Comparison

FastMind vs Prompt Rewriter

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

FastMind

Features
Read full description

FastMind is an AI assistant that helps you boost your productivity and save time. With its natural language processing technology powered by ChatGPT, you can ask general questions and get instant answers, write and reply to emails, generate excel formulas, write code, create reports, and outline presentations. FastMind simplifies your daily tasks and enables you to focus on what matters most. Try it today and experience the power of AI at your fingertips.

About

Prompt Rewriter

Features
Read full description

Prompt Rewriter helps you save time and get better answers from AI by turning rough ideas into clear, professional prompts before you send them. Instead of rewriting the same prompt over and over, write your idea once in Safari and let Prompt Rewriter improve it. The extension helps add structure, clarify your request, improve wording, include useful context, and guide the AI toward a more helpful response. Use Prompt Rewriter to: - Save time when writing AI prompts - Turn quick thoughts into polished instructions - Get clearer, more useful AI answers - Improve prompts for work, school, research, planning, writing, and everyday questions - Choose short, balanced, or deeper responses - Ask the AI to include sources when needed - Format answers as checklists, tables, roadmaps, decision memos, or one-page briefs Prompt Rewriter is useful for anyone who uses AI tools and wants better results with less effort. It can help with emails, brainstorming, learning, content writing, business planning, decision-making, summaries, research questions, and professional communication. The extension works inside Safari on supported AI chat websites, including ChatGPT, Claude, Gemini, DeepSeek, Grok, Mistral, Qwen, Z.ai, Cohere, and Meta AI. No account is required to start using Prompt Rewriter.

Screenshots

FastMind4 screens
Prompt Rewriter4 screens

Verdict

The call

The clearest difference is in-app purchases: Prompt Rewriter at none against FastMind's 2. FastMind's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. FastMind sells 2 in-app purchases, starting at $4.99 per month. Prompt Rewriter asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
FastMind versus Prompt Rewriter: the parameters behind the verdict, then further details
ParameterFastMindPrompt Rewriter
PriceFreeFree
Update frequencyDailyโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better15.0
Further details โ€” not scored
Size64 MB2 MB
Age rating4+4+
DeveloperSalim AlkaabiFederated Unified Worker Network Inc

In-app purchases

2 purchases

FastMind

Subscriptions2
  • Pro Access1 Month trial$4.991 Month
  • Pro Access1 Month trial$49.991 Year
None

Prompt Rewriter

No in-app purchases

Questions

Is FastMind free?
FastMind is free to download, with in-app purchases available.
Is Prompt Rewriter free?
Prompt Rewriter is free to download, with no in-app purchases.
Do FastMind or Prompt Rewriter have ads?
Neither FastMind nor Prompt Rewriter shows ads.

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