能语音转文字离线转换](https://appshunter.io/ios/app/id6747878739) | 5.0 (1) | Free | Utilities |
| [SubEnvoy - AI Subtitle Editor](https://appshunter.io/ios/app/subenvoy-ai-subtitle-editor/id6757021790) | — | Free | Utilities |
| [SRT双语字幕翻译](https://appshunter.io/ios/app/srt/id6755079847) | 5.0 (1) | Free | Utilities |
| [Quick Caption: AutoSub AI](https://appshunter.io/ios/app/quick-caption-autosub-ai/id6757344478) | — | Free | Utilities |
| [SubAI - Video Subtitle Helper](https://appshunter.io/ios/app/subai-video-subtitle-helper/id6771306934) | — | Free | Utilities |
| [Caption AI: Video Subtitles](https://appshunter.io/ios/app/caption-ai-video-subtitles/id6760328167) | — | Free | Utilities |

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All apps by 瑞华 张: https://appshunter.io/developer/1608130007

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*