# Sider vs Xpolyglot Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Xpolyglot records 0 monthly visits with 0% growth and Paid pricing. | Metric | [Sider](https://openaitools.app/tool/sider) | [Xpolyglot](https://openaitools.app/tool/xpolyglot) | | :--- | :--- | :--- | | Website URL | https://sider.ai | https://xpolyglot.app | | Categories | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader | AI Translate, AI Developer Tools, AI Text Generator, AI Marketing | | Pricing Model | Freemium | Paid | | Monthly Visits | 2,644,740 | 0 | | MoM Growth Rate | -10.6% | 0% | | Primary Market | United States | Global | | Direct Visits | 1,699,535 | 0 | | Review Score | 4.5 | 4.2 | | Saved Count | 31 | 0 | | Supported Platforms | Website | Website | ## Sider Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight. Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel. Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base. **Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans. - **AI sidebar on any page:** A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab. - **Summarise and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material. - **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move. - **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions. - **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits. **Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks **Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans [Profile (Markdown)](https://openaitools.app/tool/sider.md) ## Xpolyglot Xpolyglot is a desktop utility built specifically for the Xcode localization workflow. Instead of exporting spreadsheets or pasting strings into a web translator, developers import their Xcode project directly into the app, where all localization projects are tracked in one dashboard. Xpolyglot then uses AI (powered by the user's own OpenAI API key) to translate the .xcstrings string catalog into every target language. The app's standout efficiency feature is delta updates: rather than re-translating the whole catalog, Xpolyglot detects which strings have changed since the last run and translates only those. That keeps both time and OpenAI API costs low, which the app illustrates with an in-app savings calculator that compares its cost against traditional per-word human translation. Xpolyglot goes beyond code strings to the App Store. It manages App Store Connect descriptions and keywords across all supported languages, checking them for length and relevance so the app remains discoverable in each market. It also handles versioning, translating the 'What's new' release notes so users are kept informed in their native language. Xpolyglot is notarized by Apple and made by FiveSheep, a small software company based in Estonia. **Pricing & Plans:** One-time purchase of USD 9.99 for macOS, including lifetime free updates. A separate OpenAI API key is required and its usage is billed by OpenAI; a medium project of 300 keys into 5 languages is estimated at roughly USD 1.11 in API cost. - **One-click Xcode import:** Import Xcode projects in a few clicks and keep every localization project organised in one place. - **AI string catalog localization:** Translate the .xcstrings string catalog using your own OpenAI API key for a fraction of professional translation cost. - **Delta updates:** Detect changed strings and translate only what needs updating, saving both time and API spend. - **App Store metadata sync:** Keep App Store Connect descriptions and keywords length-checked and relevant in every target language. - **Version and release notes:** Create new versions and translate the 'What's new' section so users stay informed in their own language. **Strengths:** Very low one-time price of USD 9.99 with lifetime updates; Purpose-built for Xcode and .xcstrings catalogs, not a generic translator; Delta updates only re-translate changed strings, cutting API cost; Also manages App Store Connect descriptions, keywords and release notes **Limitations:** Requires you to supply and pay for your own OpenAI API key separately; macOS-only — no Windows, Linux or web version; Translation quality depends on your chosen OpenAI model and prompt; No built-in team seats or cloud sync; it is a desktop app [Profile (Markdown)](https://openaitools.app/tool/xpolyglot.md) ## Frequently Asked Questions ### How do Sider and Xpolyglot compare in monthly traffic? Sider has 2,644,740 monthly visits, while Xpolyglot has 0. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Sider has a month-over-month growth rate of -10.6%; Xpolyglot has 0%. ### How does pricing compare? Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans. Xpolyglot: Paid. One-time purchase of USD 9.99 for macOS, including lifetime free updates. A separate OpenAI API key is required and its usage is billed by OpenAI; a medium project of 300 keys into 5 languages is estimated at roughly USD 1.11 in API cost. ## 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 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) | | 4 | [Immersive Translate](https://openaitools.app/tool/immersive-translate) | 2,392,414 | -9.4% | Freemium, Free Trial | Bilingual AI translation for websites, documents, video and images | [.md](https://openaitools.app/tool/immersive-translate.md) | | 5 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) | | 6 | [Phrase](https://openaitools.app/tool/phrase) | 639,121 | -8.7% | Free Trial, Paid, Contact for Pricing | AI-powered localization and translation platform for global content | [.md](https://openaitools.app/tool/phrase.md) | | 7 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider. | [.md](https://openaitools.app/tool/harpa-ai.md) | | 8 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) | | 9 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider. | [.md](https://openaitools.app/tool/kome-ai.md) | | 10 | [Localazy](https://openaitools.app/tool/localazy) | 164,291 | -14.8% | Freemium, Free Trial, Paid | Software localization on autopilot with AI drafts and human review | [.md](https://openaitools.app/tool/localazy.md) | --- Source: https://openaitools.app/compare/sider-vs-xpolyglot More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)