No marketing fog — a dimension-by-dimension look at teaching, placement, mastery, records, and price, including where Time4Learning is the better pick.
Time4Learning has been a homeschool staple for two decades. It's a complete PreK-12 online curriculum: animated video lessons, quizzes, automatic grading, and printable reports, all in a predictable sequence. For a lot of families it was the first product that made 'online homeschool curriculum' feel real, and its longevity has earned genuine trust.
The trade-off is that it's static. Every kid gets the same lessons in the same order at the grade level you pick. If your 8-year-old is ahead in reading but behind in math, you're manually juggling grade levels. If a video doesn't land, the option is... watch it again. There's no one to ask a question to.
Cullinan Academy takes the opposite architecture: instead of a library of pre-recorded lessons, it's an AI tutor that places each kid per subject, teaches in conversation, adapts mid-lesson when the kid is confused, verifies mastery, and schedules review. Here's how the two actually stack up.
| Dimension | Cullinan Academy | Time4Learning |
|---|---|---|
| Teaching method | A conversational AI tutor — your kid can ask 'wait, why?' mid-lesson and get a real re-explanation, with examples adjusted to what they just said. | Pre-recorded animated video lessons followed by quizzes. Clear and kid-friendly, but one-directional — the video can't answer a question. |
| Placement | Adaptive per-subject placement — a kid can run 5th-grade reading and 2nd-grade math at once, automatically. | Parents choose a grade level per subject (you can set one level up or down). Helpful flexibility, but placement is a parent guess, not a measured diagnostic. |
| Mastery verification | Verified mastery with anti-cheat probes and focused-time tracking — passing means the kid demonstrated understanding, not that a quiz got clicked through. | Auto-graded quizzes and tests. Retakes are allowed, and multiple-choice quizzes are clickable-through by a determined kid. |
| Records & compliance | Transcripts with GPA, verified mastery records, time logs, and state homeschool report templates generated automatically. | Automatic grading and printable activity/progress reports — genuinely useful for portfolios. High-school transcript support exists; check what your state needs. |
| Spaced repetition | Built in: previously mastered material returns on a per-kid review schedule so it doesn't evaporate over the semester. | No spaced-review system — lessons march forward in sequence, and revisiting is manual. |
| Electives & life skills | Cooking, auto mechanics, personal finance, music, art, and languages alongside the core — same tutor, same records. | Core four subjects, with some electives (especially at high-school level) and add-ons like foreign languages at extra cost as of this writing. |
| Parent reporting | A nightly AI-written narrative digest per kid — what happened, what stuck, what's next — instead of a portal you have to go interpret. | A solid parent portal with scores, time logs, and printable reports. The data is there; the storytelling is yours to do. |
| Price | $20 per kid per month flat, or $200/kid/year. 14-day free trial, no credit card required. | Roughly $24.95/month for the first PreK-8 student and about $34.95/month for high school as of this writing, with sibling discounts — check their current pricing page. |
| Offline & printables | Printable worksheets generated from each kid's actual lessons for screen-free practice time. | Printable worksheets and answer keys accompany many lessons — a genuine strength of the program. |
| Kid motivation | Avatar unlocks, streaks, and story-based lessons that read like adventures — motivation is built into the lesson itself. | A playground reward system (timed game breaks after lessons) for younger kids. Motivating for some; a negotiation point in other houses. |
Who should pick Time4Learning: families whose kids genuinely like video lectures and thrive on predictable structure. Some kids find animated lessons less pressured than any conversation — even with an endlessly patient AI — and Time4Learning's two decades of refinement show in its sequencing and its printable reports. If you want a known-quantity curriculum where you can see every lesson that's coming, it delivers exactly that, and its member community and curriculum-planning resources are mature.
Who should pick Cullinan Academy: families whose kids are uneven across subjects (most kids), ask questions mid-lesson (most kids), or have learned to click through video quizzes (plenty of kids). A static curriculum can't notice that your daughter is bored in reading and drowning in fractions — an adaptive one places each subject independently, re-teaches on the spot, verifies mastery instead of quiz completion, and hands you a nightly plain-English report plus transcripts and state templates. And at $20/kid/month, it's a little cheaper than Time4Learning's first-student rate as of this writing.
A full K-12 curriculum: placement, daily lessons, mastery verification, spaced review, electives, transcripts, and state-report templates. Like Time4Learning, it's designed to be the spine of your homeschool — the difference is that it adapts per kid instead of playing a fixed sequence.
Yes, and mid-year is exactly when adaptive placement matters most. The intake conversation measures where your kid actually is in each subject, so they resume from their real level — no repeated semester, no gaps papered over.
Maybe — and honestly, maybe Time4Learning is the better fit for a die-hard video learner. Cullinan lessons come in several styles (narrated stories, hands-on activities, chat tutoring, boss-battle assessments) with read-aloud audio throughout, but it is not a video-lecture platform. The free trial is the honest way to find out.
As of this writing: Cullinan is $20/kid/month flat, all subjects and electives included. Time4Learning runs about $24.95/month for the first PreK-8 student (more for high school) with sibling discounts, and some electives cost extra. For exact current numbers, check their pricing page — prices change.
Yes, and it goes further: automatic transcripts with GPA, verified mastery records, time-on-task logs, and templates matched to state homeschool reporting formats. Time4Learning's printable reports are good portfolio evidence; Cullinan aims to hand you the finished document.
Two weeks, every subject, every kid in the house — free, with no credit card. Start with the placement conversation and see where each of your kids really is.
Not affiliated with Time4Learning. All trademarks belong to their respective owners. Competitor features and prices change; this comparison reflects our honest understanding as of July 2026 — verify current details on their site before deciding.