ChatMore lets you choose between individual GPT models on your iPhone. Its listing names GPT-5 alongside Gemini, Grok, Claude and DeepSeek. Use a model to draft a reply, explain a passage or turn loose notes into a checklist, then refine the answer for your task.

This guide shows how to start with GPT chat in ChatMore, repeat the same prompt with another GPT model, and choose a finished reply to refine.

Start with a free download, then check included access

Yes, ChatGPT has a free plan on iPhone. For GPT-powered help in ChatMore, the app is free to download and offers in-app purchases. A free download and the model access included in your offer are different things.

Before you start, see which GPT and other model options ChatMore makes available to you. Read the included allowance and any trial or subscription terms before confirming a purchase.

Explore ChatMore's iPhone app and workflows for an overview of what you can do.

Three things to check in ChatMore

Download
ChatMore costs nothing to install from the App Store.
Access
See which GPT and other model options your current offer includes.
Optional purchase
Read the price, billing period and included access before confirming.

See what a useful first reply can look like

Start with a writing task in ChatMore whose result you can check in a few seconds. This sample confirms a video call using only the supplied facts.

Choose an available GPT option and paste the matching prompt. Your wording may differ from this sample; check the recipient, date and time zone before sending it.

Need a reply for a different situation? The iPhone email-reply guide includes prompts for follow-ups, polite declines and requests for clarification.

A reply to refine in ChatMore

Sample reply

Reply
Hi Alex, Thursday at 2 pm works for me. Please send the video-call link when you have it. I look forward to speaking with you.
Check before sending
Confirm the recipient, Thursday's date, the time zone and whether you need to add a sign-off.
Copy this prompt for ChatMore

Write a friendly reply under 70 words to Alex. Confirm that Thursday at 2 pm works for a video call and ask Alex to send the call link. Use only those facts. Do not add a reason for the meeting, a company name or a promise about the outcome.

Choose between individual GPT models in ChatMore

Start with an available GPT model in ChatMore, then repeat the reply prompt with another GPT model you can select. You can also explore the other model families offered in the app.

Keep the prompt, supplied facts and word limit unchanged when comparing replies. Check whether each answer confirms the time, asks for the call link and avoids adding details you did not provide.

Keep the wording you prefer and ask for one focused revision if needed. For a warmer tone, keep the facts and word limit fixed. Copy the checked reply into Mail or your messaging app when it is ready.

For more starting points, browse prompts you can reuse in ChatMore.

  • Supply only the facts the reply needs: recipient, day, time and request.
  • Give a length and tone, such as friendly and under 70 words.
  • Ask for one revision at a time so you can see what changed.
  • Check names, dates and commitments before copying the result.

Match the offer to the task you want to finish

Use ChatMore for writing, image generation, photo transformation or web search. For a writing task, model choice gives you a way to explore different wording from the same brief. Pick the workflow that matches the result you want.

If the app shows a limit or asks you to choose a plan, read that notice before continuing. Decide whether the included access covers what you need, rather than assuming a free download includes every feature.

Use the guide to checking AI answers when a reply includes facts, calculations or citations. For visual tasks, start with the iPhone image-generation guide.

  • For a rewrite, paste the passage and say what to change.
  • For a checklist, supply the notes and ask for owners or dates only when the notes include them.
  • For an image, settle on the subject and composition before making another version.
  • For a current fact, check the answer against its sources before relying on it.

What about “ChatGPT 4 free” or “ChatGPT 5 free”?

Those searches often mean you want a particular GPT model on your phone. ChatMore supports individual GPT model choices, and its listing names GPT-5. Use the options actually shown in the app rather than relying on a version name in an old headline.

If you need a specific GPT version, use the individual model name shown in ChatMore when you choose it. Model availability and the allowance included in your offer are separate, so check both before starting a longer task.

Keep the next task small enough to check

Once you have a reply you like, try one nearby task in ChatMore with your chosen model. Turn meeting notes into a checklist, explain a difficult paragraph or rewrite a message for a different tone.

The prompts below work from information you provide. Remove private details that are not needed, keep the request specific and review the result before sharing it.

For writing situations beyond a meeting reply, use prompts for follow-ups, polite declines and clarification.

About this guide

Published by Clara for ChatMore. ChatMore's app listing was checked on October 14, 2026. Product information also draws on its published iPhone workflows. Plan details can change, so check the current in-app offer before choosing a subscription.

The reply is an original sample showing the requested format and facts. Use it as a starting point for your own task, then check the answer you receive.

Prompts to try

Make a checklist in ChatMore

Turn these notes into a checklist with no more than six items: [paste notes]. Use only the supplied information. If an action has no date or owner, mark it as not specified rather than guessing.

Explain a passage with your chosen GPT model

Explain this passage in plain language in under 120 words: [paste passage]. Give one example that follows the passage, then identify any term that needs more context. Do not add facts that the passage does not support.

Warm up your reply

Revise this reply to sound warmer while preserving every supplied fact. Keep it under 70 words. Do not add reasons, commitments or personal details: [paste reply].

Quick checklist

  • Choose an available GPT or other model option in ChatMore and check included access.
  • Distinguish the free download from any trial, subscription or usage allowance.
  • Start with one task whose result you can check yourself.
  • Use the matching prompt, compare another available model if useful, then ask for one specific revision.
  • Read the billing period and purchase terms before subscribing.
  • Review facts and remove private details before sharing a result.

Choose a GPT model in ChatMore.

Download ChatMore on iPhone, choose an available GPT model and paste the reply prompt. Try another model if useful, then refine the wording and check the facts before sending.

Download ChatMore

Common questions

Is ChatGPT free on iPhone?

Yes, ChatGPT has a free plan on iPhone. For GPT-powered chat in ChatMore, the app is free to download with in-app purchases. ChatMore has its own offer, so check the models, features and allowance available inside the app.

Which AI models can I use in ChatMore on iPhone?

You can choose between individual GPT models in ChatMore. Its official listing names GPT-5 alongside Gemini, Grok, Claude and DeepSeek. Use the options shown in the app for a specific task such as drafting a reply, explaining a passage or making a checklist.

Can I compare individual GPT models in ChatMore?

Yes. Reuse the same prompt with another GPT model available in ChatMore, keep the facts and word limit fixed, and compare the replies before choosing wording to refine. The sample in this guide is a starting point, not a captured model comparison.

Is ChatMore the official ChatGPT app?

No. ChatMore is an independent app published by aipoweredapps fz-llc. It offers GPT chat through its own app and terms, separate from OpenAI's ChatGPT product.

Sources and product details

ChatMore publishes this guide. Product features, availability, limits, and prices can change; consult the current official information before choosing a plan.