Comparison

PageMoss vs HALIO AI

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

Head to head
About

PageMoss

Features
Read full description

Your thoughts, your device, your intelligence. PageMoss is a local-first knowledge management app where all your data is processed entirely on your device. Complete Privacy - All notes stored locally on your Mac or iPhone - No cloud uploads, no data harvesting - Works offline โ€” no internet required for any core feature - No account needed โ€” start writing immediately On-Device AI Assistant - Chat with AI without sending a single word to the cloud - RAG-powered conversations that search your notes semantically - Create, update, and organize notes through natural conversation Deep Research Mode - Transform scattered notes into comprehensive insights - Multi-strategy search combining semantic, keyword, and fuzzy matching - Generate structured research reports with citations Study Mode - AI-generated quizzes: multiple choice, true/false, short answer - Flashcards with SM-2 spaced repetition algorithm - AI-curated learning paths based on complexity Knowledge Graph - 8 visualization modes: Tag, Link, Semantic, Cluster, Ego, Mindmap, Folder, Timeline - AI-powered semantic analysis discovers hidden connections - Interactive exploration with real-time updates Intelligent Note-Taking - Markdown editor with live preview - LaTeX math equations support - Link your thoughts with [[wiki links]] - Auto-save with version history Obsidian Compatible - Bidirectional sync with your existing Obsidian vault - Preserves YAML frontmatter and folder hierarchy - Standard Markdown files โ€” export anytime No API keys. No usage limits. No monthly fees for AI. Your knowledge. Your device. Your rules. Unlock the full experience with unlimited access to advanced features. โ€ข Unlimited Research Mode โ€ข Unlimited Study Mode with Quiz / Flashcard / Learning Path Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/PageMoss-App-Page-2eff5511043f8098a29dd30b12ffbcb3

About

HALIO AI

Features
Read full description

HALIO is a private, offline-first AI assistant that lives on your iPhone. No cloud. No account. No subscription. No signal required. Every major AI app today sends your conversations to a server. HALIO doesn't. The model runs on your device, your prompts stay on your device, and your history never leaves your phone. Airplane mode, a spotty connection, or no connection at all โ€” HALIO keeps working. WHY HALIO โ€ข 100% on-device โ€” GPU-accelerated for fast, efficient inference on modern iPhones. โ€ข Truly private โ€” your conversations are stored locally and never transmitted. โ€ข No sign-up โ€” open the app and start chatting. โ€ข No subscription โ€” one-time download, no hidden tiers, no server-side rate limits. โ€ข Offline by default โ€” works on a plane, on the subway, in the woods, under a desk. WHAT YOU CAN DO โ€ข Ask questions, brainstorm ideas, draft writing, summarize notes. โ€ข Dictate messages with on-device speech recognition. โ€ข Attach photos from your library to ground a conversation. โ€ข Keep multiple conversations going in parallel. โ€ข Use it as a thinking partner without worrying who's reading. FROM BUILDERBIAS HALIO is built by BuilderBias โ€” intentional, transparent, responsible AI by design. We believe your AI should work for you, not the other way around. That means running on hardware you own, with data you control, under terms you can read. Download HALIO. Go offline. Keep thinking.

Screenshots

PageMoss4 screens
HALIO AI3 screens

Verdict

The call

The clearest difference is in-app purchases: HALIO AI at none against PageMoss's 3. HALIO AI also leads on iOS requirement (15.1 vs 18.0). 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. PageMoss sells 3 in-app purchases, starting at $9.99 per month. HALIO AI asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
PageMoss versus HALIO AI: the parameters behind the verdict, then further details
ParameterPageMossHALIO AI
PriceFreeFree
Update frequencyEvery 6 daysโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.015.1 โ€” better
Further details โ€” not scored
Size56 MB36 MB
Age rating4+17+
Developerharim kangBruce Elgin

In-app purchases

3 purchases

PageMoss

Subscriptions2
  • PageMoss Pro Subscription - Monthly$9.991 Month
  • PageMoss Pro Subscription - Yearly$59.991 Year
One-time1
  • PageMoss Pro$99.99
None

HALIO AI

No in-app purchases

Questions

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

Other comparisons