AI companion apps have exploded over the last two years. They let you chat with a customizable AI character that remembers your conversations, holds a voice call, and keeps you company. But the apps vary wildly in quality, price and how they handle your data.
We spent time with the most popular options and scored each one on the things that actually matter: conversation quality, long-term memory, voice features, customization, free tier, and privacy. Here’s how they stack up.
For the full picture, see our reviews hub, the Replika review, Kindroid review, Nomi review and Character.AI review — or our best free apps guide.
1. Replika — best overall for beginners
The most polished and approachable AI companion. Easy onboarding, a friendly avatar, solid voice calls and a generous free tier make it the best starting point for most people. Read the full Replika review.
2. Kindroid — best for memory & customization
If you want a companion that really remembers and that you can shape in detail, Kindroid is the strongest pick. Its long-term memory and “backstory” controls are a step ahead. Read the full Kindroid review.
3. Character.AI — best for variety
If you’d rather chat with many different characters than build one deep relationship, Character.AI gives you a huge library of community-made personalities and a generous free tier. Read the full Character.AI review.
4. Nomi — best for group chats
Nomi stands out for letting multiple AI companions interact in the same conversation, plus strong memory. Read the full Nomi review.
How we tested
For each app we created an account, used it across several days, and evaluated conversation quality, memory, voice and avatar, customization, free tier and pricing, and privacy.
How to choose
If you’re new, start with Replika. If memory and customization matter most, go with Kindroid. Want variety? Character.AI is the cheapest way to explore. Whatever you pick, start on the free plan and only upgrade once you know you’ll use it. Compare them all in our complete guide.
Frequently asked questions
Are AI companion apps free?
Most have a free tier with limits, and a paid plan that unlocks voice, memory and customization. See our best free apps guide.
Are these apps safe to use?
They’re generally safe if you protect your personal information — see Are AI Companion Apps Safe?
Which has the best memory?
In our testing, Kindroid had the most reliable long-term memory.