AI ChatBot vs Open Book AI Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AI ChatBot
This AI-powered assistant helps you chat smarter and faster with lifelike conversations. It offers features like automatic replies, image sharing, and brainstorming assistance, all within a private and secure interface.
- Lifelike AI conversations
- Automatic replies
- Customized answers
- Image sharing
- Brainstorming assistance
- Private and secure
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ChatBOT is your intelligent, AI-powered assistant for iOS, designed to help you chat smarter, faster, and more naturally — anytime, anywhere. REAL CONVERSATIONS, POWERED BY ADVANCED AI Enjoy lifelike conversations with your personal AI assistant. ChatBOT uses cutting-edge language technology to provide engaging and helpful responses to your questions and ideas. SMART FEATURES AT YOUR FINGERTIPS From quick automatic replies to customized answers and image sharing, ChatBOT makes every conversation feel personal and dynamic. Whether you need help brainstorming, organizing thoughts, or just chatting, it’s here for you. PRIVATE & SECURE Your privacy matters. ChatBOT uses encryption to help keep your conversations safe and secure. FAST. EASY. FUN. With a sleek, user-friendly design, you can jump right in and start chatting—no learning curve required. ChatBOT Pro is available for $19.99/year (price may vary by region or promotion). Payment is charged to your iTunes Account at confirmation of purchase. Subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Account is charged for renewal within 24 hours prior to the end of the current period. Manage subscriptions and turn off auto-renewal in iTunes Account Settings after purchase. Privacy Policy: https://londonappstudio.co.uk/privacy.html Terms of Use: https://londonappstudio.co.uk/terms.html
Open Book AI Chat
This AI chat application leverages advanced natural language processing to enhance communication and productivity. It facilitates efficient interactions with colleagues, clients, and friends for collaboration, business, or personal connections.
- Advanced natural language processing
- Streamlined communication
- Team collaboration
- Client interaction
- Personal messaging
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Looking for an AI chat app that can simplify communication and boost productivity? Look no further than our cutting-edge chat app. With our app's advanced natural language processing capabilities, you can easily and efficiently communicate with colleagues, clients, and friends alike. Whether you're looking to collaborate with team members, close a deal with a client, or just catch up with a friend, our AI chat app is the perfect solution. Try it today and see the difference for yourself. Open Book AI comes with a free tier of AI usage that's limited. You may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you are limited in your features) • Auto-renewable subscription • Weekly ($3.99) duration with an initial 3 day free trial • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Terms of Use: https://openbooktest.net/tos Privacy Policy: https://openbooktest.net/privacypolicy End User License Agreement https://openbooktest.net/eula
Screenshots
Verdict
The clearest difference is rating: Open Book AI Chat at 5.0 against AI ChatBot's 4.6. Open Book AI Chat also leads on device support (5 vs 2). AI ChatBot's advantage is ratings volume (387 vs 2). 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. AI ChatBot sells 1 in-app purchase, starting at $19.99 per year and Open Book AI Chat sells 1 in-app purchase, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Open Book AI Chat holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: AI ChatBot has 387 ratings behind it against 2, so its average is the more settled of the two.
AI ChatBot ships an update every 6 weeks, Open Book AI Chat every 2 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | AI ChatBot | Open Book AI Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (387 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 21.4% of reviews | — |
| Number of ratings | 387 — better | 2 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac, Apple TV, Apple Watch — better |
| Requires iOS | 15.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 27 MB | 54 MB |
| Age rating | 4+ | 9+ |
| Developer | London App Studio Ltd | Cat Bakery, LLC |
Customer experience
AI ChatBot
Open Book AI Chat
Bugs and requests
AI ChatBot
Reported bugs
6 issues- App always crashing
- App crashes a lot
- App crashes a lot when asked question
- Lost chat history first during inline purchase
- App crashed and the chat was lost again
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- App crashes so much
Requested features
1 request- ChatGPT in Catalan Language
Open Book AI Chat
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AI ChatBot
- ChatBOT Pro$19.991 Year
Open Book AI Chat
- Open Book AI T13 Days trial$3.997 Days









