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KiwiCo review
The category pioneer, with a crate for every age bracket.
Ranked #4 of 7
Weighted across 7 dimensions. How we score
What it actually is
KiwiCo effectively invented the STEM subscription crate. Each month brings a themed science, engineering or art project with all the materials and an instructional Tinker Zine magazine. Lines run from toddler to teen; Kiwi Crate (5-8) and Tinker Crate (9-14) are the ones that compete directly here.
The verdict in one line
The widest subject range and the tightest age targeting of anything here, which makes it a reasonable first subscription. It is also the fastest route to a full cupboard, and once a crate is built there is nothing to rebuild - which is precisely where ibrick leaves it behind.
Pros and cons
What we like
- Age targeting is the best in the category - projects are genuinely matched to what a child can do
- Subjects rotate widely month to month, so the experience stays fresh
- Instruction booklets are clear enough for most kids to build independently
- A line exists for almost every age from toddler upward
What to know first
- Many projects are laser-cut wood, cardboard or foam - assembled once, with little replay value
- The clutter accumulates faster than any other option here
- Breadth over depth: you cover a lot of subjects without going deep into any
How it scores, dimension by dimension
Percentages show how much each dimension contributes to the overall score.
- Replay value7/10(18% weight)
Can the same parts become something new, or is it built once and shelved?
- STEM depth9/10(18% weight)
Is there real science underneath, or a craft project with a science label?
- Novelty cadence8/10(14% weight)
How often does something genuinely new arrive? Weekly beats monthly.
- Wow factor8/10(14% weight)
Does the finished thing actually do something? Motors, motion, reactions.
- Value for money9/10(14% weight)
Cost per hour of genuine engagement, not cost per box.
- Builds independently10/10(12% weight)
Can your child do this alone, or are you the unpaid teaching assistant?
- Clutter control6/10(10% weight)
What does your living room look like after twelve months of this?
Best for
A first STEM subscription, or a child whose interests change month to month.
Not for you if
Parents whose main complaint is that the house is already full of half-finished projects.
Is KiwiCo actually the right one for your child?
Five questions covering what your child already does for fun, their age, the problem you're solving and how much time you have. Two minutes.
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KiwiCo head to head
Reusable machine kit against the category's best age targeting
KiwiCo vs CrunchLabsOne great mechanical build against monthly subject variety
KiwiCo vs MEL ScienceBroad monthly projects against deep chemistry
KiwiCo vs Little PassportsHands-on projects against story-led discovery
KiwiCo vs Green KidKiwiCo leads on replay value
KiwiCo vs LoveveryLovevery leads on clutter control
Where it sits in the field
| Kit | Score | Ages | New content | Reuses parts | Needs a parent | From | Visit brand site |
|---|---|---|---|---|---|---|---|
 ibrickOur pick | 9.6 | 5-12 | Weekly | Yes | Rarely | $27/mo | Visit |
 CrunchLabs Build Box | 8.7 | 8-14 | Monthly | Partly | Rarely | $24.95/mo | Visit |
 MEL Science | 8.4 | 5-16 | Monthly | Partly | Usually | $29.9/mo | Visit |
| KiwiCo | 8.2 | 0-16 | Monthly | Partly | Rarely | $23.95/mo | Visit |
 Little Passports | 7.9 | 3-10 | Monthly | No | Rarely | $24.95/mo | Visit |
 Green Kid Crafts | 7.8 | 2-10 | Monthly | No | Rarely | $19.95/mo | Visit |
 Lovevery | 7.7 | 0-5 | Monthly | Partly | Rarely | $36/mo | Visit |
Common questions
Who is KiwiCo best for?
A first STEM subscription, or a child whose interests change month to month.
Who should avoid KiwiCo?
Parents whose main complaint is that the house is already full of half-finished projects.
How much does KiwiCo cost?
$23.95-$32.95/mo depending on the crate line and whether you commit annually.
What ages is KiwiCo for?
The stated range is 0-16. In our view the genuine sweet spot is 5-8 on Kiwi Crate, 9-14 on Tinker Crate.