I don't know of anything similar to Life of Fred, as they offer a totally unique approach. LOF is not planning to go digital (as seen in the answer posted on this webpage).

Although the international postage is admittedly high, if your child learns well with the LOF approach, I would go ahead and purchase these books, then economize in another area to keep the family budget healthy and on track.

It may also be possible to purchase some LOF books second-hand, locally, thereby not experiencing the high international shipping fees.

In looking at the LOF FAQs webpage, I see that there is a Q/A pertaining to the OP's question: Where should I start in the Life of Fred Series?