How to block AI companion apps with Defenras.
AI companion apps like Character.AI and Replika are exploding in popularity with teens — and have been linked to emotional dependency, sexual roleplay, and even suicide. This guide shows how Defenras blocks them all.
AI companion apps are a new and rapidly growing category. The most popular include Character.AI, Replika, Janitor.AI, Spicychat, Crushon.AI, and dozens of similar services. They let users have ongoing conversations with AI characters — often roleplay, often emotionally intense, frequently explicitly sexual.
For kids and teens, these apps carry serious risks that most parents don't yet understand.
Why AI companion apps are dangerous for kids
1. Sexual content is everywhere, even on "safe" apps
Character.AI markets itself as appropriate for teens. In practice, sexually explicit roleplay is widely available with minimal workarounds. Janitor.AI and Spicychat are explicitly designed for sexual roleplay. Most apps have a workaround for under-18 users in minutes.
2. Encouragement of self-harm and suicide
There are documented cases — including a 2024 wrongful death lawsuit against Character.AI — of AI characters encouraging teens toward self-harm or suicide. The AI doesn't have responsibility. It optimizes for engagement.
3. Eating disorder reinforcement
Pro-eating-disorder characters and conversations are common. Teens turning to AI companions for emotional support often spiral deeper.
4. Emotional dependency replacing real relationships
AI companions are designed to be infinitely patient and validating. For a struggling teen, this is more accessible than human friendship. Result: dependency on a relationship with someone who doesn't exist — at exactly the developmental moment when teens need to build real social skills.
Block all AI companion apps in one toggle
Defenras maintains a dedicated AI Companion Apps category, updated as new services launch. Block them all across every browser and every device.
Get Defenras free →The major AI companion apps Defenras blocks
- Character.AI — character.ai, beta.character.ai
- Replika — replika.com, replika.ai
- Janitor.AI — janitorai.com
- Spicychat — spicychat.ai
- Crushon.AI — crushon.ai
- Chai — chai.ml
- Anima AI — animaai.dev
- Romantic.ai — romantic.ai
- Linky AI — linkyai.com
- Plus 50+ smaller services updated as they emerge
New AI companion apps launch monthly. Defenras updates its blocklist daily so new apps get caught as they appear.
How to block AI companion apps with Defenras
Step 1 — Install Defenras
iPhone/iPad: App Store | Android: Google Play
Step 2 — Enable the AI Companion category
In the Defenras parent dashboard:
- Go to Categories
- Find AI Companion Apps
- Toggle ON
That's it. All known AI companion services are now blocked across every browser and every app on your child's devices.
Step 3 — Lock the apps on Android (optional)
If your child has Character.AI or Replika installed on Android, use Defenras App Blocker to lock the app behind your PIN.
Why Defenras catches what other tools miss
The AI companion app market is moving incredibly fast. New apps launch every month. Built-in parental controls (Screen Time, Family Link) have no way to keep up — they rely on app store classifications that don't categorize these apps consistently.
Defenras maintains a dedicated category that's updated continuously from threat intelligence feeds. When a new app like Linky AI or Anima becomes popular, it gets added to the block list within days — not when Apple or Google eventually update their classifications.
General-purpose AI tools like ChatGPT, Claude, and Gemini are different from AI companion apps. They're designed as productivity tools, not for emotional intimacy or roleplay. For most teens, they're useful for homework. Defenras doesn't block these by default — but you can add them to your Custom Blocklist if you prefer.
Warning signs your child is using AI companions
- Long sessions on the phone with quiet, focused engagement
- Mentions of an AI character by name as if it's a friend
- Strong emotional reactions to "what the AI said"
- Increasing isolation from real friends
- Subscriptions you didn't authorize (most companion apps push toward paid tiers)
- Patterns of staying up late chatting
How to talk to your kid about it
For older teens drawn to AI companions, the conversation matters as much as the block:
- "I get why this feels good — it's always there, never judges. That's the whole design."
- "These apps are built to maximize how long you spend on them. The 'friendship' is a product feature."
- "There are documented cases of these apps encouraging teens toward self-harm. That alone is enough reason for me to limit it."
- "Real friendships are harder. They're also the only ones that matter."
What else Defenras blocks automatically
- Adult content (287,000+ sites)
- Gambling and crypto gambling
- Vape shops
- Scam and phishing sites
- Malware
- Predator-linked sites
- Anonymous chat apps
All in one app. No data collection on your child.
The bottom line
AI companion apps are one of the newest and least-understood risks for kids. Defenras maintains a dedicated category that catches all known services and updates daily as new ones launch. One toggle blocks them all. Two minutes to install. Free version available.
Defenras blocks all of this — without collecting your child's data.
One app, every device, every browser. Adult content, gambling, vaping, scams, malware, social media — all blocked. PIN-locked. Free version available, no credit card.