# DeepL vs Second Opinion

DeepL records 95,110,871 monthly visits with -1.7% month-over-month growth and Freemium pricing. Second Opinion records 0 monthly visits with 0% growth and Freemium pricing.

| Metric | [DeepL](https://openaitools.app/tool/deepl) | [Second Opinion](https://openaitools.app/tool/second-opinion) |
| :--- | :--- | :--- |
| Website URL | https://www.deepl.com | https://secondopinion.so |
| Categories | AI Translate, AI Writing Assistants, AI API, AI Voice Translator | AI Checker, AI API, AI Copilot, Large Language Models (LLMs) |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 95,110,871 | 0 |
| MoM Growth Rate | -1.7% | 0% |
| Primary Market | Germany | Global |
| Direct Visits | 60,380,947 | 0 |
| Review Score | 4.7 | 3.9 |
| Saved Count | 135 | 0 |
| Supported Platforms | Website | Website |

## DeepL

DeepL is a specialist Language AI company widely recognized by professional translators, localization managers, and multinational enterprises for delivering more natural, idiomatic translations than general-purpose search translators or raw foundational LLMs. Headquartered in Cologne, Germany, DeepL trains proprietary neural networks and specialized language models tuned specifically for cross-lingual nuance, register, and domain accuracy across more than 30 languages. Over 200,000 businesses globally rely on DeepL to handle sensitive legal, technical, financial, and marketing communications.

The platform spans three integrated product pillars: DeepL Translator, DeepL Write, and DeepL Voice. DeepL Translator handles instant text translation and full-document conversion—preserving exact typography, embedded images, and page layouts across PDF, Microsoft Word (.docx), PowerPoint (.pptx), and Excel (.xlsx) files up to 100 MB. Through its Customization Hub, teams enforce corporate terminology using Shared Glossaries, Translation Memory, and Shared Style Rule Lists, while interactive Clarify prompts resolve source-text ambiguities. DeepL Write Pro acts as an AI writing co-pilot that refines tone, fluency, and audience adaptation in real time, and DeepL Voice delivers live multilingual captions and speech-to-speech translation for virtual meetings and face-to-face conversations.

DeepL offers a Free web and app tier capped at 50,000 characters and one 5 MB file per month, where submitted text may be used to train public models. For strict confidentiality—including immediate text deletion after translation, zero data training, ISO 27001 certification, and SOC 2 Type II compliance—users upgrade to DeepL Pro. In its current tier structure (which replaced legacy Starter, Advanced, and Ultimate naming), Individual costs $8.74/month (€7.49/month billed annually) for 300,000 characters and 3 files/month; Team costs $28.74/user/month (€24.99/month) for 1M characters, 20 files, and shared style rules; and Business costs $57.49/user/month (€49.99/month) for unlimited text translation, 100 files/month, Translation Memory, and bundled DeepL Write Pro.

**Pricing & Plans:** Offers a Free tier (50,000 characters/month and 1 file up to 5 MB); paid DeepL Pro plans billed annually are Individual at $8.74/month (€7.49/month), Team at $28.74/user/month (€24.99/user/month), and Business at $57.49/user/month (€49.99/user/month, which bundles DeepL Write Pro), plus custom Enterprise and metered API plans. All paid Translator plans include 30 minutes/user/month of DeepL Voice.

- **Layout-Preserving Document Translation:** Translates whole PDF, Word (.docx), PowerPoint (.pptx), Excel (.xlsx), and HTML files up to 30 MB (Individual/Team) or 100 MB (Business/Enterprise) while keeping original fonts, tables, slides, and visual formatting intact.
- **Customization Hub: Glossaries, Style Rules & Translation Memory:** Ensures consistent brand and technical terminology across language pairs using CSV-importable shared glossaries, automated glossary generation, shared style rule lists, and translation memory.
- **DeepL Write Pro AI Writing Assistant:** Enhances original drafts and translated copy with real-time sentence rewrites, word alternatives, and one-click tone adjustments (e.g., Business, Academic, Casual, Diplomatic) via browser, desktop, and Microsoft 365/Google Workspace add-ins.
- **DeepL Voice for Meetings & Conversations:** Provides real-time spoken language translation and live multilingual captions for video conferences and mobile in-person dialogues, with 30 minutes per user per month included in paid DeepL Pro plans.
- **Zero-Retention Enterprise Security & BYOK:** Guarantees that Pro subscriber texts are never stored or used for AI model training, backed by ISO 27001-certified European data centers, SOC 2 Type II compliance, SAML SSO, SCIM provisioning, and Enterprise Bring Your Own Key (BYOK) encryption.

**Strengths:** Consistently outperforms generic machine translators in idiomatic fluency, register control (formal vs. informal), and specialized European and Asian language pairs.; Best-in-class document translation preserves intricate PowerPoint, Word, and PDF formatting without manual desktop publishing rework.; Uncompromising enterprise privacy posture with immediate deletion of Pro translations, no model training on customer data, and optional BYOK encryption.; Unified ecosystem combining text translation, DeepL Write Pro stylistic editing, and 30 monthly minutes of DeepL Voice in standard Pro seats.

**Limitations:** TheIndividual plan ($8.74/mo / €7.49/mo) is capped at 300,000 characters and just 3 file translations per month, requiring a jump to Team ($28.74/mo) or Business ($57.49/mo) for heavy workloads.; Supports roughly 30+ core languages, which is significantly narrower than Google Translate's 130+ language catalog for rare regional dialects.; DeepL Write Pro requires an extra €6.99/user/month add-on for Individual and Team subscribers unless upgrading to the Business tier.

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

## Second Opinion

Second Opinion turns fact-checking into a right-click action. Instead of opening a new tab, pasting a claim into a chatbot, and rewording your question, you highlight text on a news article, social post, or research page and select "Get Second Opinion" from the context menu. The extension then returns a structured analysis in place, which keeps you inside the reading flow rather than breaking it.

The analysis is deliberately multi-angle. It checks accuracy of the specific claims, flags possible bias or loaded framing, and offers alternative perspectives so you can see how the same facts might be presented differently. The extension itself is free to install and use, and connects to Grok through your own API key, meaning you pay only for the token usage you actually generate rather than a subscription fee.

Because the output is generated by a language model, the developer is explicit that results should be cross-referenced with other reliable sources for high-stakes decisions. It is best understood as a fast first-pass sanity check that surfaces questions worth asking, not a final authority on what is true.

**Pricing & Plans:** The extension is free to install and use. You supply your own Grok API key, so you pay only for token usage per check. No subscription fees or hidden costs for the extension itself.

- **Right-click fact-checking:** Highlight any passage on a website, social platform, or news article and choose Get Second Opinion to receive an analysis without leaving the page.
- **Accuracy verification:** The model assesses the specific claims in the highlighted text and flags statements that appear unsupported or misleading.
- **Bias and framing detection:** Beyond true or false, it points out loaded wording, one-sided framing, and rhetorical choices that shape interpretation.
- **Alternative perspectives:** Each check surfaces opposing viewpoints and context, so you can compare how the same facts are presented elsewhere.
- **Payload-based pricing via your own key:** The extension is free; you connect your own Grok API key and pay only for the tokens each check consumes.

**Strengths:** Works inline through a right-click, so verification does not break your reading flow; Goes beyond true or false to flag bias, framing, and missing perspectives; Free extension with pay-only-for-usage token costs through your own API key; Available on Brave, Edge, and other Chromium browsers as well as Chrome

**Limitations:** Requires your own Grok API key, which adds a setup step for non-technical users; Costs scale with how much you check, since billing is per token; Output is model-generated and can itself be wrong, so important claims still need primary-source review; Not yet available on Firefox or Safari

[Profile (Markdown)](https://openaitools.app/tool/second-opinion.md)

## Frequently Asked Questions

### How do DeepL and Second Opinion compare in monthly traffic?

DeepL has 95,110,871 monthly visits, while Second Opinion has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

DeepL has a month-over-month growth rate of -1.7%; Second Opinion has 0%.

### How does pricing compare?

DeepL: Freemium. Offers a Free tier (50,000 characters/month and 1 file up to 5 MB); paid DeepL Pro plans billed annually are Individual at $8.74/month (€7.49/month), Team at $28.74/user/month (€24.99/user/month), and Business at $57.49/user/month (€49.99/user/month, which bundles DeepL Write Pro), plus custom Enterprise and metered API plans. All paid Translator plans include 30 minutes/user/month of DeepL Voice. Second Opinion: Freemium. The extension is free to install and use. You supply your own Grok API key, so you pay only for token usage per check. No subscription fees or hidden costs for the extension itself.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | [.md](https://openaitools.app/tool/deepseek.md) |
| 4 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 5 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 6 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | AI detection and writing verification built for schools and editors | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 7 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) |
| 8 | [Grokipedia](https://openaitools.app/tool/grokipedia) | 1,728,388 | +6.9% | Free | An open, AI-written encyclopedia built and fact-checked by Grok | [.md](https://openaitools.app/tool/grokipedia.md) |
| 9 | [OpenL Translate](https://openaitools.app/tool/openl) | 1,470,643 | +8.8% | Freemium, Subscription | AI translation for text, images, documents and speech in 100+ languages | [.md](https://openaitools.app/tool/openl.md) |
| 10 | [Lara Translate](https://openaitools.app/tool/lara-translate) | 982,359 | -16.1% | Freemium, Paid, Contact for Pricing | Professional AI translation for text, documents, images and audio | [.md](https://openaitools.app/tool/lara-translate.md) |

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Source: https://openaitools.app/compare/deepl-vs-second-opinion

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