DeepChat vs Promptastic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeepChat
This AI assistant app integrates over 100 leading AI models for chat, writing, coding, translation, and visual understanding. It offers web-connected search, thought process transparency, and organized conversations with automatic sync across devices.
- 100 AI models in one app
- Web-connected search
- Visual understanding
- Thought process transparency
- Organized conversations
- Automatic sync across devices
- Chat with PDFs
Read full descriptionHide full description
DeepChat is your all-in-one AI assistant and creative partner, unifying chat, writing, coding, translation, search, and multimodal understanding. 100 models in one app with a consistent experience and content management. With industry-leading model capabilities and online retrieval across all models, you get answers and content that are faster, more accurate, and trustworthy. ## Core Features - One app, 100 models: Use 100 models in a single app and switch on demand for general, reasoning, coding, vision, and more. - Web-connected search: Every model can browse and retrieve authoritative, up-to-date information, aggregating multiple sources to greatly improve accuracy and timeliness. - Visual understanding: Upload images for visual Q&A, chart and flowchart analysis, and understanding screenshots or documents with key-point extraction. - Thought process transparency: Clearly presents reasoning paths and evidence for answers for more control and trust. - Simple and effortless: Powerful capabilities with a minimalist interface. Works great out of the box. - Organized conversations: Edit, reorder, and pin chats so important content is always at hand. - Automatic sync: We value your privacy and convenience. Real-time sync across devices keeps everything seamless. ## More Capabilities - Chat with PDFs and more: Extract key points, generate summaries and Q&A for faster study and work. - Preset or custom roles: One-tap switching for writing, coding, product, operations, and more. - Best-in-class speech synthesis: Natural, expressive voices for many use cases. - Forgetting divider: One tap to change topics and reset context to keep chats focused. - Voice input: Highly accurate speech-to-text to capture ideas anytime. - Markdown rendering: Better formatting for improved reading and sharing. - Token usage: Clear, detailed accounting of usage and costs. ## Use Cases - Learning and research: Information retrieval, reading comprehension, key point/exam point summaries, and note generation. - Writing and creation: Topic ideation, outlines, polishing, rewriting, and style transfer. - Programming and engineering: Code assistant, debugging hints, technical designs, and documentation. - Business and office: Emails, reports, proposals, meeting minutes, and action lists. - Multimodal understanding: Structured analysis and key-point extraction for screenshots, charts, and photos. ## Policies - Privacy Policy: https://deepchat.app/privacy - Terms of Service: https://deepchat.app/terms
Promptastic
This app helps you create and run custom AI prompts for various writing tasks. It offers a gallery of pre-made prompts, organization tools, and syncs across devices. Integrate AI into your workflows and automate content generation.
- Parametrized prompts
- Pre-made prompt gallery
- Folder organization
- Prompt history
- iCloud sync
- Share extension
- Shortcuts integration
Read full descriptionHide full description
Promptastic is a powerful and versatile app designed to streamline your writing process and unleash the potential of OpenAI's language models. With Promptastic, you can effortlessly create parametrized prompts and run them against multiple OpenAI APIs, including GPT-3, GPT-3.5 Turbo, and GPT-4. Whether you're a writer, a social media enthusiast, or a language lover, Promptastic will revolutionize the way you express yourself. Key Features: • Parametrized Prompts: Save time and avoid repetitive writing by creating customizable prompts for a wide range of tasks. Whether you're crafting emails, tweets, blog posts, answering questions, summarizing text, explaining complex concepts, or translating content, Promptastic has got you covered. • Pre-made Prompt Gallery: Explore a curated collection of pre-made prompts that cover various scenarios. Save these prompts and make changes to suit your specific needs. With Promptastic, inspiration is just a tap away. • Folder Organization: Keep your prompts organized and easily accessible by creating folders. Seamlessly categorize your prompts based on topic, project, or personal preference. Stay organized and boost your productivity. • Prompt History: Never lose track of your prompts and their results. Promptastic provides a comprehensive history feature that allows you to review past prompts and their corresponding outputs. • iCloud Sync: Enjoy prompt synchronization across all your devices using iCloud. Seamlessly switch between your iPhone and iPad, ensuring a consistent and efficient experience wherever you go. • Share Extension: Harness the power of Promptastic from any other application. The convenient share extension enables you to run prompts directly from other apps, eliminating the need for copy-pasting and enhancing your workflow. • Shortcuts Integration: Integrate AI into your shortcuts and automations with ease. Promptastic seamlessly integrates with Shortcuts, enabling you to effortlessly incorporate AI capabilities into your personalized shortcuts. Automate repetitive tasks and unlock new possibilities. Promptastic empowers you to harness the incredible potential of OpenAI's language models while saving you time and enhancing your writing experience. Unleash your creativity and effortlessly generate high-quality content across various domains. Upgrade your writing skills with Promptastic today! —————————— Terms of Use: https://getpromptastic.com/terms.html Privacy Policy: https://getpromptastic.com/privacypolicy.html
Screenshots
Verdict
The clearest difference is update cadence: DeepChat at every 4 days against Promptastic's every 3 months. DeepChat also leads on rating (3.9 vs 3.5) and review sentiment (65% vs 50%). On price, ads, in-app purchases and monetization model 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
Both are free to download. DeepChat sells 4 in-app purchases, starting at $4.99 per 7 days and Promptastic sells 4 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.
DeepChat holds the better App Store score, 3.9 against 3.5. That said, the two scores are not equally well evidenced: DeepChat has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 65% of DeepChat's written reviews are positive against 50% of Promptastic's.
DeepChat ships an update every 4 days, Promptastic every 3 months. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.
| Parameter | DeepChat | Promptastic |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (19 ratings) — better | 3.5 (2 ratings) |
| Positive reviews | 65.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 19 — better | 2 |
| Update frequency | Every 4 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 飞 杨 | Wessley Roche |
Customer experience
DeepChat
Promptastic
In-app purchases
DeepChat
- Premium$4.997 Days
- Premium$9.991 Month
- Premium$69.991 Year
- Compute Points Package$19.99
Promptastic
- Promptastic Pro7 Days trial$2.991 Year
- 1,000 Credits$0.99
- 10,000 Credits$7.99
- 100,000 Credits$49.99









