PayTalk™ vs Open Book AI Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PayTalk™
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PayTalk™ is a virtual assistant that lets you conveniently order food and groceries, payments and lots more simply by just saying it. PayTalk™ is the ultimate conversational commerce and engagement platform that's built around your needs. With PayTalk™ you get a virtual assistant that's made for you. PayTalk™ also works on Siri.
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 update cadence: PayTalk™ at every 10 days against Open Book AI Chat's every 2 months. Open Book AI Chat's advantage is device support (5 vs 1). On price, in-app purchases and iOS requirement 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. PayTalk™ sells 4 in-app purchases, starting at $4.99 per month 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.
PayTalk™ ships an update every 10 days, Open Book AI Chat every 2 months. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.
| Parameter | PayTalk™ | Open Book AI Chat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Mac, Apple TV, Apple Watch — better |
| Requires iOS | 16.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 170 MB | 54 MB |
| Age rating | 4+ | 9+ |
| Developer | Wiscount Corporation | Cat Bakery, LLC |
In-app purchases
PayTalk™
- PayTalk™ GPT Premium$4.991 Month
- PayTalk™ GPT Monthly$9.991 Month
- PayTalk™ GPT Premium$49.991 Year
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- PayTalk™ GPT Annual$99.991 Year
Open Book AI Chat
- Open Book AI T13 Days trial$3.997 Days









