# CoModel: AI Models & Prompts — Prompt Optimizer & Chat

> Prompt Optimizer & Chat (iPhone/iPad app by 蕴杰 戚.)

- Source: https://appshunter.io/ios/app/comodel-ai-models-and-prompts/id6781720906 (this page in markdown: same URL + `.md`)
- Developer: [蕴杰 戚](https://appshunter.io/developer/6780715480)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 320 MB
- Languages: American English, Arabic, French (France), German (Germany), Japanese, Korean, Russian, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-07-14
- Data updated: 2026-10-16

## What is CoModel?

COMPARE AI MODELS WITH YOUR OWN API KEYS

CoModel is a BYOK AI model comparison workspace and API client for people who already use model APIs. Send one prompt to selected models, keep each conversation separate, and compare answer quality, response time, token usage, cache usage, context limits, and estimated cost before choosing what fits your task.

BRING YOUR OWN MODEL ACCESS

CoModel does not include model credits or API access. You need valid API keys from the providers you choose. Provider API charges are separate from any CoModel subscription.

ANALYZE IMAGES, PDFS, AND DOCUMENTS

Add photos, screenshots, PDFs, text files, JSON, CSV, DOCX, PPTX, or XLSX files for compatible models. Preview attachments before sending, then ask supported models questions about their content.

Attachment support varies by model, file format, provider API, and verified connection capabilities. Unsupported models receive only the text question and are clearly identified.

COMPARE ANSWERS, USAGE, AND COST

• Ask multiple AI models the same question
• Review each response in a separate model tab
• Continue conversations with independent per-model context
• Track tokens, requests, cache usage, response time, and estimated cost
• Set model budgets and manage context limits
• Review usage statistics by model, currency, and date range
• Search history with text, hybrid, or on-device semantic search
• Enable optional web search with your own configured search key
• Import and export model configurations with Pro

Use CoModel to evaluate models for coding, research, writing, study, document review, summaries, product work, and everyday analysis.

LOCAL-FIRST DATA BOUNDARY

API keys are kept in your device's secure storage. Model settings, conversations, usage records, search indexes, and semantic vectors remain on your device by default.

Prompts, context, and attachments are sent directly from your device to the model providers you configure. CoModel does not proxy model requests through its own server.

FREE AND PRO

Free lets you compare up to 2 models. Pro supports up to 6 models and unlocks expanded history, custom statistics ranges, model configuration transfer, and additional advanced features.

AI-generated content may be inaccurate or incomplete. Verify important information before relying on it.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| CoModel | $2.99 | per month |
| CoModel | $7.99 | per 3 months |


## Is CoModel safe?

Not enough ratings yet to assess CoModel.

## Is CoModel legit?

CoModel: AI Models & Prompts has limited verification signals. The AppsHunter Legitimacy Score for CoModel is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.2.0 — 2026-10-01

• History folders: create folders and pin important questions and folders.
• Drafts in the question and follow-up boxes are saved for 3 days, so switching pages or reopening the app is safer.
• Added Arabic, Portuguese, Indonesian, Thai, and Vietnamese.
• Localized Terms of Use and Privacy Policy.

### 1.1.0 — 2026-09-12

• Prompt optimization on every question and follow-up: refine your prompt by meaning, then undo or reuse it.
• Model list updated: each provider's newest models are now available.
• Adapted for launch in China mainland, with updated provider support.

### 1.0.1 — 2026-08-12

• Add images from your Photo Library or camera
• Select and preview PDFs, text files, and Office documents
• Ask supported AI models questions about compatible attachments
• See clear notices when a model or file format is not supported
• Fixed the App Store link in Settings so it opens the correct CoModel product page

Attachment availability varies by model, file format, provider API, and verified connection capabilities.

### 1.0.0 — 2026-07-14

No release notes.

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## More apps by 蕴杰 戚

- [ScanLingo: Book OCR Vocabulary](https://appshunter.io/ios/app/scanlingo-book-ocr-vocabulary/id6790100763)

All apps by 蕴杰 戚: https://appshunter.io/developer/6780715480

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*