Comparison

rag vs Synapse Notes

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

Head to head
About

rag

Engage in private AI conversations with locally-running language models. Upload documents like PDFs and DOCX to query them with AI, and visualize your document embeddings in a 3D atlas. Choose from various AI providers and models optimized for your device's performance.

Highlights
  • 100% offline AI chat
  • Document RAG with PDF/DOCX
  • Multiple AI model providers
  • 3D embedding visualization
  • Real-time device monitoring
  • Conversation history with search
Features
Read full description

RAG Bot — Private AI on Your Device Have natural conversations with locally-running large language models. Your chats stay on your device with full conversation history and search. Your Documents, AI-Powered Upload PDFs or DOCX files. RAG Bot generates embeddings so you can chat with your documents using retrieval-augmented generation. Visualize your document embeddings in an interactive 3D atlas. Choose Your Model Browse and download from three AI providers (Cactus, ExecuTorch, llama.rn). Filter by type (LLM or embedding), size, capabilities like vision and tool calling — find the right model for your hardware. Built for Performance Real-time device monitoring shows memory and storage usage so you always know what your device can handle. Optimized for Apple Silicon with multiple inference backends. Key Features 100% offline — no internet required after model download Multiple model providers and quantization options Document RAG with PDF, DOCX support Conversation history with full search Vision and tool-calling capable models Real-time device resource monitoring 3D embedding visualization

About

Synapse Notes

Features
Read full description

Synaps Notes is a private, on-device note app built for local AI. Write and organize notes directly on your iPhone. Chat with your own notes and documents using local AI models. Import PDFs, images, and text files with OCR support. Keep your data on-device by default, with optional Google Drive backup. No account is required to use the core features

Screenshots

rag4 screens
Synapse Notes4 screens

Verdict

The call

rag and Synapse Notes are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
rag versus Synapse Notes: the parameters behind the verdict, then further details
ParameterragSynapse Notes
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size79 MB8 MB
Age rating4+4+
DeveloperKyle EssenmacherCan Ahmet Ozguven

In-app purchases

None

rag

No in-app purchases

None

Synapse Notes

No in-app purchases

Questions

Is rag free?
rag is free to download, with no in-app purchases.
Is Synapse Notes free?
Synapse Notes is free to download, with no in-app purchases.
Do rag or Synapse Notes have ads?
Neither rag nor Synapse Notes shows ads.

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