Comparison

Notebook vs Zerowatt Zoe AI

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

Head to head
About

Notebook

Capture your thoughts, ideas, and tasks with a versatile digital notebook. Create rich notes with text, files, audio, and video. Organize content visually, collaborate in real-time, and access everything across your devices.

Highlights
  • Rich note creation with text, files, audio, and video
  • Checklist creation for task management
  • Bookmark collection and offline reading
  • Kanban-style note organization
  • Real-time collaboration and sharing
  • AI-powered journaling suggestions
  • Cross-device and cloud synchronization
Features
Read full description

Zoho Notebook is a free, ad-free note-taking app for students, teams and researchers: capture, find and reuse what you write down — typed notes, Apple Pencil handwriting, voice recordings with AI transcription, checklists, files and document scans in one note. Syncs across iPhone, iPad, Mac, Apple Watch and other devices. WHAT PEOPLE USE NOTEBOOK FOR 1. MEETING AND LECTURE NOTES Record with audio or video cards; Notebook AI turns it into searchable text with timestamps, so you jump straight to the decision instead of replaying it. Structured minutes with title, participants, decisions and action points sit in the note beside your highlights. Record screen and self at once; longer videos get chapters. 2. STUDY AND RESEARCH Record lectures and search the transcript weeks later. Scan textbooks and business cards, handwrite and sketch with Apple Pencil, use OCR to find text inside photos and handwritten notes, so nothing you captured becomes unfindable. A long note becomes an AI mind map before an exam. 3. DAILY TO-DOS AND JOURNALING Dedicated checklist cards keep tasks beside your notes, and recurring reminders keep them on schedule. Journaling prompts come from your own activity, easier to keep than a blank page. 4. FILES, SCANS, AND SAVED READING Add PDFs, Word docs and spreadsheets with file cards. Articles, videos, recipes and how-tos become Smart Cards, formatted automatically, readable offline and ad-free. Group it all into nested collections. QUESTIONS PEOPLE ASK Is it free? Yes, with 2GB of free storage and no ads. Notebook Pro adds more storage, longer notes, larger attachments, Email-In to save emails as notes, premium covers, and custom recurring reminders. Can I move my notes from Evernote, Google Keep, or OneNote? Yes, with dedicated migration tools; it arrives organized. Is my data private? Notes are encrypted in transit and at rest. We never sell your data and never show ads. Lock notes or notebooks with a password, Touch ID or Face ID; previews stay hidden until unlocked. Does it work offline? Yes. Create, edit and read offline, then pick up on another device once it syncs to the cloud. What can Notebook AI do? Transcribe audio and video, build mind maps, summarize and simplify, fix grammar, set tone (casual, professional, friendly, direct, or confident), translate into any language, draft notes, checklists, tables, code or a template from a prompt, and suggest tags. Notebook AI is a separate add-on. Does it use on-device AI and Siri? Yes. An on-device Knowledge Graph links ideas across notebooks and answers questions from your own notes. Siri creates and updates notes by voice with the app closed, and On-Screen Awareness summarizes what's on screen without switching apps. Can I share with non-users? Yes. @mention people to collaborate in real time, or publish a public note or video by link. MORE INSIDE - Search by title, content, tag, collaborator, or notebook; filter by any card type, contact, or link; search within one note; sort by date or relevance, with auto-suggestions and recent searches, offline and across languages - iPhone: text-search audio notes, share via iMessage, dictate with Siri, recent notes from the Notification Bar, SharePlay in calls - iPad: drag and drop, split view, slide over, multiple windows, Stage Manager - Apple Watch: record audio, scribble notes, check off lists, add photo notes, record in one tap from a watch face complication - VoiceOver and a dark interface - Roll back to any of a note's last 10 versions Subscriptions auto-renew unless cancelled and are charged to your Apple Account. Prices vary by location. Manage in your account settings. Privacy - https://www.zoho.com/privacy.html Terms - https://www.zoho.com/terms.html

About

Zerowatt Zoe AI

Features
Read full description

Zerowatt Zoe AI - Professional Energy Auditing Intelligence Transform your energy auditing workflow with Zerowatt Zoe AI, a specialized AI chatbot designed exclusively for energy professionals. Our advanced RAG-powered assistant delivers instant, technical insights for all your energy intelligence needs, functioning as your personal energy expertise companion. Built for Energy Professionals Whether you're an energy auditor, sustainability consultant, or facility manager, get expert-level responses to complex energy queries instantly. Core Capabilities: Energy Auditing Support • ASHRAE Level 1, 2, and 3 audit guidance • Energy Conservation Measure (ECM) recommendations • ROI and payback period calculations • Baseline consumption analysis • Industry benchmarking Technical Expertise • HVAC optimization strategies • Lighting retrofit analysis • Building envelope assessments • Load profile interpretation • Renewable energy integration • Demand response strategies Compliance & Standards • ISO 50001 guidance • LEED certification support • Energy Star benchmarking • Local code compliance • Utility rebate programs • Carbon footprint calculations Key Features: • Intelligent Q&A - Ask complex technical questions, get actionable answers • Audit Assistance - Calculations, recommendations, and report support • Real-time Solutions - On-site troubleshooting with instant AI help • Technical Calculations - Quick formulas, conversions, and analysis • Best Practices - Industry-proven strategies at your fingertips • M&V Support - Measurement and verification protocols Example Queries: • Calculate LED retrofit payback for 50,000 sq ft warehouse • Key ECMs for reducing HVAC energy in commercial buildings • ASHRAE Level 2 energy audit process • VFD installation savings calculation • Compressed air system optimization best practices • Demand charge reduction strategies Applications: • Commercial Buildings (offices, retail, hotels) • Industrial Facilities (manufacturing, warehouses) • Institutional (hospitals, schools, government) • Data Centers (PUE optimization) • Multifamily Residential Why Zerowatt Zoe AI? Specialized Knowledge Purpose-built for energy auditing with training on technical standards, case studies, and industry best practices - not generic AI. Save 70% Research Time Instant answers instead of searching through manuals and technical documents. Always Current Regular updates with latest codes, standards, and technologies. Professional Network Connect with energy professionals sharing insights and experiences. Conversational Interface Natural language processing understands your technical terminology and context, providing detailed explanations just like consulting with a senior energy expert. Perfect For: • Certified Energy Managers (CEM) • Energy Auditors • Sustainability Consultants • Facility Managers • HVAC/Electrical Engineers • ESCOs • Utility Program Managers Transform your energy auditing practice with AI-powered intelligence. Download Zerowatt Zoe AI and experience the future of energy consulting.

Screenshots

Notebook4 screens
Zerowatt Zoe AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Zerowatt Zoe AI at none against Notebook's 8. On price, ads, device support and iOS requirement 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. Notebook sells 7 in-app purchases, starting at $2.49 per month. Zerowatt Zoe AI asks for nothing beyond the download.

Scorecard1 real difference · 9 level
Notebook versus Zerowatt Zoe AI: the parameters behind the verdict, then further details
ParameterNotebookZerowatt Zoe AI
PriceFreeFree
Rating4.7 (24K ratings) — better—
Positive reviews72.9% of reviews—
Number of ratings24K — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size221 MB26 MB
Age rating4+4+
DeveloperZoho CorporationAlphageek Enterprises Private Limited

Bugs and requests

Notebook

Reported bugs

4 issues
  • Notes disappearing or getting corrupted
  • Freezing and crashing issues
  • Inconsistent behavior when editing notes
  • Syncing problems across devices

Requested features

5 requests
  • Improved sorting and reordering options for notes
  • Enhanced search capabilities
  • Ability to export notes in various formats
  • More customization options for notebook covers
  • Integration with other productivity apps

Zerowatt Zoe AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Notebook

Subscriptions7
  • Notebook Pro$2.491 Month
  • Notebook Pro Plus$3.991 Month
  • Notebook AI$4.991 Month
Show 4 more
  • Notebook Personal$14.991 Year
  • Notebook Pro2 variants$24.991 Year
  • Notebook Pro Plus$39.991 Year
  • Notebook AI$49.991 Year
None

Zerowatt Zoe AI

No in-app purchases

Questions

Is Notebook free?
Notebook is free to download, with in-app purchases available.
Is Zerowatt Zoe AI free?
Zerowatt Zoe AI is free to download, with no in-app purchases.
Do Notebook or Zerowatt Zoe AI have ads?
Neither Notebook nor Zerowatt Zoe AI shows ads.

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