Comparison

HTML Slide AI vs hYYa Encrypted Notes

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

Head to head
About

HTML Slide AI

Features
Read full description

# Create Slides with AI—Just Describe What You Need HTML Slide AI lets you create HTML-based presentations simply by describing what you want in your own words. Create proposals, business presentations, service introductions, educational materials, and many other types of slides directly from your smartphone or tablet. Because the slides are built with HTML, you can create expressive presentations with flexible layouts, colors, charts, tables, and other visual elements. Once generated, your slides can be edited, previewed, and presented directly in the app. ## Features ### Just Describe What You Want Simply tell the AI what kind of presentation you want to create. The AI organizes your ideas and automatically generates the slide structure, titles, content, and design. > Example: “Create a presentation introducing a new service.” > The AI creates slides covering the service overview, key features, use cases, and more. > Example: “Create an eight-slide proposal for improving internal operations.” > The AI organizes the presentation into sections such as current challenges, proposed improvements, expected results, and next steps. ### Edit Easily with AI Give the AI additional instructions to revise your presentation. You can update not only the wording, but also the structure, colors, layout, and overall design. > Example: “Change the entire presentation to a calm blue color scheme.” > Example: “Shorten the text and make the key points easier to understand.” ### Edit Individual Slides Select a slide and use AI to edit only that slide. This is useful when you want to make detailed changes without affecting the structure of the rest of the presentation. > Example: “Add a pricing table to this slide.” > Example: “Rewrite this slide for a beginner audience.” ### AI-Powered Improvement Suggestions The AI can review your entire presentation and suggest improvements from multiple perspectives, including structure, readability, text density, and audience suitability. - Improve the overall presentation flow - Adjust text length and density - Improve the title slide - Make terminology and wording consistent - Identify content that could be visualized - Add a conclusion or next steps - Check for typos and unnatural wording ### Flexible HTML-Based Design Because every slide is created with HTML, you can use more than just text and images. Create tables, charts, card-based layouts, and other visually rich designs suited to your content. The AI can also suggest presentation styles that go beyond conventional slide layouts. ### Instant Preview Preview your presentation immediately after creating or editing it. Review the content and design as you work, making it easy to refine your slides efficiently. ### Present Directly from the App Display your completed slides and present them directly within the app. Creation, editing, previewing, and presenting can all be completed in one place. ### Export to PDF, Images, and Print Export your presentation in the format that best suits your needs. - Save as a PDF - Save individual slides as images - Print your presentation - Save in the app’s native format for later editing This makes it easy to share, distribute, print, and continue editing your presentations. ## Use Cases - Business proposals and planning documents - Product and service introductions - Sales presentations - Internal reports and process improvement proposals - Class and lecture materials - Seminar and event presentations - Project status reports - Research summaries and idea organization - Self-introductions and portfolios - Prototyping HTML-based presentation designs With the power of AI, presentation creation begins with a simple description. No advanced design or HTML knowledge is required. Just describe what you want, and the AI will turn your ideas into a presentation. Combine AI-powered generation with the flexibility of HTML to create expressive slides quickly and easily.

About

hYYa Encrypted Notes

Read full description

Encrypted notes that only you can read. hYYa Encrypted Notes is a private notepad, diary and journal for iPhone, iPad and Mac. Keep your notes on this device, or sync them through your own iCloud Drive or Google Drive with Pro. Every note is encrypted on your device before it is saved. There is no account to create and no hYYa server to hold a copy, so your notes stay yours alone. No servers. No leaks. No compromises. ENCRYPTED BEFORE IT IS SAVED • End-to-end encryption with AES-256-GCM, through Apple's own CryptoKit, on your device. • Titles, folder names and dates are encrypted too. Anyone browsing the files sees only random identifiers. • Lock with Face ID or Touch ID, with your passcode or Mac password as the fallback. • Search the full text of every note. The search index is encrypted like the notes, so searching never leaves a readable copy behind. SYNC YOUR WAY, WITH PRO • Through your own iCloud Drive, across your iPhone, iPad and Mac. • Through your own Google Drive as well, to reach your other devices. Your notes never leave your device unencrypted. • Or keep your notes on this device only, free. Writing, search and export all work offline. • Edits made on two devices are merged back together instead of one device's copy winning. If the same note changes in two places at once, both versions are kept. Nothing you typed is ever silently discarded. WRITE THE WAY YOU THINK • Live Markdown as you type: headings, bold, italic, code, strikethrough, quotes, lists and checklists, with a formatting bar when you want one. • Folders, pinned notes and colour labels. • Write in any language: Arabic paragraphs read right-to-left and English ones left-to-right, in the same note. • Attach pictures and files. Pictures show inside the note; PDFs and other files open with a tap on iPhone and iPad, or in your usual app on Mac. Every attachment is encrypted exactly like the words around it. YOUR WRITING STAYS PORTABLE • Export every note as plain Markdown, with its pictures and files beside it, whenever you like, for free. • Import from Markdown, plain text, HTML, RTF or an Evernote export. • No analytics, no tracking, no advertising identifier and no third-party SDKs. MADE FOR IPHONE, IPAD AND MAC • Native on every device, not a web wrapper. • On Mac: a full menu bar, keyboard shortcuts, printing and a proper Settings window. • On iPad: your folders in a sidebar, and drag and drop to file a note. • Dynamic Type, VoiceOver, Reduce Motion, and light and dark themes. FREE, AND HONEST ABOUT IT Keep up to 15 notes free on one device for as long as you like, with no time limit and no trial to run out. Encryption, biometric lock, import and export are free for everyone and always will be. One purchase unlocks unlimited notes and sync on iPhone, iPad and Mac together. Notes that already sync keep syncing. It is never a subscription, and nothing you have written is ever locked, hidden or taken away.

Screenshots

HTML Slide AI4 screens
hYYa Encrypted Notes4 screens

Verdict

The call

The clearest difference is in-app purchases: HTML Slide AI at none against hYYa Encrypted Notes's 2. HTML Slide AI also leads on iOS requirement (15.6 vs 26.0). hYYa Encrypted Notes's advantage is update cadence (every 4 days vs monthly). On price, ads and device support 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. hYYa Encrypted Notes sells 2 one-off in-app purchases. HTML Slide AI asks for nothing beyond the download.

UpkeepUpdate frequency

HTML Slide AI ships an update monthly, hYYa Encrypted Notes every 4 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 3 level
HTML Slide AI versus hYYa Encrypted Notes: the parameters behind the verdict, then further details
ParameterHTML Slide AIhYYa Encrypted Notes
PriceFreeFree
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better26.0
Further details — not scored
Size61 MB7 MB
Age rating4+4+
DeveloperYUKI TANAIKEHassaan Abdeen

In-app purchases

None

HTML Slide AI

No in-app purchases

2 purchases

hYYa Encrypted Notes

One-time2
  • 30-day TrialFree
  • hYYa Encrypted Notes Pro$24.99

Questions

Is HTML Slide AI free?
HTML Slide AI is free to download, with no in-app purchases.
Is hYYa Encrypted Notes free?
hYYa Encrypted Notes is free to download, with in-app purchases available.
Do HTML Slide AI or hYYa Encrypted Notes have ads?
Neither HTML Slide AI nor hYYa Encrypted Notes shows ads.
Which is updated more often, HTML Slide AI or hYYa Encrypted Notes?
HTML Slide AI ships an update monthly, and hYYa Encrypted Notes every 4 days. Most recently, HTML Slide AI was updated on October 25, 2026 and hYYa Encrypted Notes on October 29, 2026.

Other comparisons