# Mathful vs Sider

Mathful records 31,128 monthly visits with -15.2% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [Mathful](https://openaitools.app/tool/mathful-com) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://www.mathful.com | https://sider.ai |
| Categories | AI Math, AI Homework Helper, AI OCR, AI Assistant | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 31,128 | 2,644,740 |
| MoM Growth Rate | -15.2% | -10.6% |
| Primary Market | Colombia | United States |
| Direct Visits | 10,795 | 1,699,535 |
| Review Score | 4.3 | 4.5 |
| Saved Count | 8 | 31 |
| Supported Platforms | Website | Website |

## Mathful

Mathful positions itself as a "photo math" assistant: instead of hunting for answers in the back of a textbook, you point the tool at a question and it lays out the method as well as the result. Input can be typed directly into the solver, pasted as an image, or scaled up in the built-in calculator, which handles arithmetic, linear and quadratic equations, derivatives, integrals and matrix operations. The selling point is not just the final answer but the intermediate steps, so the output doubles as a study aid.

The product markets itself as a more precise alternative to general-purpose conversational assistants for math, claiming around 98% accuracy and coverage of more than ten math branches. Because it is purpose-built for equations rather than open-ended chat, it tends to produce structured, notation-aware answers. It also advertises round-the-clock availability and encrypted transmission of user input.

Mathful runs on a freemium model. A free tier lets you try the solver and photo upload with limited daily credits; the Monthly Pro plan removes some limits and the Yearly Pro plan unlocks unlimited problem solving and image uploads. It is aimed primarily at students, parents helping with homework, and self-learners who want to see the reasoning rather than just a number.

**Pricing & Plans:** Freemium. A free tier is available for trying the math solver and photo upload. Monthly Pro costs $9.90/month with 30 solved problems and 30 image uploads per day. Yearly Pro costs $4.90/month (billed annually) and includes unlimited math problem solving and unlimited image uploads, plus priority support. Subscriptions renew automatically unless cancelled.

- **Photo math solver:** Upload or paste a picture of a math problem and Mathful scans it, interprets the notation and produces a worked solution instead of just a raw number.
- **Step-by-step explanations:** Every answer comes with the intermediate working, so you can follow the method and use the output as a study reference rather than a shortcut.
- **10+ math branches covered:** Handles arithmetic, word problems, pre-algebra and algebra, geometry, trigonometry, pre-calculus and calculus, statistics, matrix operations and more.
- **Built-in step calculator:** A dedicated calculator mode handles linear and quadratic equations, derivatives, integrals and matrix operations, showing the steps for each calculation.
- **Daily and unlimited plans:** The free tier caps questions, while the Yearly Pro plan removes caps entirely for heavy users, students and educators.

**Strengths:** Photo input removes the need to retype complex equations with special notation; Answers include the full working, which makes the tool useful for learning, not just answer-checking; Broad subject coverage spanning arithmetic through calculus, matrices and statistics; Free tier and a discounted yearly plan keep the entry cost low

**Limitations:** Free usage is capped and the monthly Pro plan still limits daily questions and image uploads; Accuracy claims are self-reported, so results on advanced or ambiguous problems should still be sanity-checked; Requires a paid subscription to lift limits, with automatic renewal unless cancelled

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

## 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)

## Frequently Asked Questions

### How do Mathful and Sider compare in monthly traffic?

Mathful has 31,128 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Mathful has a month-over-month growth rate of -15.2%; Sider has -10.6%.

### How does pricing compare?

Mathful: Freemium. Freemium. A free tier is available for trying the math solver and photo upload. Monthly Pro costs $9.90/month with 30 solved problems and 30 image uploads per day. Yearly Pro costs $4.90/month (billed annually) and includes unlimited math problem solving and unlimited image uploads, plus priority support. Subscriptions renew automatically unless cancelled. 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.

## 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 | [Gauth](https://openaitools.app/tool/gauthmath-com) | 7,164,627 | +52.4% | Freemium | Snap a homework question and get step-by-step AI answers | [.md](https://openaitools.app/tool/gauthmath-com.md) |
| 4 | [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) |
| 5 | [MathGPT](https://openaitools.app/tool/mathgpt-ai-math-solver-animator) | 2,254,286 | +10.3% | Freemium | AI math solver that explains every step and animates the solution | [.md](https://openaitools.app/tool/mathgpt-ai-math-solver-animator.md) |
| 6 | [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) |
| 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 | [Math AI Solver](https://openaitools.app/tool/math-ai-solver-free-online) | 298,744 | +8.5% | Freemium | Snap or type any math problem and get step-by-step solutions | [.md](https://openaitools.app/tool/math-ai-solver-free-online.md) |
| 9 | [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) |
| 10 | [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) |

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Source: https://openaitools.app/compare/mathful-com-vs-sider

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