Comparison

Sidekick vs Notabook

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

Head to head
About

Sidekick

This AI assistant leverages advanced models like GPT-5.4 and Gemini to provide instant answers, engage in natural conversations, and act as a versatile virtual helper for work, study, and daily tasks. It offers interactive AI characters, voice input, and tools for writing, summarizing documents, and generating images.

Highlights
  • Advanced AI models (GPT-5.4, Gemini)
  • Interactive AI characters
  • Virtual assistant for tasks
  • Voice input and speech recognition
  • AI writing and editing tools
  • Document summarization and OCR
  • AI image generation
Features
Read full description

Sidekick AI Chat — the free AI Chatbot and all-in-one AI assistant powered by ChatGPT 5, Claude Sonnet, Gemini 3 Flash, MiniMax 2.7, OpenAI, and advanced AI technology. Chat AI GPT delivers instant answers, AI Chat conversations, creative tools, and personal help for work, study, and life. Meet 18 unique AI Characters and use Free ChatGPT 5 intelligence anywhere. AI CHARACTERS & COMPANIONS Explore 18 fictional AI characters — from a witty debate partner to a curious travel buddy. Each has a distinct voice and style. Dive into storytelling, interactive character adventures, roleplay, and playful conversations powered by AI. AI ASSISTANT & PROJECTS Your versatile virtual assistant handles daily work. Ask AI for help with brainstorming, planning, writing emails, organizing tasks, studying, and translating content. Projects keep chats, files, research, model choices, and web-search settings organized by topic, so your personal AI assistant can stay focused on each goal. Brainstorm ideas, plan trips, solve homework, and manage long-running work in one place. VOICE MODE & VOICE INPUT Speak your questions hands-free with voice typing and speech recognition. Sidekick converts your voice to text instantly, so you can dictate prompts, notes, and messages without typing. Voice input makes asking AI effortless on the go. AI INTELLIGENCE Activate super precision mode for high accuracy on demanding tasks. Get real-time information and reliable answers powered by the OpenAI API. Ask AI complex questions and receive instant, well-sourced replies. Math AI Solver breaks down equations step by step. Pick from top models — Claude Sonnet by Anthropic, Gemini 3 Flash by Google, MiniMax 2.7, and ChatGPT-style intelligence. AI WRITING ASSISTANT Your AI Writer and AI Writing Assistant in one. Draft AI Email replies, polish resumes, write cover letters, and create professional documents in seconds. Grammar checker, text rewriter, tone adjuster, and Chat AI GPT writing help support any language or format. DOC CENTER & WEB TOOLS Summarize web pages, PDFs, text, Markdown files, and pasted links into clear takeaways. The new YouTube Summarizer turns video transcripts into key points, outlines, and follow-up questions. OCR text recognizer extracts text from images and scans. Web Search delivers real-time answers sourced directly from the internet. Summarize, rewrite, and translate any content. AI CAMERA Snap a photo and AI Camera instantly analyzes it. Identify objects, extract text, solve math problems, or understand complex diagrams — all from a single shot. AI IMAGE & VIDEO Turn text to image with a powerful AI Image Generator and AI Art Generator powered by OpenAI GPT Image 1.5 and GPT Image 2. Generate, edit, and regenerate images right in chat. Create stunning AI art, illustrations, and photo-realistic AI photo generation with Dall e 2-3 style prompting, DALL E creative workflows, and Dall e 2-3 inspired results. New Image to Video and Photo to Video tools animate a picture into a short clip from chat or the Generate section. Save creations in My Images and My Videos. AI MUSIC & AI VOICE GENERATOR AI Music tools help shape song ideas, lyrics, and creative direction. AI Music brainstorming pairs with AI Voice and AI Voice Generation to bring content to life. Convert text with a natural text-to-speech reader in multiple languages and generate lifelike narration for videos, presentations, and accessibility. AI COMPANION Meet your AI Companion — a curious, knowledgeable thinking partner always ready to help. Free Chat GPT powers engaging conversations that inform, inspire, and motivate. Free ChatGPT support makes learning, planning, and creative work faster with your personal AI assistant. Terms of Use (EULA): https://sidekk.com/terms Privacy Policy: https://sidekk.com/privacy

About

Notabook

Record, transcribe, and summarize audio with AI. Generate action items, ask questions about your notes, and create study tools. Export in various formats for seamless workflow integration.

Highlights
  • AI-generated notes and action plans
  • Ask questions about transcripts
  • Accurate, speaker-labeled transcripts
  • Live captioning
  • One-tap recording
  • AI-powered study tools (flashcards, quizzes)
  • Export to PDF, DOCX, text
Features
Read full description

Notabook AI — Walk out of a meeting with the notes already done. Record once, and get accurate transcripts, AI summaries, and clear action items automatically. Record. Transcribe. Summarize. Act. Who It’s For • Professionals — Get clean meeting notes and follow-ups without the busywork. • Students — Review lectures and lock in learning with AI flashcards and quizzes. • Journalists & Researchers — Transcribe interviews with precision. • Everyone — From voice memos to webinars, Notabook handles it all. From Spoken Words to Organized Knowledge • AI-Generated Notes & Action Plans — Get a clear summary, key takeaways, and a structured next-step list in seconds. • Ask Your Notes Anything — Ask questions about any transcript and get instant, accurate answers. • Accurate, Searchable Transcripts — Word-perfect, speaker-labeled transcripts with smart punctuation, in multiple languages — ideal for global teams and foreign-language material. • Live Captioning — Real-time captions for live conversations or playback. Built for Your Workflow • One-Tap Capture — Start recording instantly, even in the background or with the screen locked. No time limits. • Study Tools — Turn any note into AI-powered flashcards and quizzes for smarter review. • Share & Export with Ease — Export as PDF, DOCX, or text, print directly, or share summaries as clean cards. Copy action items into your favorite tools, or push them to your calendar. Your Privacy First Your voice is yours. We use end-to-end encryption and a zero-data-retention policy for AI processing. Your recordings are never sold or used to train public models. Ready to master every conversation? Download Notabook and turn every important discussion into actionable knowledge. Terms of Use: https://notabook.app/terms-of-use.html Privacy Policy: https://notabook.app/privacy-policy.html

Screenshots

Sidekick4 screens
Notabook4 screens

Verdict

The call

The clearest difference is rating: Notabook at 5.0 against Sidekick's 4.6. Notabook also leads on iOS requirement (16.4 vs 18.0). Sidekick's advantage is ratings volume (10 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sidekick sells 6 in-app purchases, starting at $3.99 per 7 days and Notabook sells 6 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Notabook holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Sidekick has 10 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Sidekick ships an update every 11 days, Notabook weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 6 level
Sidekick versus Notabook: the parameters behind the verdict, then further details
ParameterSidekickNotabook
PriceFreeFree
Rating4.6 (10 ratings)5.0 (2 ratings) — better
Number of ratings10 — better2
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size94 MB93 MB
Age rating17+4+
DeveloperSonderSpot OU燃 温

Customer experience

Sidekick

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%

Notabook

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

Sidekick

Subscriptions6
  • Pro Weekly$3.997 Days
  • PRO Weekly Trial3 Days trial$7.997 Days
  • PRO Monthly$19.991 Month
Show 3 more
  • PRO Yearly$29.991 Year
  • PRO Yearly$39.991 Year
  • PRO Yearly$59.991 Year
6 purchases

Notabook

Subscriptions6
  • Premium Weekly2 variants$6.997 Days
  • Premium Weekly3 Days trial$6.997 Days
  • Premium Monthly3 Days trial$14.991 Month
Show 3 more
  • Premium Monthly2 variants$14.991 Month
  • Premium Yearly$89.991 Year
  • Premium Yearly3 Days trial2 variants$89.991 Year

Questions

Is Sidekick free?
Sidekick is free to download, with in-app purchases available.
Is Notabook free?
Notabook is free to download, with in-app purchases available.
Which has better reviews, Sidekick or Notabook?
Notabook is rated higher. Sidekick averages 4.6 out of 5 from 10 ratings, while Notabook averages 5.0 from 2 ratings.
Do Sidekick or Notabook have ads?
Neither Sidekick nor Notabook shows ads.
Which is updated more often, Sidekick or Notabook?
Sidekick ships an update every 11 days, and Notabook weekly. Most recently, Sidekick was updated on October 30, 2026 and Notabook on November 5, 2026.

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