The Best AI Texting Assistant Apps for iPhone in 2026: Replies, Tone and Rizz
Short answer: for dating conversations, RIZZ is the most popular dedicated app and reads screenshots of your chat and your match's bio. For changing the tone of something you already wrote, Apple Writing Tools is free on newer iPhones and Grammarly works on any iPhone. If you want one app for every kind of message (replying to a friend, saying no to your boss, fixing a dry text, writing a pick-up line), with a keyboard that works in every chat app, that is what TextAI is built for.
App Store ratings and update dates are from October 2, 2026. We make TextAI, so weigh what we say about it accordingly; everything about the other apps comes from their own App Store listings and support pages, linked below.
What a texting assistant needs to do
A grammar checker fixes what you wrote. A texting assistant helps with what to write. When we compared these apps, we looked for:
- Context. Can it read the whole conversation, ideally from a screenshot, or only one message you paste in?
- Where it works. In a keyboard inside iMessage, WhatsApp and Hinge, or only in its own app?
- Tone control. A fixed menu of tones, or anything you describe?
- Range. Dating only, or also work, family and awkward everyday messages?
- Cost of entry. Can you try it before paying?
The quick comparison
| App | Reads a screenshot | Works as a keyboard | Covers | Rating |
|---|---|---|---|---|
| RIZZ | Yes, plus match bios | No | Dating, some casual and formal chat | 4.8 (39.7K) |
| Plug AI | Yes | No | Dating | 4.6 (15.7K) |
| TextAI | Yes, from the share sheet | Yes, 28 tools | All messages, email, social posts | 4.6 (1.2K) |
| Grammarly | No | Yes | Correcting and rewriting your text | 4.7 (225K) |
| Wordtune | No | Yes | Rewording your text | 4.4 (987) |
| ChatGPT | Yes, as an image in chat | No | Anything you prompt | 4.8 (10.9M) |
| Apple Writing Tools | No | Built into iOS | Rewriting selected text | Built in |
1. RIZZ: the dedicated dating app
RIZZ is built for dating apps. Upload a screenshot of the conversation, or your match's bio, and it writes replies meant to keep the chat going. It also has a formal mode for networking messages, and it says it adapts to your style the more you use it.
Where it falls short: it is not a keyboard, so every reply means a trip out of the chat and back. Its focus is flirting; it is not the app for a message to your landlord.
Pick it if dating apps are the only place you need help.
2. Plug AI: dating replies, subscription first
Plug AI generates replies from a screenshot, writes opening lines, and has a chat for dating advice.
Where it falls short: the listing says a subscription is required to use it. As of October 2026, the last App Store update was in August 2024. Like RIZZ, it is a separate app rather than a keyboard.
Pick it if you want a second dating-only option and are ready to subscribe.
3. TextAI: one app for every kind of message
TextAI has 40 texting tools among its 228, and a keyboard that puts the most used ones in any chat app. Share a screenshot of the conversation with Reply with TextAI and it drafts a reply from the whole thread; add a line like "agree but push it to Saturday" and it follows it. Before you answer, Decode a message, Vibe check, Is this flirting? and Red or green flag tell you how a message reads. For dating there are Add rizz, Write a pick-up line, Conversation starter from profile and Dating profile bio. For the rest of life there are Apology text, Turn down a date, Boundary setting text, Fix a dry text, Split bill message and more. Change tone takes any tone you describe rather than a fixed list.
Where it falls short: iPhone only, iOS 17 or later. It has far fewer ratings than RIZZ or Grammarly. The free download includes a few generations; regular use needs Pro. It drafts when you ask; it does not watch your typing and underline mistakes.
Pick it if you need help with more than dating, and want it inside the keyboard. Here is the full tool list.
4. Grammarly: tone fixes for what you already wrote
Grammarly's keyboard works in every app, detects the tone of your draft, and can rewrite a whole message for length, fluency or tone.
Where it falls short: tone transformations are Premium. It works on your draft, so it will not tell you what to say back to a message you received.
Pick it if you know what to say and want it to land better, especially at work.
5. Wordtune: rewording with tone and length controls
Wordtune suggests other ways to phrase a word, phrase or sentence, with tone and length settings, from its keyboard.
Where it falls short: it rewrites your text rather than reading theirs. As of October 2026 it was last updated in May 2026, and it has under a thousand ratings.
Pick it if your message is right but sounds stiff.
6. ChatGPT: flexible, but you do the work
The ChatGPT app can read a screenshot you upload and draft any reply you ask for, then revise it as often as you like.
Where it falls short: there is no keyboard. You leave the chat, upload, write a prompt, wait, copy and go back. It needs iOS 18. Without a careful prompt, replies tend to come out longer and more formal than a text should be.
Pick it if the message is complicated and you want to talk it through first.
7. Apple Writing Tools: free tone changes on newer iPhones
Writing Tools rewrites selected text as Friendly, Professional or Concise, proofreads it, and summarizes it, in most apps, at no extra cost.
Where it falls short: it needs an Apple Intelligence iPhone (iPhone 15 Pro, iPhone 15 Pro Max, or an iPhone 16 model or later). It has three tones and no way to draft a reply to someone else's message.
Pick it if you have a supported iPhone and only need to soften or tighten your own text.
Which one fits your situation?
| You want to… | Use |
|---|---|
| Answer a match on Hinge or Tinder | RIZZ, or TextAI's Add rizz and Reply tools |
| Reply to a group chat or a friend | TextAI (screenshot reply or keyboard) |
| Say no to your boss without sounding rude | TextAI's Change tone, or Grammarly on your draft |
| Make a work email less blunt | Grammarly, or Apple Writing Tools on a supported iPhone |
| Figure out what a message meant | TextAI's Decode a message and Vibe check, or ChatGPT |
| Rewrite a sentence that sounds off | Wordtune |
Getting a good reply from any of them
- Give it the whole conversation. A screenshot beats one pasted line; see how to reply from a screenshot.
- Say what you want in one line. "Yes, but not this week" is all it takes.
- Describe how you text. Short, lowercase, emoji or not.
- Edit before you send. Cut the first sentence if it explains why you are writing; real texts rarely do.
FAQ
Is there an app that writes a reply from a screenshot of a chat?
Yes. RIZZ, Plug AI and TextAI all read a screenshot of the conversation and suggest a reply. In TextAI you can share the screenshot straight from the iPhone share sheet with Reply with TextAI. ChatGPT also accepts screenshots, but you have to write the prompt and copy the answer back yourself.
What app changes the tone of a message before I send it?
Apple Writing Tools rewrites selected text as Friendly, Professional or Concise on Apple Intelligence iPhones. Grammarly and Wordtune rewrite for tone from their keyboards, with Grammarly's tone transformations on Premium. TextAI's Change tone tool takes any tone you describe in your own words, like 'firm but not angry'.
What is the best rizz app?
RIZZ is the most-rated dedicated app, with 4.8 stars from about 40,000 ratings on the App Store as of October 2026. It reads screenshots and match bios. Plug AI does the same but requires a subscription to use and has not been updated since August 2024. TextAI has rizz tools (Add rizz, Write a pick-up line, Dating profile bio) alongside tools for every other kind of message.
Can AI reply to my texts automatically?
Not on iPhone. iOS does not let third-party apps read or send your iMessages on their own. Every app here drafts a reply that you review and send yourself, which is also the safer way to use it.
Will people know my reply was written by AI?
They might if you send the first draft as it is. Tell the app how you actually text, for example 'short, lowercase, no emoji', and cut anything you would not say out loud. Our guide to making AI text sound human covers the usual giveaways.