Openchat vs OneAI by SimX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Openchat
This app combines AI chat capabilities with image generation. It assists with writing, learning, and everyday queries, and can create or transform images from text prompts or existing photos. Access advanced AI models and refine results through conversational follow-ups.
- AI-powered chat for writing and learning
- Generate images from text prompts
- Transform photos with styles
- Voice input and file sharing
- Chat history search
- Rate AI responses
- Access to advanced AI models
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OpenChat brings AI chat and image creation together. Get help with writing, learning and everyday questions, or turn an idea or photo into something new with Imagine. IMAGINE: CREATE AND TRANSFORM • Create images from text prompts. • Transform your photos with ready-to-use styles. • Refine your result with follow-up instructions in chat. CHAT, WRITE AND LEARN • Ask questions, brainstorm ideas, draft messages and translate text. • Use voice input and share supported photos or files for help with their contents. • Find past conversations with chat history search. • Rate AI responses and add optional feedback. AI MODELS Access the GPT-6 model family and other AI models on supported plans and features. Availability varies by subscription, task and usage limits. Models may change as the service is updated. PRIVACY CHOICES Review and change your analytics and diagnostic reporting preferences in Settings. Requests are processed using external AI services as described in our Privacy Policy. AI responses can be inaccurate; check important information. OPENCHAT PRO Paid plans unlock additional capabilities and usage allowances. Features and limits vary by plan. See the in-app offer for the current price, billing period and any trial terms. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple Account. Manage or cancel your subscription in your App Store account settings. Privacy Policy: https://jarvisy.com/privacy-policy Terms of Service: https://jarvisy.com/terms-of-service
OneAI by SimX
This app aggregates responses from over 10 advanced AI models, allowing users to compare answers side-by-side. It streamlines the process of getting diverse AI insights for tasks like research, writing, or problem-solving, eliminating the need to switch between multiple AI applications.
- Access over 10 advanced AI models
- Compare AI responses side-by-side
- Eliminate app switching for AI queries
- Ask follow-up questions within a model
- Simple and easy-to-use interface
- Insights for school, work, and personal use
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Ever feel unsure about the answer your AI chatbot gives you? Maybe it sounds okay—but how can you be sure it's the best or even accurate? Have you found yourself switching between different AI apps, copying and pasting your question just to compare the answers? It's tiring, time-consuming, and often leaves you with more questions than answers. You start wondering: What if there’s a better answer out there? That’s why we created One AI—a simple, powerful app that brings together over 10 of the world’s most advanced AI chatbots in one place. Instead of being stuck with just one answer, One AI lets you ask your question once and instantly see how different AIs respond, all at the same time. You don’t have to jump between apps anymore. Everything you need is in one beautiful, easy-to-use interface. One AI connects you to a wide range of top-tier AI models, including ChatGPT (OpenAI), Gemini (Google), Qwen (Alibaba), DeepSeek, Step (Stepfun), GLM (Zhipu), Grok (xAI), Yi-Lightning (01.AI), Claude (Anthropic), Llama (Meta), ERNIE (Baidu), Doubao (Bytedance), Mixtral (Mistral), and Amazon Nova Pro (Amazon). Even a lot more is coming! Whether it's creativity, logic, speed, or precision, each model has its strengths—and now you can tap into all of them in one place. With One AI, you can quickly compare all the answers side by side. You’ll notice patterns—where the AIs agree, where they differ, and where one offers a unique take. Some models explain things clearly, others provide creative suggestions. One AI helps you see the full range of answers, so you can make better decisions and learn more effectively. COMING SOON: A smart new feature will read all the responses for you and show what most of them agree on. It also highlights the most original or different answer—so you can find useful insights quickly. Even if you’re short on time, you’ll still get the key ideas fast. One AI is great for school, work, or fun. If you’re writing an essay, studying for a test, doing research, solving a tough math problem, or exploring an idea, One AI gives you more input with less effort. It’s like having a panel of experts ready to help you, anytime. You can even go deeper with one AI model if you like its answer. Tap on it, ask follow-up questions, and continue the conversation. Whether you want more detail, simpler explanations, or different angles, One AI lets you stay in control. The app is designed to be simple and enjoyable. Whether you’re new to AI or already familiar, One AI makes it easy. The layout is clean and clear. You don’t need tech skills—just type your question and explore the answers. No matter who you are—a student, curious thinker, writer, or someone who loves new ideas—One AI helps you ask smarter questions and get better answers. You'll feel more confident and discover more when you see ideas from multiple angles. Instead of settling for one answer, see what different AIs have to say. Save time, think deeper, and get the full picture—all with a single question. **One AI – Ask Once, Get the Best Answers.** Privacy Policy and Terms of Service: https://bit.ly/One_AI
Screenshots
Verdict
The clearest difference is ads: OneAI by SimX at none against Openchat's shown. OneAI by SimX also leads on rating (5.0 vs 4.7). Openchat's advantage is ratings volume (4.6K vs 4) and update cadence (every 3 weeks vs every 2 months). On price, 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. Openchat sells 8 in-app purchases, starting at $6.99 per 7 days and OneAI by SimX sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
OneAI by SimX holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Openchat has 4.6K ratings behind it against 4, so its average is the more settled of the two.
Openchat ships an update every 3 weeks, OneAI by SimX every 2 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.
| Parameter | Openchat | OneAI by SimX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (4.6K ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 81.5% of reviews | — |
| Number of ratings | 4.6K — better | 4 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 112 MB | 131 MB |
| Age rating | 12+ | 12+ |
| Developer | JARVISY LTD | SimX |
Customer experience
Openchat
OneAI by SimX
Bugs and requests
Openchat
Reported bugs
2 issues- Incompatibility with older devices
- Charging for a free trial
Requested features
3 requests- Option to create documents
- More free messages or reduced reset time
- Dark mode option
OneAI by SimX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Openchat
- 3-day free trial3 Days trial$6.997 Days
- 3-day free trial3 Days trial$7.997 Days
- AI Chat Premium Monthly1 Month trial$19.991 Month
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- 3-day free trial3 Days trial$19.991 Month
- AI Chat Premium Monthly1 Month trial$29.991 Month
- Yearly Access$39.991 Year
- Yearly Access$49.991 Year
- Yearly Access$89.991 Year
OneAI by SimX
- Starter Boost$1.99
- Explorer Pack$9.99
- Power User Bundle$19.99
Show 1 moreShow fewer
- Ultimate Access$49.99









