# AddSubtitle.ai vs Checksub

AddSubtitle.ai records 20,205 monthly visits with -37.8% month-over-month growth and Freemium pricing. Checksub records 103,481 monthly visits with -25.6% growth and Free Trial, Paid pricing.

| Metric | [AddSubtitle.ai](https://openaitools.app/tool/addsubtitle) | [Checksub](https://openaitools.app/tool/checksub-com) |
| :--- | :--- | :--- |
| Website URL | https://addsubtitle.ai | https://checksub.com |
| Categories | AI Video Editor, AI Subtitle Generator, AI Vocal Remover, AI Dubbing | AI Subtitle Generator, AI Dubbing, AI Video Translator, AI Voice Cloning |
| Pricing Model | Freemium | Free Trial, Paid |
| Monthly Visits | 20,205 | 103,481 |
| MoM Growth Rate | -37.8% | -25.6% |
| Primary Market | United States | Singapore |
| Direct Visits | 12,272 | 54,372 |
| Review Score | 4.2 | 4.2 |
| Saved Count | 0 | 2 |
| Supported Platforms | Website | Website |

## AddSubtitle.ai

AddSubtitle.ai targets the moment in a video workflow when language becomes the bottleneck: a course that needs English, Spanish and Japanese versions, a vlog being republished for a different market, or a meeting recording that has to be readable. Instead of stitching together a transcription service, a translation tool and a desktop video editor, the platform keeps captions, translations and voice work inside one browser tab.

The core loop is straightforward. You upload a video, the system transcribes it, you pick your target languages, and it returns multilingual or bilingual subtitles that you can restyle with custom fonts and colour treatments. Reviewed text can then be pushed further: the same script can drive an AI voice track in another language, or be used by the Video Rewrite feature to change what a speaker says while matching lip movement and vocal delivery.

Because everything lives online, the tool suits people who publish frequently and want to avoid round-tripping files through desktop software. The platform advertises 100+ supported languages and a free tier to start, with 10,000+ creators and businesses cited as users. Exact credit limits, export resolution caps and commercial licensing terms change over time and should be confirmed on the pricing page before committing to a paid plan.

**Pricing & Plans:** Freemium with a free entry tier for trying subtitle generation, plus paid plans that unlock higher usage, dubbing minutes and premium features. Check the pricing page for current credit allowances and language coverage.

- **Multilingual subtitle generation:** Automatically transcribe uploaded video and produce captions in more than 100 languages, including bilingual subtitle sets for language-learning and international publishing.
- **In-browser subtitle editor:** Proofread and correct auto-generated captions directly in the web editor, fixing timing, wording and speaker labels before export.
- **Subtitle styling:** Customise fonts, colours, sizes and positioning so captions match a channel's visual identity across vlogs, shorts and long-form uploads.
- **AI video translation and dubbing:** Translate the spoken content and generate a voice track in the target language, so the same video can be published to non-native audiences without re-recording.
- **Video Rewrite with lip sync:** Edit the transcript and let the tool regenerate the spoken audio with matching lip movement, useful for corrections and scripted changes.

**Strengths:** Combines transcription, translation, styling and dubbing in a single browser workflow; Bilingual subtitle output is useful for language learners and dual-audience channels; No desktop software required, so edits can happen from any machine; Free tier makes it easy to test caption quality before paying

**Limitations:** Very long or high-resolution videos may hit export or duration limits on lower tiers; AI-generated voice tracks still need a human check for tone and pronunciation of names; Feature availability and credit pricing change, so costs need re-checking periodically

[Profile (Markdown)](https://openaitools.app/tool/addsubtitle.md)

## Checksub

Checksub is a video localization platform built around subtitles. You upload a video, and the service automatically transcribes the speech, generates synchronized captions in the original language, and lets you restyle or animate them with dozens of presets — including one-click karaoke effects. From that base transcription it can then translate the whole script into more than 200 languages, keeping the timing and line breaks appropriate for on-screen reading rather than a raw machine translation.

Beyond subtitles, Checksub handles AI dubbing: it isolates the original voices from music and background noise, then regenerates the dialogue with realistic AI voices while preserving the rest of the audio atmosphere. Voice cloning lets you substitute a cloned version of your own voice in some 30 languages, and a script-to-subtitle mode converts an existing written script into perfectly synchronized captions without transcription errors.

Everything is editable in an online editor, so once the AI has produced subtitles or a dub you can rewrite, re-time, regenerate individual sentences, and export either burned-in video or subtitle files. The platform is aimed at training departments, social media teams, YouTubers and agencies that need to publish the same content in many languages without re-shooting.

**Pricing & Plans:** Checksub offers a free trial that includes credits covering roughly one hour of video and access to every feature. Ongoing use is on paid subscription plans; exact tiers and per-minute limits are shown on the Checksub pricing page, and larger teams can book a demo for custom quotes.

- **Automatic subtitling and animation:** Generates accurate captions with AI, then lets you apply dozens of style presets and animations, including one-click karaoke effects, before exporting burned-in video or subtitle files.
- **Translation into 200+ languages:** Machine translation built specifically for subtitles, so line lengths and timing stay readable instead of copying a generic document translator.
- **AI dubbing with voice isolation:** Separates music and background noise from the original voices, then replaces only the speech with realistic AI dubbing so the audio atmosphere is preserved.
- **Voice cloning in 30 languages:** Clone a speaker's voice from a sample and use it to replace the original voice-over across dozens of languages with a natural delivery.
- **Advanced online editor:** Edit, re-time and regenerate any subtitle line or dubbed sentence directly in the browser, with script-to-subtitle alignment for pre-written content.

**Strengths:** Subtitle, translation, dubbing and voice cloning live in one workspace; Purpose-built subtitle translation keeps line lengths readable; Voice isolation preserves music and ambient audio in dubs; Free trial credits cover about an hour of video, enough to test real workflows

**Limitations:** Credits are consumed per language created, which adds up for multi-market projects; The free trial is short-lived and paid plans are subscription-based; The editor has many options, so new users need some time to learn the interface

[Profile (Markdown)](https://openaitools.app/tool/checksub-com.md)

## Frequently Asked Questions

### How do AddSubtitle.ai and Checksub compare in monthly traffic?

AddSubtitle.ai has 20,205 monthly visits, while Checksub has 103,481. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

AddSubtitle.ai has a month-over-month growth rate of -37.8%; Checksub has -25.6%.

### How does pricing compare?

AddSubtitle.ai: Freemium. Freemium with a free entry tier for trying subtitle generation, plus paid plans that unlock higher usage, dubbing minutes and premium features. Check the pricing page for current credit allowances and language coverage. Checksub: Free Trial, Paid. Checksub offers a free trial that includes credits covering roughly one hour of video and access to every feature. Ongoing use is on paid subscription plans; exact tiers and per-minute limits are shown on the Checksub pricing page, and larger teams can book a demo for custom quotes.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Clideo](https://openaitools.app/tool/clideo) | 11,605,001 | +4.6% | Freemium | Browser-based video, audio and GIF editing without installs | [.md](https://openaitools.app/tool/clideo.md) |
| 2 | [VEED.IO](https://openaitools.app/tool/veed-io) | 8,011,728 | +1.8% | Freemium, Free Trial, Paid, Contact for Pricing | Generate, edit, subtitle and dub on-brand videos in one browser workflow | [.md](https://openaitools.app/tool/veed-io.md) |
| 3 | [Kapwing](https://openaitools.app/tool/kapwing-com) | 4,265,531 | -3.8% | Freemium, Contact for Pricing | AI-powered browser video editing and content creation for teams | [.md](https://openaitools.app/tool/kapwing-com.md) |
| 4 | [SubEasy](https://openaitools.app/tool/subeasy) | 476,185 | -35.4% | Freemium, Paid | AI transcription, subtitles and video translation in one browser studio | [.md](https://openaitools.app/tool/subeasy.md) |
| 5 | [Vozo AI](https://openaitools.app/tool/vozo-ai) | 405,317 | -10.3% | Freemium, Contact for Pricing | Translate, dub, and lip-sync videos into 160+ languages | [.md](https://openaitools.app/tool/vozo-ai.md) |
| 6 | [AI Dubbing](https://openaitools.app/tool/ai-dubbing) | 307,070 | -16.8% | Freemium | Free AI video dubbing and lip-sync in 170+ languages | [.md](https://openaitools.app/tool/ai-dubbing.md) |
| 7 | [Dubverse](https://openaitools.app/tool/dubverse) | 147,182 | -9.9% | Free Trial, Contact for Pricing | AI video dubbing, subtitles and text-to-speech in 10+ languages | [.md](https://openaitools.app/tool/dubverse.md) |
| 8 | [Perso AI](https://openaitools.app/tool/perso-ai) | 137,383 | -12.8% | Freemium, Free Trial, Paid, Contact for Pricing, Free | AI dubbing, avatars and live translation in one multilingual platform | [.md](https://openaitools.app/tool/perso-ai.md) |
| 9 | [Rask AI](https://openaitools.app/tool/rask-ai) | 106,276 | +14.6% | Paid, Contact for Pricing | AI video dubbing and localization in 135+ languages with your own voice | [.md](https://openaitools.app/tool/rask-ai.md) |
| 10 | [BlipCut AI Video Translator](https://openaitools.app/tool/blipcut-ai-video-translator) | 74,175 | -9.6% | Paid | Translate and dub videos into 140+ languages with voice cloning and lip sync | [.md](https://openaitools.app/tool/blipcut-ai-video-translator.md) |

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Source: https://openaitools.app/compare/addsubtitle-vs-checksub-com

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