Nastia AI Vs Replika AI

Our AI girlfriend specialists compare Nastia AI Vs Replika AI, highlighting differences in character variety, chat & image quality, customization features, privacy, and value for money

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uPDATED ON: March 25, 2025

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Replika AI

Tested With Scoring System 1.2

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We score AI girlfriend apps using scoring system 1.2, based on both objective testing data and subjective expert analysis. Our 6 scoring factors are weighted according to their importance:

Scoring Factors:

15%Character Diversity

15%Customization

20%Conversation

20%Image Quality

10%Privacy

20%Value for Money

About Our System:

This system is designed to identify the best AI girlfriend apps, drawing on extensive market research and interviews with AI girlfriend users.

Learn More:

Detailed testing and scoring explanation Interview with AI girlfriend users
Winner
Nastia AI Test Results

Type

AI Girlfriend App

Mobile App

No

Free Trial

yes

Type

AI Girlfriend App

Mobile App

Yes

Free Trial

yes

Nastia AI Vs Replika AI Verdict

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We evaluate each feature of an AI girlfriend app based on its significance, combining these scores for the overall rating:

Overall Rating Breakdown:

4.6 5.0 Outstanding with exceptional features. Highly recommended.

4.0 4.5 Very good, though with some room for improvement. Recommended.

3.0 3.9 Fair, functional but may not stand out. Not recommended.

For more information, see our detailed rating explanation here.

  • Nastia AI 4.7/5.0
  • Replika AI 4.7/5.0

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Nastia AI
Nastia AI logo
Overall Rating
4.7
Read Review
Character Diversity
3.0
AI Characters
0
Anime Characters
n/a
Male Characters
n/a
Customization
5.0
Ethnicities
5
Memory Injection
Name Selection
Conversation
4.5
AI Memory
50+ Messages
Reply Speed
< 2 seconds
Voice Messages
Sexting
Group Roleplay
Image Quality
4.5
Allows Pictures
Allows NSFW
Image Generator
Image Generator Difficulty
Moderate
Image Generation Speed
< 5 seconds
Max Images in Queue
16
Privacy
5.0
End-to-end Encryption
Chat Monitoring
No
Billing Discretion
Safety Analyses
Value for Money
5.0
Minimum monthly cost
$6.69/month
Payment options
Creditcard
Free Trial
Replika AI
Kupid AI logo
Overall Rating
4.7
Read Review
Character Diversity
4.0
AI Characters
27+
Anime Characters
Male Characters
Customization
5.0
Ethnicities
5
Memory Injection
Name Selection
Conversation
5.0
AI Memory
30 Messages
Reply Speed
< 4 seconds
Voice Messages
Sexting
Group Roleplay
Image Quality
5.0
Allows Pictures
Allows NSFW
Image Generator
Image Generator Difficulty
Very Easy
Image Generation Speed
< 15 seconds
Max Images in Queue
1
Privacy
4.0
End-to-end Encryption
Chat Monitoring
No
Billing Discretion
Safety Analyses
Value for Money
4.5
Minimum Monthly Cost
$12.00/month
Payment options
  • Creditcard
  • Paypal
  • Crypto
Free Trial
Asses Price Worth

Nastia AI Vs Replika AI Price

Nastia AI

$6.69

Replika AI

$19.99

Plan
Standard Plan
Premium Plan
Price
$6.69
$11.99
Price (paid yearly)
$4.16
$7.29
Tokens/month
200
2000
Custom AI Characters
2
10
Photo storage per companion
600
2000
Tokens
Price
Bonus
Image Cost: 4
Voice Cost: 0.2
Voice Cost: 3/min
100
$9.00
None
350
$35.00
+5.7% Bonus
500
$49.00
+10% Bonus
1000
$99.00
+15% Bonus
2000
$199.00
+20% Bonus
3000
$299.00
+25% Bonus

Full Nastia AI Vs Replika AI Comparison

Character Diversity

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Character Diversity checks how many different types of AI characters are in an app. We look at different ages, ethnicities, personalities, and if there are anime-styled or male characters. A higher score means there are many types of characters, so users can find ones they like and enjoy talking to.

Character Diversity Score Summary

4.7 Average Score (50+ AI girlfriends tested) 5.0 Best Score (Best AI Girlfriend) 3.0 Worst Score

For more information see our character diversity score explanation.

3.0

4.0

Nastia AI lacks traditional character diversity because you can’t select from a variety of pre-made characters. Instead, you have to create your own Nastia from scratch. While this allows for customization, it also means you miss out on a diverse selection of characters to choose from.

Replika AI does not have a character library and requires users to create their own 3D-looking AI companion, with no options for anime or realistic styles.

Pros

Pros


Cons

  • No pre-made characters

Cons

  • No AI character library

Customization

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Customization evaluates how much users can personalize their AI girlfriend in terms of appearance, personality, and interactions. This factor looks at options for changing physical traits (like ethnicity, age, and body type), personal preferences (such as hobbies and voice tone), and even the environment settings.

Customization Score Summary

4.7 Average Score (50+ AI girlfriends tested) 5.0 Best Score (Best AI Girl Generator) 3.0 Worst Score

For more information see our customization score explanation.

5.0

5.0

Customization is one of Nastia AI’s best features. You can change your AI girlfriend’s personality, appearance, and voice, which allows for a personalized experience. There are many choices, including different roles and focus settings. What sets Nastia AI apart is that you can keep customizing your AI character while chatting.

Replika AI allows full customization of your digital girlfriend even after creation. Similar to The SIMS, changes are instantly visible, making customization very user-friendly. It also includes a gamification system where you unlock new customization options by completing tasks.

Pros

  • Beginner friendly
  • Extensive options for personality
  • Focus slider for better memory in conversations
  • Ongoing customization during chats

Pros

  • Unlock customizations as you go
  • Beginner friendly

Cons

  • Not much customization for looks

Cons

  • Some customizations are paid

Conversation

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Conversation assesses the depth, realism, and personalization of interactions with the AI girlfriend. This includes the app’s ability to handle complex conversations, remember past interactions, and adjust its responses based on user input. We don’t just look at texting but also voice messages and calls if available.

Conversation Score Summary

4.8 Average Score (50+ AI girlfriends tested) 5.0 Best Score (Best AI Girlfriend Roleplay) 4.0 Worst Score

For more information see our conversation score explanation.

4.5

5.0

The conversation quality is engaging and interactive. You can adjust your AI’s personality during chats, leading to more dynamic discussions. However, sometimes the responses can lack depth, especially in complex scenarios and when using the standard LLM (not Smart Beta+), which may limit deeper roleplay experiences. The voice messages are also not as realistic as competitors like Candy AI or Muah AI.

Replika AI lets you text, roleplay, generate images, and call your AI companion. Responses are quick and detailed. It also has excellent memory due to its ‘diary’ feature, which keeps track of events so your AI companion remembers them. Replika’s strict NSFW filter only allows for light intimacy, not permitting explicit content like sexting.

Pros

  • The progress bar adds a gamified element

Pros

  • Realistic responses
  • High-quality voice messages
  • Superior memory

Cons

  • Responses can lack depth in complex topics
  • Voice messages are average

Cons

  • Strict NSFW filter

Image Quality

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Image Quality measures the visual representation of AI girlfriends. This factor considers the clarity, realism, and variety of images available, ensuring they enhance the overall interactive experience.

Image Quality Score Summary

4.8 Average Score (50+ AI girlfriends tested) 5.0 Best Score (Best AI girlfriend with pictures) 3.0 Worst Score

For more information see our image quality score explanation.

4.5

5.0

Nastia AI can generate images quickly, but the quality isn’t as impressive as some other AI girlfriend apps. While the image reference feature is useful, the details can be a bit off, which might disappoint users who want high-quality visuals.

Replika AI enables users to create photos of their digital companions in various poses. However, the companions are 3D and not realistic, so the image quality isn’t comparable to dedicated AI girlfriend apps.

Pros

  • Lightning-fast image generation
  • Unique image reference feature
  • Saves and organizes generated images

Pros


Cons

  • Quality can be inconsistent.

Cons

  • No realistic-looking AI image generator

Privacy

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Privacy assesses how well the app protects your data and keeps your interactions confidential. This includes:

  • Chat Monitoring (50%): Checking if conversations are encrypted and secure.
  • Billing Discretion (50%): Ensuring billing is discreet with no explicit terms.

Privacy Score Summary

4.6 Average Score (50+ AI girlfriends tested) 5.0 Best Score 3.0 Worst Score

For more information see our privacy score explanation.

5.0

4.0

Nastia AI takes privacy seriously by offering end-to-end encryption for chats, keeping your conversations secure. Thefront endd is also very clean without any NSFW content. Billing shows up as “Nastia Cybernetics,” which doesn’t include explicit references, but it isn’t discreet.

According to Replika AI’s privacy policy, they do not monitor chats or images. They do not offer billing discretion, so ‘Replika AI’ will appear on your bank statement. Since it’s not an adult app, billing discretion is generally unnecessary.

Pros

  • No chat monitoring
  • Full end-to-end encryption 
  • Clean front-end with no NSFW

Pros

  • No chat monitoring

Cons

  • No billing discretion

Cons

  • No billing discretion

Value for Money

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Value for Money is determined by comparing the app’s cost to its features, quality, and overall user satisfaction. This factor considers subscription prices, available features, and how the app stacks up against competitors in terms of pricing and offerings.

Value for Money Score Summary

4.5 Average Score (50+ AI girlfriends tested) 5.0 Best Score (Best free AI girlfriend) 3.5 Worst Score

For more information see our value for money score explanation.

5.0

4.5

Nastia AI provides great value, especially with its free plan that includes 350 messages. The paid plans are affordable and come with good features for those who choose to upgrade. The price to generate just one image is also much lower than most AI girlfriend apps, giving Nastia AI good value for your money.

Replika AI offers one of the most generous free plans in the market with unlimited chat messages. However, for more customization options, better memory, and phone calls, you need to subscribe to their monthly plan, which costs $19.99, higher than the average in the AI girlfriend niche.

Pros

  • Generous free plan with 350 messages
  • Affordable pricing compared to other apps
  • 40 Daily tokens by logging in

Pros

  • Free plan has unlimited messages

Cons

  • [TEXT]

Cons

Character Diversity

  • Realistic AI Girlfriends: 30
  • Anime AI Girlfriends: 25
  • Realistic AI Boyfriends: 8
  • Anime AI Boyfriends: 6
  • Realistic AI Girlfriends: N/A
  • Anime AI Girlfriends: N/A
  • Realistic AI Boyfriends: N/A
  • Anime AI Boyfriends: N/A

Customization

  • Customization Buttons & Menu’s
  • Ethnicities 5
  • Different Anime Races No
  • Customization Buttons & Menu’s
  • Ethnicities 5+
  • Different Anime Races No

Conversation

  • Reply Speed < 2 Seconds
  • AI Memory 50+ Messages
  • Voice Messages Yes
  • Phone Calls Yes
  • Reply Speed < 3 Seconds
  • AI Memory Unlimited
  • Voice Messages Yes
  • Phone Calls Yes

Image Quality

  • Image Generator Yes
  • Image Generator Difficulty Moderate
  • Image Generation Speed < 5 Seconds
  • Max Images in Queue 16
  • Image Generator No
  • Image Generator Difficulty N/A
  • Image Generation Speed N/A
  • Max Images in Queue N/A

Privacy

  • Chat Monitoring No
  • Billing Discretion No
  • Chat Monitoring No
  • Billing Discretion N/A

Value For Money

Plan
Standard Plan
Premium Plan
Price
$6.69
$11.99
Price (paid yearly)
$4.16
$7.29
Tokens/month
200
2000
Custom AI Characters
2
10
Photo storage per companion
600
2000
Tokens
Price
Bonus
Image Cost: 4
Voice Cost: 0.2
Voice Cost: 3/min
100
$9.00
None
350
$35.00
+5.7% Bonus
500
$49.00
+10% Bonus
1000
$99.00
+15% Bonus
2000
$199.00
+20% Bonus
3000
$299.00
+25% Bonus
  • Cheapest Plan $6.69/month

  • Cheapest Plan $19.99/month

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Herman Carter