A comparison written by one of the two
Letters & Devotion vs My Father's World
We make one of these, so read this the way you would read any comparison written by a seller. What we can do is be specific about our own product, accurate about the shape of theirs, and honest about where they are the better answer. Their current price is on their site, not on this page, and the reason is at the bottom.
What My Father's World is
My Father's World is a Bible-centred curriculum that blends Charlotte Mason, classical and unit-study methods, founded by former Wycliffe missionaries and carrying that heart for the world through every year. Its family learning cycle teaches history, Bible, science and read-alouds to children of several ages together, with math and language arts bought separately per child, and it runs from preschool through high school. It is the curriculum a lot of large families choose precisely because the whole household studies the same thing at once.
The pricing difference that actually decides it
My Father's World sells a package per year as a one-time purchase. The family-cycle package can be shared by several children studying together, and math, language arts and the consumable books are bought per child. Their prices are on mfwbooks.com and move with their sales; read them there and do the arithmetic for your family.
Letters & Devotion is $29 a month for every child in the household, month to month, with no per-child seats and no course limits. That is $348 a year whether you have one child or four, or $290 a year on the annual plan. The first 30 days are free with no card, and when they end, lessons pause unless you choose to subscribe.
The comparison to run is the same either way: monthly price, times the number of children, times twelve.
Check My Father's World's current pricing on their own site →When My Father's World is the better choice
- You want to teach several children together around one table, one story, one history cycle. My Father's World is built for that and it is the best thing about it. In Letters & Devotion each child works in their own courses with their own teacher, and there is no shared family lesson.
- You want read-alouds, hands-on projects and a missions focus at the centre of school. Letters & Devotion has none of the three.
- You want science from the established creation-based publishers My Father's World builds on in several years, in print. Letters & Devotion holds the same position in Creation units new in October 2026.
- You want the parent to be the teacher, with a guide written for a parent who has never taught. Their teacher's manuals are that. Letters & Devotion hands the teaching to Clara.
Where Letters & Devotion is different
Each child at their own level, with their own teacher
Clara teaches each child inside their own lessons and responds to that child's actual mistake. A ten-year-old and a fifteen-year-old are in different courses at once, and neither waits for the other. That is the opposite of a family cycle, and which you want depends on your household.
Creation taught, and the choice left with you
Letters & Devotion teaches six-day creation alongside a King James Bible course every year, and lets each family choose at signup whether evolution is taught alongside it as what mainstream science says, and how far sex education goes. My Father's World builds its science on creation-based publishers and offers no such choice. Read what each curriculum teaches here before anything else.
One price, and nothing bought again next year
$29 a month covers every child in the family across all 84 courses, with no annual package, no consumables and no per-child math or language arts to add.
Read everything before you pay, and the records keep themselves
All 84 courses are open in full with no account and no card. Hours log automatically per child, mastery is tracked per skill, and a transcript prints in one click for each of them.
Start 30 days free
Or read all 84 courses first and compare the actual sequences. That door needs nothing from you at all.
Look inside all 84 courses firstEvery unit, every skill, every objective. No account, no card.or start now
Questions parents ask
Can my children learn together in Letters & Devotion the way they do in My Father's World?
No. Each child is enrolled in their own courses and works with Clara one to one. Two children in the same grade cover the same material, but there is no shared family lesson and no read-aloud strand.
Does My Father's World teach the same view of origins as Letters & Devotion?
Yes on creation. My Father's World's science in several years is built on creation-based publishers teaching a recent, literal creation, and Letters & Devotion holds the same reading. Both teach a recent, literal creation. The difference is the choice: Letters & Devotion lets each family decide at signup whether evolution is taught alongside creation as what mainstream science says, and how far sex education goes, and a lesson you turn off is never shown.
Is Letters & Devotion cheaper?
For a large family sharing one family-cycle package, the comparison is closer than with most curricula, because that is exactly what their model is good at. Letters & Devotion is $29 a month for every child, $348 a year, with no per-child math or language arts. Read their current prices on mfwbooks.com and add up your own family.
Other comparisons
Why there is no price for My Father's World on this page
We checked in September 2026 and the sources contradicted each other, including the companies' own pages against the review sites. Publishing a competitor's price that turns out to be wrong is unfair to them and useless to you, and any figure here would be out of date within a month anyway. Ours is above, because it is ours and we can stand behind it. Theirs is one click away, on their site, where it is current.