# Subly: Auto Captions & Subs — AI Subtitles for Any Video

> Private, on-device AI video captioning and editing tool with a one-time purchase. (iPhone/iPad app by Nikolai Tsyrenov.)

- Source: https://appshunter.io/ios/app/subly-auto-captions-and-subs/id6778295353 (this page in markdown: same URL + `.md`)
- Developer: [Nikolai Tsyrenov](https://appshunter.io/developer/1896638186)
- Category: Photo & Video
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 95 MB
- Languages: American English, French (France), German (Germany), Italian, Russian
- Released: 2026-06-12
- Data updated: 2026-08-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/subly-auto-captions-and-subs/id6778295353/reviews.md

## What is Subly?

Caption, edit, and narrate short videos — all on your iPhone, all private. Try it free, then pay once and keep it forever.

No subscription. No credits that "run out." No account. Your video never leaves your device, so it even works in airplane mode.

• WORD-BY-WORD CAPTIONS — animated, karaoke-style highlight with a live preview.
• PAY ONCE — one purchase removes the watermark and unlocks unlimited, full-quality export. No monthly fees, no token meter.
• ON-DEVICE & PRIVATE — no servers, no uploads, no account. Cloud editors send your footage away and take broad rights to it; Subly never does.
• FULL EDITOR — combine clips, split, trim, and reorder on a scrub timeline with frame-accurate preview.
• TRANSITIONS — dissolve, fade to black, slide, and zoom between clips.
• B-ROLL & MUSIC — drop video overlays and a music bed with auto-ducking and per-clip volume.
• AI NARRATOR — type a script, pick a voice, get a natural voiceover generated entirely on your iPhone. Offline, unlimited, no per-character fees.
• CAPTIONS FROM YOUR SCRIPT — one script becomes both the narrator audio and word-synced captions.
• ENGLISH-FIRST, 90+ LANGUAGES — on-device Whisper transcription.
• PRO FORMATS — export SRT and VTT subtitle files.
• VERTICAL REFRAME — turn landscape clips into 9:16.

Built for Reels, Shorts, and TikTok creators who are done renting their tools.

## Key features

- Word-by-word animated captions
- On-device AI narration
- Full video editing suite
- Offline functionality
- One-time purchase
- SRT/VTT export
- Vertical reframing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Subly Pro | $4.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/subly-auto-captions-and-subs/id6778295353/reviews.md

### 5/5 — Amazing!

*2026-06-18*

As a content creator, Subly has been an absolute game-changer! Adding captions to my Reels and TikToks used to take forever, but this app does it automatically in seconds. The transcription accuracy is incredibly high, and I love the different text styles and animations you can choose from. It saves me so much time. Highly recommend for anyone looking to level up their video content!

## Frequently asked questions about Subly

### Does Subly have ads?

No, Subly does not contain advertisements. The app is free to download and use, with a one-time purchase to unlock full features and remove watermarks.

### How much does Subly cost?

Subly is free to download. A one-time purchase is available to remove watermarks and unlock unlimited, full-quality export. There are no monthly fees or subscription costs.

### What devices does Subly support?

Subly is currently supported on iPhone devices. It is designed to work offline, even in airplane mode.

### How often is Subly updated?

The latest version of Subly is 2.1.3, and it was last updated on June 27, 2026. Updates are released by the developer, Nikolai Tsyrenov.

### What are the privacy features of Subly?

Subly processes all video and audio on your device, meaning your footage never leaves your iPhone. It does not require an account or use cloud servers, ensuring maximum privacy.

### Can I use Subly offline?

Yes, Subly is built for on-device processing, allowing you to caption, edit, and narrate videos even when you don't have an internet connection, including in airplane mode.

### What languages does Subly support for transcription?

Subly uses on-device Whisper transcription, which is English-first but supports over 90 languages for generating captions and AI narration.

### What export formats does Subly offer?

Subly allows you to export your videos with professional subtitle files, including SRT and VTT formats, in addition to the video itself.

## Version history (last 5 releases)

### 2.1.8 — 2026-08-05

Full Russian localization, including system permission prompts. Fixes and improvements.

### 2.1.7 — 2026-08-02

Maintenance update. No changes to features — thanks for using Subly!

### 2.1.6 — 2026-07-15

Big reliability and speed round:
• Your project now reopens right where you left it — even after restarting the app.
• Caption, wording and style changes always make it into the export.
• Exporting with captions is noticeably faster, and the app stays cooler while it works.
• Fixed exports failing with "Operation Stopped" on HDR videos.
• Trimming a clip re-cuts everything correctly, and a finished export is never lost to a failed re-export.
• The editor is safer to scrub: music and B-roll move only when selected, and tiny accidental trims no longer happen.
• Clearer warnings: narration that won't fit, large downloads, and replacing a clip now ask first.
• Progress screens, tips and time estimates now speak your language.

As always, everything runs on your device — your video is never uploaded.

### 2.1.5 — 2026-07-09

Editor reliability round:
• The narrator now follows your edits — trim or cut the video and the voice plays exactly the parts you kept, in sync with its captions.
• Moving the narrator no longer nudges the video's own subtitles, and its position is never lost — even after restarting the app.
• Fixed an export that could get stuck on the progress screen after switching apps mid-export.
• SRT/VTT subtitle files now match your edited timeline exactly.
• Error messages and notifications now speak your language — Russian, German, French and Italian.
• More reliable imports and trims, and your projects are protected across app updates.

As always, everything runs on your device — your video is never uploaded.

### 2.1.4 — 2026-07-02

Subly now speaks Russian — the entire app is localized, joining German, French and Italian (with improved translations throughout).

Editor reliability:
• Transitions, B-roll, music and the narrator now stay perfectly in sync from preview to export.
• The narrator keeps its position after you move it and regenerate; captions stay glued to the voice.
• B-roll longer than your video no longer breaks the export.
• The preview matches the export even more closely — including the watermark on free exports.
• Deleting a clip now asks for confirmation.
Plus clearer error messages, restore-purchase feedback and many smaller fixes.

As always, everything runs on your device — your video is never uploaded.

## More apps by Nikolai Tsyrenov

- [Magic Merge: Cozy Garden](https://appshunter.io/ios/app/magic-merge-cozy-garden/id6772005772)
- [Zurkhai: Lunar Astrology](https://appshunter.io/ios/app/zurkhai-lunar-astrology/id6772695315)
- [Penna: ADHD Visual Day Planner](https://appshunter.io/ios/app/penna-adhd-visual-day-planner/id6777857054)
- [Revive: Restore Old Photos AI](https://appshunter.io/ios/app/revive-restore-old-photos-ai/id6779492875)
- [Servlog: Car Maintenance Log](https://appshunter.io/ios/app/servlog-car-maintenance-log/id6780549101)

All apps by Nikolai Tsyrenov: https://appshunter.io/developer/1896638186

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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 2026-08-07.*