What are the best inexpensive CRM options available for iPad?
Base CRM is designed to function well on mobile devices, and it's pretty affordable (plans start at $15/month per user).
Were you looking for a CRM system specifically designed for iPad/tablet use? Because many of the major CRM vendors have mobile apps, but they're always tied to the flagship solution. Not only that, but the functionality on a lot of them can be somewhat lacking.
I recommend you to take a look at bpm’online CRM (https://www.bpmonline.com/crm-products) - cloud based CRM solutions to manage a complete customer journey – from lead to order, and to ongoing account maintenance. You’ll get a consistent user experience no matter what device you use: phone, tablet, desktop or laptop, so you can do your business everywhere. Moreover, bpm’online provides a native mobile app at no additional charge and supports Windows Phone and Windows 8.1-operated devices, iOS and Android-based devices. You can issue invoices using standard templates, system will remind an owner when the payment date approaches, which allows better control over the payments. You can try bpm’online solutions for free with no credit card involved - https://www.bpmonline.com/demo/bpmonline