Comparison

Cedar Assistant vs Celestis

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

Head to head
About

Cedar Assistant

This AI workspace allows users to select and utilize various language models for different tasks. It supports on-device processing, self-hosted open-source models, and cloud-based AI systems. Users can fine-tune settings, attach files, generate images, and view web citations.

Highlights
  • Choose from multiple AI models
  • On-device processing with Apple Intelligence
  • Connect to self-hosted Ollama servers
  • Integrate with cloud models (Claude, OpenAI, Gemini)
  • Fine-tune conversation settings
  • Attach files and generate images
  • View web citations
Read full description

Cedar is a flexible AI workspace for iPhone and iPad that lets you choose the right model for the job. Use Apple Intelligence for on-device experiences, connect to your own Ollama server for self-hosted open-source models, or work with cloud models from Claude, OpenAI, and Gemini, all from one app. Switch between providers and models per conversation, fine-tune behavior with conversation-specific settings, attach files in supported workflows, generate images with supported OpenAI and Gemini models, and view web citations when supported responses include them. Cedar also brings Claude Managed Agents into the app, giving you a more powerful way to handle multi-step work and specialized assistants in one place. You stay in control of how each conversation is handled. Keep work on-device with Apple Intelligence, route it through your own Ollama setup, or use connected providers when you want access to their hosted models and tools. Cedar is designed to make those choices clear and practical, while securely storing API keys in Keychain. Whether you want private on-device help, self-hosted open-source models, or access to leading cloud AI systems, Cedar makes it easy to move between them without changing apps or workflows. It’s built for people who want one place to explore, compare, and work with modern AI on their own terms.

About

Celestis

This AI assistant empowers professionals with private, on-device intelligence for document analysis and knowledge retrieval. It offers offline capabilities, custom AI models built from your data, and supports various AI providers for ultimate flexibility and data sovereignty.

Highlights
  • On-device AI with Apple Intelligence
  • Offline AI capabilities
  • Private Capsules for custom AI models
  • Support for multiple AI providers
  • Near 100% accurate, sourceable answers
  • Document ingestion from various formats
Features
Read full description

Celestis: Private AI for Your Documents Your Knowledge. Your Data. Your AI. Celestis is an intelligent AI platform built for professionals who demand accuracy, privacy, and the freedom to work anywhere. Whether you're on a factory floor, aboard an aircraft, in a maintenance bay, or off the grid, Celestis brings full AI power to the edge and even completely offline. Celestis doesn't just chat. It understands your documents, learns from your knowledge, and delivers near 100% accurate, sourceable answers powered by an Adaptive-RAG engine. AI to the Edge: Offline. Anywhere. Always. Celestis Mobile supports on-device AI powered by Apple intelligence, letting you take your AI-powered knowledge completely offline. Get instant, accurate answers no matter where you are. - Maintenance technicians accessing service manuals in remote facilities - Factory workers querying procedures on the shop floor - Airline crews referencing documentation at 35,000 feet - Field engineers troubleshooting without a data connection Your knowledge travels with you. No Wi-Fi. No cell signal. No problem. Private Capsules: Your Data, Your Environment Capsules are the heart of Celestis. Each one is a self-contained, domain-specific AI built from your own documents. Private Capsules go further, running entirely in your environment for total data sovereignty. - Upload PDFs, Word docs, spreadsheets, presentations, CSVs, images, Markdown, and more - Combine Capsules into Pods for cross-domain AI with intelligent routing - Add custom instructions and guardrails per Capsule or Pod - Schedule automatic re-ingestion to keep your AI current Celestis never trains on your data. Your documents are never shared or retained beyond what you authorize. Choose Your AI Provider: Zero Vendor Lock-In Celestis ships ready to use with leading AI models, no API key required or bring your own. - Built-in: Celestis, ChatGPT, Claude, Grok - Open source: Any OpenAI-compatible endpoint - Local LLMs: Ollama and any locally-run model for complete privacy with zero cloud dependency Mix and match providers per Capsule. What Sets Celestis Apart - Near 100% Accuracy: Adaptive-RAG blends semantic and keyword search so every answer is precise and sourceable - On-device AI with Apple Intelligence - Powered by Apple Silicon in the cloud and green datacenters - Reader Mode: Read documents while asking questions in a seamless split view - Super AI: Augment Celestis with your Capsules to create a personalized AI that knows your domain - Simple Credit Pricing: No token math. Credits per action type, in the app or via API - Replicas Marketplace: Publish your Capsules, earn credits when others use your knowledge, creators keep 70% - Connectors: Source knowledge from Gmail, Google Drive, Notion, Slack, or any REST API Key Features - Chat with Celestis AI, always free to start - Domain-specific AI Capsules built from your documents - Offline AI Bundles for full AI access with no internet - Private Capsules running entirely in your environment - Audio Conversations and Text-to-Speech - Bring Your Own Model: ChatGPT, Claude, Grok, Ollama, and more - Capsule Collections with intelligent cross-domain routing - Reader Mode for side-by-side document reading and querying - Image generation and transformation - Live search and deep research - Connectors that connect to your MCP Servers, providing limitless data sources - Team collaboration with shared Capsule pools - Full API access for custom integrations - Analytics for Capsule performance, credit spend, and replica earnings Terms of Service: https://celestis.ai/terms-of-service Privacy Policy: https://celestis.ai/privacy-policy

Screenshots

Cedar Assistant4 screens
Celestis4 screens

Verdict

The call

The clearest difference is ratings volume: Celestis at 4 against Cedar Assistant's 1. On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Cedar Assistant against 5.0 for Celestis. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Cedar Assistant ships an update weekly, Celestis every 2 weeks. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

Scorecard1 real difference · 9 level
Cedar Assistant versus Celestis: the parameters behind the verdict, then further details
ParameterCedar AssistantCelestis
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Positive reviews—100.0% of reviews
Number of ratings14 — better
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.026.0
Further details — not scored
Size44 MB3.0 GB
Age rating4+12+
DeveloperMatthew WoodruffCelestis Ai Inc

Customer experience

Cedar Assistant

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Celestis

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Cedar Assistant

No in-app purchases

None

Celestis

No in-app purchases

Questions

Is Cedar Assistant free?
Cedar Assistant is free to download, with no in-app purchases.
Is Celestis free?
Celestis is free to download, with no in-app purchases.
Which has better reviews, Cedar Assistant or Celestis?
Cedar Assistant and Celestis are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do Cedar Assistant or Celestis have ads?
Neither Cedar Assistant nor Celestis shows ads.
Which is updated more often, Cedar Assistant or Celestis?
Cedar Assistant ships an update weekly, and Celestis every 2 weeks. Most recently, Cedar Assistant was updated on October 16, 2026 and Celestis on October 5, 2026.

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