We’ve all been there: you ask ChatGPT, Gemini, or Claude for something, and the response is generic, boring, or just misses the mark. The frustration is real.

The secret to getting spectacular results from artificial intelligence isn’t which model you use, but how you ask. This is called prompt engineering, and it’s the new must-have skill for any marketing professional. But mastering it takes time. What if you could skip the learning curve and instantly access expert-level results?

This is where OnlyPrompts comes in. In this review, we’ll tell you what it is, what its most powerful features are, and—most importantly—the fine print. You’ll discover if it’s the tool you truly need to speed up your daily work.

What Exactly is OnlyPrompts? An Expert Translator for Your AI

First things first: OnlyPrompts is not a new AI model like GPT or Claude. Nor is it one of those opaque “all-in-one” tools that generate content for you.

Its positioning is much smarter: it acts as an optimization and productivity layer that sits on top of the AIs you already know and use. Its value isn’t in generating an answer, but in giving you the perfect instruction so you can generate a much better answer.

Think of AI models as a powerful Formula 1 engine. OnlyPrompts isn’t the engine; it’s the expert driver who knows how to get the most out of it. It sells efficient and optimized access to AI, democratizing prompt engineering.

In essence, it gives you access to a massive library of over 150,000 tested “recipes” or prompts, ready to use for thousands of specific tasks.

The 3 Key Features That Will Supercharge Your Productivity

Beyond its concept, the true magic of OnlyPrompts is in how it saves you hours of work. These are its star features:

  1. The Ultimate Prompt Library: The heart of the tool is its gigantic database of over 150,000 ready-to-use prompts. These aren’t simple questions, but complex, structured instructions designed by experts. They are meticulously organized by industry, department (Marketing, SEO, Accounting), and professional role (Project Manager, Copywriter), allowing you to find the exact solution you need in seconds.
  2. The Multi-Model “Playground” (Its Crown Jewel): This is, without a doubt, its most powerful function. It lets you test the same prompt on different AI models (GPT-4o, Claude 3, Gemini, etc.) side-by-side and in real-time. No more dozens of open tabs. With a single click, you can see how Claude generates more creative text while GPT offers a more logical structure for the same request. This not only saves you an incredible amount of time but also teaches you, in practice, which AI is best for each type of task.
  3. Integrated Image Generator: The tool goes beyond text. It includes an image generator compatible with 19 different AI models and over 150 visual prompt templates. This is perfect for generating both the copy for your social media campaign and the accompanying images, all in one place.

The Fine Print: 3 Crucial Limitations You Need to Know

No tool is perfect, and honesty is key. Based on feedback from hundreds of users, here are the weak points you should weigh before deciding:

  1. It’s for Consumers, Not Creators: This is the most important and repeated criticism from the community. In its current state, you cannot create and save your own prompts from scratch. You can modify existing ones and save them, but you can’t use the platform as your personal prompt manager. One user even called this a “deal-breaker.” This defines its ideal user: it’s perfect if you’re looking for inspiration and high-quality templates to “consume and modify,” but it will fall short if you’re an advanced “creator” who wants to manage your own library.
  2. Your History Gets Wiped Every 3 Months: This is a fundamental limitation that changes how you use the tool. Your entire generation history is deleted after 90 days. This means OnlyPrompts is not a long-term archive or hard drive. You must think of it as a “workbench” or a “testing notebook.” The correct workflow is: experiment, generate, compare, and once you have a result you like, immediately export it to your own storage system (Google Drive, Notion, etc.).
  3. A Closed Ecosystem (For Now): If you’re looking to automate your workflows, here’s a roadblock. As of today, OnlyPrompts does not have a public API or integrate with tools like Zapier or Make. All information is moved by copying and pasting. This is one of its biggest weaknesses for power users, although its public roadmap already has community requests to add these connections.

Conclusion: Is OnlyPrompts for You?

OnlyPrompts positions itself brilliantly in the AI market, not as a competitor, but as a universal accelerator. Its value is undeniable for a very specific profile: marketing professionals, freelancers, agencies, and business owners who need to overcome the “blank page syndrome” and generate high-quality drafts in a fraction of the time.

If you are a “consumer” of prompts who values inspiration and efficiency, this tool will save you hundreds of hours. The lifetime deal (LTD) at its highest tier (Tier 3), with unlimited credits, transforms it from a simple utility into a key piece of infrastructure for your daily work.

Now it’s your turn to decide if it’s the accelerator your workflow needs. If the answer is yes, here is a 10% discount for your first purchase.

This post is also available in: Español