Theralog vs Prism AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theralog
Engage in supportive conversations with an AI companion designed to help you manage stress and anxiety. Explore evidence-based techniques and personalized coping strategies for emotional well-being. This tool offers a safe space for self-expression and insights into your feelings.
- Intelligent conversations
- Personalized support
- Evidence-based techniques
- Emotional check-ins
- Safe and confidential
- 24/7 availability
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Discover peace of mind with Theralog – your personal AI mental wellness companion. Engage in meaningful conversations, express your thoughts and emotions, and find support whenever you need it. Theralog combines cutting-edge AI technology with empathy and understanding to provide a safe space for you to share your feelings, fears, and aspirations. Chat with Theralog and explore evidence-based techniques to manage stress, anxiety, and other mental health concerns. Our AI understands your unique needs and tailors its responses to offer personalized coping strategies, relaxation exercises, and positive affirmations. Please note that Theralog is not a substitute for professional health therapy, but it can be a valuable supplement on your journey to emotional well-being. It encourages open expression and helps you gain insights into your emotions, empowering you to take better care of your mental health. Key Features: • Intelligent Conversations: Theralog uses advanced natural language processing to engage in insightful, supportive, and non-judgmental conversations. • Personalized Support: Receive personalized recommendations and coping strategies based on your emotional needs and preferences. • Evidence-Based Techniques: Explore evidence-based techniques like mindfulness, cognitive-behavioral exercises, and positive psychology interventions. • Emotional Check-ins: Regular emotional check-ins help you track your mood, identify patterns, and reflect on your mental well-being. • Safe and Confidential: Rest assured that your conversations with Theralog are private and secure, providing you with a safe space to express yourself openly. • 24/7 Availability: Theralog is always here for you, offering support whenever you need it, day or night. • Complementary to Therapy: While Theralog can be an essential part of your mental health journey, it is not a replacement for professional therapy. Begin your journey to emotional well-being today with Theralog - your caring AI mental wellness companion. Privacy Policy: https://www.theralog.ai/privacy-policy Terms of Use: https://www.theralog.ai/terms Terms of Use (Licensed Application End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Prism AI
This AI companion offers personalized mental health support, helping users manage stress and anxiety through interactive conversations. It learns and adapts to your emotional state, providing confidential and secure assistance anytime, anywhere.
- Personalized AI mental health support
- Interactive conversations for emotional well-being
- Custom check-in notifications
- 24/7 support
- Learning and adaptation
- Confidential and secure conversations
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Prism: Your Personal AI Mental Health Companion Prism is a personal AI mental health companion—here for you when you need someone to talk to, whether you’re feeling stressed, anxious, or just need mental health support. Prism learns and grows with you. Designed to help you manage stress, find anxiety relief, and support your overall mental health, Prism combines AI with a unique “parts-based” approach to assist you when it matters most. Why Choose Prism for Your Mental Health Journey? • AI Mental Health Companion That Learns About You – Prism remembers past conversations and adapts to your emotional state, providing personalized support tailored to your mental health needs. • Interactive Conversations for Emotional Well-being – Engage in meaningful dialogues with your AI mental health companion, who offers empathetic listening and insightful feedback. • Custom “Check-in” Notifications – Schedule check-ins and reminders so you can engage in self-reflection and support when it matters most. • 24/7 Support Anytime, Anywhere – Access your AI mental health companion whenever you need support, right from your phone. Key Features • Personalized AI Support for Mental Health – Prism understands you, helping you navigate stress, anxiety, and other mental health concerns. • Learning and Adaptation – The more you interact, the better Prism becomes at providing support specific to your mental health journey. • Privacy and Security – All conversations are confidential and securely protected, ensuring a safe and judgment-free space for mental health exploration. Take Control of Your Mental Health Today Whether you’re dealing with daily stressors or seeking long-term support, Prism is here to assist you every step of the way. Start your journey toward a healthier mind with an AI mental health companion that truly understands you. Download Prism Now and Experience Personalized Mental Health Support Whenever You Need It. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Theralog at 5.0 against Prism AI's 4.0. Theralog also leads on review sentiment (100% vs 75%) and iOS requirement (16.0 vs 18.2). Prism AI's advantage is ratings volume (20 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Theralog sells 3 in-app purchases, starting at $2.99 per 7 days and Prism AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Theralog holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Prism AI has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Theralog's written reviews are positive against 75% of Prism AI's.
Theralog ships an update every 10 days, Prism AI every 9 days. Both last shipped on October 24, 2026.
| Parameter | Theralog | Prism AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.0 (20 ratings) |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 3 | 20 — better |
| Update frequency | Every 10 days | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 25 MB | 40 MB |
| Age rating | 12+ | 17+ |
| Developer | TabTab | TherapyAI, Inc. |
Customer experience
Theralog
Prism AI
In-app purchases
Theralog
- Weekly Pro Access$2.997 Days
- Monthly Pro Access$6.991 Month
- Yearly Pro$69.991 Year
Prism AI
- Therapy AI$9.991 Month
- TherapyAI Pro7 Days trial$99.991 Year









