Ask Screen vs Sider AI — Honest Comparison

Ask Screen vs Sider AI — Honest Comparison (2026)

Both Ask Screen and Sider AI aim to bring large language models and multimodal assistants into the browser without forcing you to switch tabs. They take different design choices: Ask Screen emphasizes capture-first workflows and bring-your-own model support; Sider emphasizes a built-in writing-action toolbar and broad platform support. This comparison explains those differences, shows real examples, and helps you decide which fits your workflow.

Disclosure: we make Ask Screen. Product details for Sider are based on public documentation and pages.

At a glance

A short summary table to orient the most common feature comparisons.

A GitHub-flavored comparison table with more granular features:

How they differ — deeper look

Capture-first vs action-first

• Ask Screen: Designed around "ask AI about what I see." The default keyboard shortcut (Alt+S) lets you select any rectangular area of the screen, converts it to an image, and posts it directly into the sidebar conversation. That flow reduces friction when your question begins with a visual artifact — a chart, a line in an image, a PDF snippet, or a screenshot of an error message.
• Sider: Optimized around page context and writing tasks. It includes a toolbar for actions like rewrite, translate, summarize, and text extraction. Those actions are convenient when most of your work is text editing and page-level manipulation.

Bring-your-own (BYO) AI keys and cost model

• Ask Screen supports connecting to your own ChatGPT, Claude, Gemini, or Grok account. When you use your own subscription or API key, you control where queries are billed and often avoid paying twice.
• Sider uses credits on its gateway for many model accesses. This can be simpler for casual users who don't want to expose keys, but it can be cost-inefficient for those who already have paid models.

How images are handled

• Ask Screen sends the selected image into the chat context and then allows the model to analyze it. Many workflows involve OCR, chart data extraction, or iterative clarifying questions about what the screenshot shows.
• Sider supports screenshots and image inputs as well, but its UX tends to lean on page screenshots and action pipelines (e.g., extract text → summarize → rewrite).

Privacy, security, and enterprise controls

• Security is a function of how data is routed and stored. Ask Screen documents its handling and gives you options to route to your own keys. For enterprise controls, see our security documentation and contact sales for retention and compliance options.
• Sider’s security posture centers on its gateway and credit model; enterprises should review their data processing agreements and hosting policies.

Browser and platform support

• Ask Screen targets the Chromium family. That includes Chrome, Edge, Brave, Arc, Opera, and Vivaldi.
• Sider supports Chrome and Edge and has a Safari build; this matters if you or your organization rely on Safari or Apple-specific features.

User interface and workflow differences

• Ask Screen uses a conversation-first interface: capture or highlight, then ask a question into the chat. This promotes iterative clarification (follow-up questions, refine the prompt).
• Sider provides a set of quick actions that run single-purpose prompts on selected text. That is faster for simple text transformations (rewrite, translate, expand).

Worked examples

Example 1 — Quick data-check from a chart (capture-first) Scenario: You see a chart in a web dashboard showing monthly revenue and want to ask if a sudden drop is statistically significant. Steps (Ask Screen):

1. Press Alt+S and drag a rectangle around the chart.
2. The selected region appears in the Ask Screen sidebar as an image inside the chat.
3. Ask: “Identify the x/y axes, extract numeric values, and say whether the drop in March looks like an outlier compared to the previous six months. Show the extracted series as a CSV.”
4. The model uses OCR and attempts to parse the chart. If the first pass missed labels, ask a follow-up: “The axis labels are unclear — can you make a best-effort guess and flag low-confidence values?” Why this works: The capture-first flow removes the need to save an image, upload it, and then paste it into a new chat. Iteration happens in place.

Example 2 — Rewriting a paragraph while preserving technical terms (action-first) Scenario: You want a clearer email version of a paragraph directly on a web compose window. Steps (Sider):

1. Highlight the paragraph in the composer.
2. Click the Sider rewrite action and choose “simplify while keeping technical terms.”
3. The toolbar returns rewritten text that you can paste back quickly. Why this works: Single-click actions are faster for short transformations and reduce the need to craft prompts.

Example 3 — Cost comparison calculation (BYO vs gateway) Scenario: You send 500 prompt+response tokens per day for 22 working days (11,000 tokens). Suppose your model provider charges $0.0001 per token for equivalent usage.

• With BYO (Ask Screen): The token cost is directly billed through your existing subscription or API key at the provider’s rate. If you already have a suitable subscription, incremental cost may be zero for moderate usage.
• With gateway credits (Sider): Sider deducts from its credits where each request may carry a markup. For heavy users, the gateway approach can result in higher total cost unless Sider’s credits are bundled advantageously. Note: Actual pricing depends on model, plan, and provider. Check /pricing for Ask Screen and Sider’s public pricing pages.

Pricing and cost considerations

• Ask Screen: free tier (30 questions/day), Plus or Pro for unlimited and team plans. The BYO-key option means you can use your existing subscriptions (ChatGPT Plus, Claude Pro, Gemini Pro, etc.) and avoid paying a second time to route queries.
• Sider: free tier with daily credits, paid tiers increase credit allotments and provide premium models or features.

Cost modeling guidance:

• Light users (occasional queries, < 100 interactions/month): Either free tiers will often suffice. Evaluate based on device/browser support.
• Power users who generate many multimodal queries (OCR, images, long transcripts): BYO keys are often better for long-term costs because you aren’t paying twice for compute.
• Teams: Compare seat pricing, central billing, and audit/compliance features. Request enterprise quotes for seat-based discounts and SSO.

Link to Ask Screen pricing and features for current plan details: see /pricing and /features.

Pros and cons

Pros and cons — Ask Screen

• Pros
  • Capture-first flow for fast image/question iteration.
  • BYO model support (ChatGPT, Claude, Gemini, Grok).
  • Broad Chromium browser coverage.
  • Lower long-term cost if you already have an AI subscription.
• Cons
  • No native Safari extension (as of this article).
  • Fewer single-click writing toolbar actions by default; relies on chat templates.
  • Some users prefer the action-oriented UX for quick text edits.

Pros and cons — Sider AI

• Pros
  • Built-in writing toolbar for single-click rewrite, translate, summarize.
  • Longer track record with a mature set of in-product actions.
  • Available on more browsers including Safari (at time of writing).
• Cons
  • Credit-based gateway model can be more expensive if you already pay for a provider.
  • Page-centered capture workflow may be slower for region-select image queries.
  • Less direct BYO integration in some cases; check current integrations.

Best for

Ask Screen — Best for:

• People who frequently ask AI about visual parts of their screen (charts, screenshots, PDFs).
• Users who already subscribe to a frontier AI and want to avoid paying a second time.
• Teams and individuals using Chromium-family browsers (Chrome, Edge, Brave, Arc, Opera, Vivaldi).

Sider — Best for:

• Users who want a compact set of single-click writing actions directly on page content.
• People who require Safari support or prefer Sider’s specific toolbar UX.
• Occasional users who prefer a credit-based gateway rather than managing keys.

FAQ

(Short answers; refer to product docs for full details.)

1. Does Ask Screen support Safari?

   • Not yet. Ask Screen targets Chromium-based browsers. Sider has a Safari build; consider that if Safari is critical.

2. Can I bring my own API key or ChatGPT account?

   • Yes. Ask Screen supports BYO keys for major providers. Using your key routes usage and billing through your provider.

3. How are screenshots and images processed?

   • Captured images are uploaded into the chat context and processed by the selected model and any OCR logic. If privacy is a concern, consult the extension’s security docs and plan options for enterprise retention policies.

4. What happens if I switch models mid-conversation?

   • Model switching is supported. Some providers maintain conversation context, others treat each request independently; results can differ. Expect small differences in outputs when switching models.

5. Which option is better for students?

   • It depends on the task. For image-based study materials and screenshots, Ask Screen makes capture and follow-up easier. For rewriting essays and quick grammar fixes, Sider’s action toolbar can be faster. See our blog on student workflows for specific tips: /blog/best-ai-tools-for-students-2026.

6. Are there team or enterprise plans?

   • Yes. Both vendors offer team/enterprise plans with admin controls, seat management, and compliance options. Contact sales for current offerings.

7. Is data stored or logged?

   • Both extensions may log telemetry and usage for product improvement. Ask Screen provides documentation on what is stored and options for enterprises; see /security and /faq for specifics.

8. Can I use the extension to analyze PDFs or documents?

   • Yes. Both support capturing or uploading document content; Ask Screen’s capture-first approach works well for visual snippets, while Sider’s actions are useful for bulk text transformations.

Final recommendation and next steps

Both Ask Screen and Sider AI are capable browser-side assistants. Choose Ask Screen if your primary workflow is “ask AI about what I see on the screen” and you prefer to use your own AI subscription to reduce long-term cost. Choose Sider if you rely on Safari or prefer a single-click action toolbar for rewriting and translation tasks.

To try Ask Screen now (free tier available) and see the capture-first workflow in action, install the extension and follow the quickstart at /install-extension. For more on how Ask Screen routes data and your key options, read our security documentation at /security, and if you want a walkthrough of common workflows, see /how-it-works. If pricing is a deciding factor, compare current plans at /pricing and review our features at /features.

Install Ask Screen and test the capture-first workflow on your next chart, screenshot, or PDF: /install-extension