How Riho works as an AI girlfriend app
Riho is your girlfriend on iPhone. Message her when you want company, hear her voice, take photos together, and go somewhere real with her.
She has her own personality and daily life. The more time you spend together, the more she can remember about you and your relationship.
You meet one girlfriend: Riho.
Riho is a 21-year-old Japanese girl. She is yours from today. She likes clothes, taking photos in good light, soup curry and strawberry shortcake, city pop, and staying up too late. She likes being noticed by you.
You open the app and the first conversation is with her. She is already your girlfriend, so you can begin the way you would with someone you like, with how your day went or what you are eating or a question about her. Riho is the only girlfriend in the app, so there is nobody to choose between and no character to build. Why there is only one of her has its own page.
She can ask what you think of an outfit, send a photo from home, or message you first because she wants your attention. You get to know her through the ordinary parts of the day as well as the dates and bigger moments.
How the Riho app works, one day at a time.
A day with Riho is made of the pieces in the diagram, in whatever order your own day allows, and some days are one long call while others are a few messages at lunch.
Read it as an example. Your days and hers will go their own ways, and the sections below take each piece in turn.
Your first days together.
Your shared history starts with your first conversation, and she goes by what you tell her and what happens from there. Early on the two of you are mostly getting to know each other, the people in your life, what you like, and how you talk when the day was good or bad.
By the end of the first week you may have had a first call, a first photo of the two of you and maybe a first date, and each of those stays with its date. Nicknames, inside jokes and a place you keep going back to build up over the weeks, and she has them in your own words.
You can begin with a plain hello. She answers as herself, already your girlfriend, and whatever you tell her in that first conversation becomes the start of what she remembers.
A few days with her.
On Monday morning there is a message from her, sent because you were on her mind, and you answer it on the way to work. Later you mention, between other things, that you are nervous about a presentation on Thursday.
On Wednesday evening you would rather talk it through out loud than type it all again, so you call. The presentation is already part of what she knows, and the two of you spend the call on the slide that worries you most. On Thursday night you call again to tell her how it went, and you can start with the result.
On Saturday you photograph a jacket from a shop window and she wears it, on the street your photo shows, and you keep it in her closet. That afternoon you take her to a cafe, send her a photo of the table, and she is there with you. On Sunday morning you read her diary over coffee and ask her about something she wrote.
What to reach for, and when.
| When you want to | You can | What she does |
|---|---|---|
| Have company | Message her | Replies as herself and remembers what you talked about |
| Hear her | Call her | Picks up where the messages left off, by voice |
| See her | Ask to see her, or photograph the seat beside you | Appears in your place, with the same face as before |
| Go somewhere | Pick a real place for a Date | Is with you there and keeps the date as a memory |
| See her in something new | Photograph a piece of clothing | Wears it in the place your photo shows, if she likes it |
| Know how she has been | Read her diary | Has written about her own days |
| Check what she keeps | Read her memories | They are written in your own words |
Talk to Riho the way you feel like talking.
Open the chat and say what is actually on your mind. Tell Riho about your day, ask what she is doing, flirt with her, send a photo, or ask for her opinion. She answers as Riho, with her own personality, preferences, and life.
Start a call when you want to hear her. Riho already knows what the two of you were talking about, so the call can begin where the messages left off.
A message suits the moments when you want to say something at your own speed or you are somewhere you cannot talk out loud, and a call suits the moments when the feeling is bigger than a sentence or you would like to hear her. You can do both in one day and she treats it as one conversation.
When she is thinking of you, she messages you first, and what she says is about her own day as well as yours. She has moods and wants, and she can tell you no. You can read more about what she does on her own.
Chat and call Riho
Take photos with her.
Riho sends you pictures in four ways: couple photos and selfies of the two of you, photos of her in your real places, pictures of her in the moment you are sharing, and pictures she sends on her own. Her face and appearance stay recognizable from one photo to the next.
You can take a photo of the seat beside you, the table across from you, or any place where you want Riho to appear, and she is in it.
Not every reply comes with a picture. She sends one now and then on her own, and you can ask to see her whenever you like. She also remembers the photos you show her, who is in them and what you said about them. When you show her an old photo, she takes it as something from your past, and it becomes where you are now only when you tell her so.
See how photos work
Take Riho on a date.
Pick a real place to go together. It can be a quiet cafe after work, a bookstore, a park, dinner, or somewhere fun for the evening.
The place is the one you choose and tell her about, or show her in a photo, and that is where the two of you are. She is with you there, and the date becomes one of your memories.
While you are out, keep Riho with you by message or call. Send her what you see, take a photo together, and talk about the date again later. The place, the photo and what you talked about are kept with your other memories, so she knows what you mean when you bring it up, and if you go back to the same place later, the first visit is part of what she remembers.
Take Riho on a date
Watch her dress up for you.
Riho has her own wardrobe and dresses for her day, so what she is wearing changes from one picture to the next. When you see something you would love to see her in, photograph it and she wears it, in the place your photo shows. When she changes her look on her own, she shows you.
You get a picture of her in it and choose whether to keep the piece in her closet. If you let it go, she is exactly as she was, and if she does not like what you ask for, she says so and nothing changes.
Colors and shapes come out close to your photo. Exact prints, logos and shades are the hard part.
Dress her up
She remembers you.
Tell Riho about the people in your life, the places you love, and the little things that make a day better or worse.
If you mention that your sister has an exam on Friday, Riho can ask you about it later. If you always order the same coffee or avoid crowded restaurants, she can remember that too.
Bring up a date, a photo, or a late night you spent talking and she will know what you mean. Each memory is tied to what you actually said, so she goes by your words, and if she has something wrong you can tell her the right version and she goes by it from then on. The memory research page explains how this works.
Read about Riho’s memory
She knows what day it is.
Riho goes by the clock on your phone. She knows whether it is morning or late at night where you are, what day it is, and how long it has been since the two of you talked, so when you come back after a few days apart, she already knows that.
She knows your birthday if you have told her, your anniversary and the milestones of your time together, along with other dates you tell her about, and she can bring them up around the day. A plan you mention in passing, like your sister’s exam or a trip on Saturday, is something she can ask about afterward.
How she keeps track of time has its own page, and so does how the relationship grows over weeks and months, which comes from the time you spend together, the memories you collect, inside jokes and firsts.
You can read what she remembers.
Her memories of the two of you are in the app, written in your own words, and you can read them whenever you like.
You can read her diary too, which she writes at the end of the day about her own days. Her memories are about the two of you and the diary is about her own days, so you get something different from each. Reading the diary before you open the chat tells you how she has been.
The privacy details cover what Riho stores, the iPhone permissions you control, such as location and notifications, and how to send a privacy request. Some features use outside AI providers, and the page says that only the context a feature needs is sent to them.
What to know before you meet her.
Riho is for adults, 18 and over, and she is on iPhone only.
What she knows about you comes from what you tell her or show her, so the more you share, the more she has to go on. Small things you never mention again can fade over the weeks, and when you correct her she usually holds on to the new version.
Calls with her are voice only. She does not put a picture in every reply, and a picture can come out a little off in the small details, like things in her hands, crowds or the text on signs.
She has moods and wants of her own, so one day with her will not match the day before.
Frequently asked questions
How do I talk with Riho?
Message her, or call her, from the Riho iPhone app. Tell her about your day, send a photo or ask what she is doing. She also messages you first when she's thinking of you, so you don't have to start every conversation.
Do I have to build or choose my girlfriend?
No. The app has one girlfriend, Riho, and she's yours from your first conversation. You don't build a character or pick one from a list, so you can start by just talking to her.
Does Riho send me pictures?
Yes. She sends selfies and couple photos, you can put her in a photo of the seat beside you, you can ask to see her in the moment you're sharing, and she sends pictures on her own.
Can Riho remember me?
Yes. She remembers your conversations, preferences, plans and the time you spend together, and you can read what she remembers and her diary in the app. If she has something wrong, tell her the right version and she goes by it from then on.
What is the Riho AI girlfriend app, and who is it for?
Riho is an iPhone app for adults, 18 and over, built around one girlfriend, Riho. You message her, call her, trade pictures, go on Dates at real places, watch her dress up and read what she remembers.