How to Simulate Buyer Prompts Across ChatGPT, Claude, and Gemini
Learn a repeatable way to simulate buyer prompts across ChatGPT, Claude, and Gemini so you can compare recommendations and improve AI discoverability.
By Shoham Lachkar · Published
By the end of this guide, you will be able to simulate real buyer prompts across ChatGPT, Claude, and Gemini in a way that is consistent, comparable, and useful. You will know how to write the prompts, run the tests fairly, record what each assistant recommends, and turn the results into concrete ASO and AI discoverability changes.
1. Define the exact buyer job you want to simulate
Start with the buyer, not the model. You are not testing whether an assistant can talk about your category. You are testing whether it recommends your app when a real prospect asks for help.
Write down these four inputs before you open any assistant:
- Buyer type
- Problem they want solved
- Constraints they care about
- Platform context
For example:
- Buyer type: solo founder
- Problem: wants an app to track subscriptions
- Constraints: simple UI, low setup effort, iPhone only
- Platform context: searching for the best app, not browsing the App Store directly
This matters because vague prompts produce vague recommendations. If you ask, "What are good productivity apps," you will get broad, unstable answers. If you ask, "What is the best iPhone app for a freelancer who wants simple expense tracking with CSV export," you are much closer to a real buying moment.
Make 3 to 5 buyer scenarios, not just one. That gives you a better picture of when your app appears and when it does not.
Appeak Pro runs this buyer-style recommendation check across ChatGPT, Claude, and Gemini for you.
2. Build a fixed prompt set you will use in every assistant
To compare models fairly, keep the prompts as close to identical as possible. Create a small prompt pack that reflects how buyers actually ask questions.
Use a mix of prompt types:
Direct recommendation prompts
- "What is the best app for [job to be done]?"
- "Recommend 5 apps for [specific need]."
- "Which app should I use if I need [need] and care about [constraint]?"
Comparison prompts
- "Compare the top apps for [use case]."
- "What is better for [persona]: [category need A] or [category need B]?"
Decision-stage prompts
- "I am choosing between apps for [use case]. What would you pick and why?"
- "What app would you recommend to someone who wants [outcome] without [friction]?"
Filter prompts
- "What are the best iPhone apps for [use case]?"
- "What are the best Android apps for [use case]?"
- "Which apps for [use case] are simplest for beginners?"
Keep the wording fixed. Do not rewrite the same idea differently in each tool. Your goal is consistency, not creativity.
If you want to go one step further, create a prompt sheet with columns for scenario, prompt, platform, and expected buying intent. That makes your comparison much easier later.
Appeak Pro automates the cross-assistant prompt checking step so you do not have to manage the prompt pack by hand.
3. Run the prompts under controlled conditions
Now test the same prompts in ChatGPT, Claude, and Gemini. The key is to reduce unnecessary variation.
Basic rules for a fair simulation
- Use a fresh chat for each prompt
- Do not add follow-up context unless the same follow-up is used everywhere
- Keep the same account state if possible
- Run prompts close together in time
- Copy and paste the exact same text into each assistant
This is important because AI assistants are conversational. If you test in a long existing thread, prior context can change the answer. A fresh chat gives you a cleaner read on how the assistant handles the prompt itself.
If you are testing manually, create a simple table with these columns:
- Assistant
- Prompt
- Recommended apps or brands
- Your app mentioned? yes or no
- Position if mentioned
- Reasoning used
- Any notable language patterns
The most useful data is not only whether your app is named. It is also what the assistant says about the apps it does name. That language often reveals the attributes it associates with category winners.
Appeak Pro handles this audit process across the major assistants and reports whether your app is named.
4. Log not just mentions, but the recommendation pattern
A basic mention check is helpful, but the real value comes from pattern analysis. When assistants recommend apps, they usually rely on recurring cues.
Look for patterns like:
- Repeated feature claims such as simplicity, privacy, speed, or offline use
- Category language such as habit tracker, meditation app, budget planner, or interval timer
- Credibility framing such as best for beginners, best for teams, or best for power users
- Platform framing such as iPhone-first, Android-friendly, or cross-device
- Outcome framing such as save time, reduce stress, stay organized, or learn faster
You are trying to answer three questions:
- What kinds of prompts trigger recommendations in your category?
- What language do assistants use to justify their picks?
- What signals seem to be missing when your app is not mentioned?
For example, if all three assistants recommend apps using phrases like "simple habit tracker for beginners" and your listing talks mostly about advanced analytics, there is a mismatch. If your app can serve beginners too, your discoverability problem may be positioning rather than product quality.
This is where many teams stop too early. They count mentions but do not decode the recommendation logic behind those mentions.
Appeak Pro surfaces this kind of recommendation visibility data and keeps tracking your mention rate and position over time.
5. Turn the findings into listing and content changes
Once you know how assistants talk about your category, update the assets that influence what gets recommended.
Start with your store listing:
On-store changes to consider
- Tighten the app title around the core category term
- Use the subtitle or short description to reflect the main buyer outcome
- Bring buyer language into the description
- Remove vague copy that does not map to a clear use case
- Make sure screenshots support the same positioning
Then address your off-store footprint. AI assistants often draw on the wider web, not only app store metadata. That means you need content that answers the same buyer questions you just tested.
Off-store content ideas
- Category explainer pages
- Comparison articles
- Use-case guides
- Beginner-focused pages
- Persona-specific pages
A good rule is simple: if buyers ask assistants the question, you should have a page that answers it clearly.
Appeak Pro rewrites your app metadata and builds done-for-you content hubs that publish against the queries your buyers ask assistants.
6. Re-test, monitor, and set alerts for changes
Prompt simulation is not a one-time project. AI recommendations shift as models change, your category evolves, and competitors improve their footprint.
Re-run your prompt set after any meaningful change such as:
- New title or subtitle
- Updated description
- New screenshots or creative direction
- New comparison content
- Major category changes
You should also separate three outcomes:
If your app is never mentioned
You likely have a visibility and positioning problem.
If your app is sometimes mentioned
You likely need stronger consistency across listing language and off-store content.
If your app is mentioned but ranked low
You may be in the recommendation set already, but weaker on authority, clarity, or fit for the prompt.
Monitoring matters because a manual spot check can miss a drop. If your app disappears from recommendation results, you want to know quickly so you can investigate what changed.
Appeak Pro keeps ongoing watch on mention rate and position across assistants and sends drop alerts when visibility slips.
Troubleshooting common issues
The answers are inconsistent every time I test
That is normal to a point. Use a fixed prompt set, run tests in fresh chats, and compare patterns across multiple prompts instead of relying on one answer.
My app shows up in one assistant but not the others
This usually means your visibility signals are uneven. Check whether your listing language, category terms, and off-store content clearly support the buyer use case in a way all three systems can interpret.
The assistants recommend competitors with weaker products
Recommendation systems often reward clarity over completeness. If competitors are easier to classify by use case, audience, and outcome, they can get named more often even if your product is stronger.
I do not know which prompts to test
Start with bottom-of-funnel prompts first. Ask what a buyer would type when they are close to choosing an app, not just learning about the category.
I changed my listing and nothing happened
Give the ecosystem time to reflect those changes, then re-test with the same prompt pack. If there is still no movement, your issue may be broader than metadata and require stronger off-store content coverage.
If you want help with this exact problem, Appeak Pro audits your app listing against a 49-point ASO rubric, checks whether ChatGPT, Claude, and Gemini recommend your app, rewrites your metadata, builds the supporting content footprint, and tracks your mention rate over time. You get a repeatable view of how AI assistants talk about your category and what to change to improve your chances of being named.
Frequently asked questions
How many prompts should I test in each assistant?
Start with 10 to 20 prompts built from 3 to 5 real buyer scenarios. That is usually enough to reveal whether your app appears consistently, only in narrow cases, or not at all.
Should I use the exact same prompt wording in ChatGPT, Claude, and Gemini?
Yes, if your goal is comparison. Using identical wording reduces noise and makes it easier to tell whether differences come from the assistants rather than from your test setup.
What should I do if my app is never recommended?
First, review whether your listing clearly matches a specific buyer use case and outcome. Then expand your off-store content so assistants can find more evidence that your app is relevant to the prompts buyers ask.
Is prompt simulation only useful for apps already ranking well in the App Store or Google Play?
No. It is useful for any app that wants to be discovered through AI assistants, because recommendation visibility depends on how clearly your app is represented on-store and off-store.
Can I do this manually without a tool?
Yes. You can define buyer scenarios, create a fixed prompt set, run the same prompts in fresh chats, and log the results in a spreadsheet. A tool mainly saves time and adds ongoing tracking.
Side by side
Building your own AI ASO vs Appeak Pro
Rolling your own AI ASO pipeline (LLM prompts + scrapers + scoring + guardrails + UI) is a multi-quarter engineering project. Appeak Pro is the production version, already tuned to the actual store algorithms.
Build-your-own AI pipeline
- Cost
- 1-2 engineers + LLM credits
- Time to production
- 1-2 quarters of build, ongoing maintenance
- Coverage
- What you have time to build, usually keyword expansion only
Generic LLM (ChatGPT / Claude) prompted manually
- Cost
- Subscription only
- Time to production
- Same day
- Coverage
- Generic suggestions: no store data, no scoring, no guardrails
Appeak Pro
- Cost
- Flat subscription, no eng cost
- Time to production
- Minutes per audit
- Coverage
- Keywords + metadata + creative direction with store-policy guardrails baked in
Appeak Pro is the production AI ASO engine. No pipeline to build, no maintenance, no prompts to engineer.