Comparison

BastionChat vs PageMoss

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

Head to head
About

BastionChat

Features
Read full description

Private AI that runs entirely on your iPhone, iPad and Mac. Chat with your documents, get instant summaries and ask out loud, with no internet, no account and no data collected. ASK YOUR DOCUMENTS Import a contract, a manual, a report or a scanned PDF. Ask in your own words and get a clear answer, with the source one tap away, so you can check it instead of trusting it. Small documents are read in full; large libraries are searched. INSTANT SUMMARIES Turn a long file into the key points: parties, dates, amounts, conditions. JUST ASK OUT LOUD Voice mode with on-device speech recognition. Nothing is uploaded. UNDERSTANDS IMAGES Ask about photos and screenshots with vision models. WORKS OFFLINE On a plane, at sea, underground: the AI model lives on your device, so it keeps working. In airplane mode, web tools are simply not offered. PRIVATE BY DESIGN No account. No tracking. Your documents and conversations never leave the device. Apple's privacy label: Data Not Collected. Lock the app with Face ID using iOS's built-in app protection. YOUR CHOICE OF MODEL A curated catalog of open models (Qwen, Gemma, Phi, LFM and more) sized for your device: fast ones on iPhone, larger ones on iPad and Mac. Or import any GGUF model from Hugging Face. FOR POWER USERS Adjustable thinking (Off, Short, Full), calculator, optional web search, MCP tools for agent workflows. ONE PURCHASE No subscription, no usage limits, Family Sharing. Download a model once, then everything runs locally. Requires iOS 18 or later. Larger models need more memory; the app recommends what fits your device.

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

Screenshots

BastionChat4 screens
PageMoss4 screens

Verdict

The call

The clearest difference is price: PageMoss at Free against BastionChat's $4.99. PageMoss also leads on update cadence (every 6 days vs every 4 months). BastionChat's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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

PageMoss is free to download; BastionChat costs $4.99 up front. PageMoss sells 3 in-app purchases, starting at $9.99 per month. BastionChat asks for nothing beyond the download.

UpkeepUpdate frequency

BastionChat ships an update every 4 months, PageMoss every 6 days. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

Scorecard3 real differences ยท 3 level
BastionChat versus PageMoss: the parameters behind the verdict, then further details
ParameterBastionChatPageMoss
Price$4.99Free โ€” better
Update frequencyEvery 4 monthsEvery 6 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, Mac โ€” better
Requires iOS18.018.0
Further details โ€” not scored
Size79 MB56 MB
Age rating4+4+
DeveloperFrederic Ayala Heinrichharim kang

In-app purchases

None

BastionChat

No 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

Questions

Is BastionChat free?
BastionChat costs $4.99, with no in-app purchases.
Is PageMoss free?
PageMoss is free to download, with in-app purchases available.
Do BastionChat or PageMoss have ads?
Neither BastionChat nor PageMoss shows ads.
Which is updated more often, BastionChat or PageMoss?
BastionChat ships an update every 4 months, and PageMoss every 6 days. Most recently, BastionChat was updated on October 23, 2026 and PageMoss on October 21, 2026.

Other comparisons