Affinity Photo for iPad App of the Year 2017 - discount
Euan Williams To celebrate, it is priced at 50% off - £9.99 - "until Saturday" 9th December.
Full details, video and end of offer timing are here.
Compatible with iPad Air 2, iPad 2017, iPad Pro 9.7-inch, 10.5-inch and 12.9-inch
If a suitable iPad is only a not-too-distant dream this might be helpful since updates are likely to remain 'free' for a considerable time to come.