KiwiCo Crates (Kiwi Crate (ages 5–8) / Tinker Crate (9–14)) review 2027
A complete, well-designed project every month for every age from 0 to 16 — the kits our children asked about on delivery day
Is the KiwiCo Crates Worth It?
Best STEM kit overall. KiwiCo is the reliable answer: age-accurate, complete, and interesting enough that both children finished every crate. It is not the deepest science in the ranking — MEL and the chemistry sets teach more per box — but it is the one that kept working month after month.
KiwiCo Crates Pros & Cons
- Everything in the box, including the glue; nothing to buy
- Instructions our 7-year-old followed alone for the Kiwi Crate
- Eight age lines from Panda (0–2) to Eureka (12–16)
- Cancel any time; gift subscriptions
- $24–$30 a month adds up
- Some crates are craft rather than science
- Single crates on Amazon are pricier than the subscription
What problem does KiwiCo Crates solve?
KiwiCo Crates is a monthly subscription that arrives as a complete project, so the problem it solves is the one parents hit on a rainy Saturday: you want something a child will actually finish, and you do not want to drive to a shop for glue. The tagline is "A complete, well-designed project every month for every age from 0 to 16 — the kits our children asked about on delivery day." In testing, that held up: both children finished every crate, and the verdict calls it age-accurate, complete and interesting enough to keep working month after month. It is the second-ranked kit in a category of eight, with a score of 8.7.
How did it score in our tests?
We scored KiwiCo across five criteria. Learning value carries the most weight, 26 out of 30, measuring what a child could explain about the science or code afterwards and whether the kit teaches rather than just entertains. Engagement scored 19 out of 20, based on whether the child returned to it unprompted and how long a session held attention. Build quality and safety scored 14 out of 15, covering component quality, missing parts, small-part and chemical safety, and age accuracy. Parent effort scored 13 out of 15, for setup time and how much adult help each activity needed at the stated age. Value scored 15 out of 20, judged on price per hour of activity and whether it keeps giving after the first use.
What are the standout strengths?
The strongest practical point is completeness: everything is in the box, including the glue, so there is nothing to buy before starting. Instructions were clear enough that our 7-year-old followed the Kiwi Crate alone. The range is unusually wide, with eight age lines from Panda (0–2) to Eureka (12–16), and we tested ages 5–14. Each crate delivered about 3 hours of activity. You can cancel any time, and gift subscriptions are available.
What is in the box and how is it built?
Each crate is a monthly subscription covering science, engineering and art, with 1–3 projects or experiments per crate. Ages run 0–16 by crate line. No screen is needed. Prices start from $23.95/mo, with single crates from $29.95. Finished projects are keepers rather than throwaways.
How does it compare with rival kits?
Snap Circuits Jr. SC-100 scored 8.9 and costs $34.99 list, often around $22. It is a one-off electronics kit for ages 8+ (7 with help) with 101 projects, reusable indefinitely and no screen. It beats KiwiCo on score and on price for a single purchase, but it covers electronics only, while KiwiCo spans science, engineering and art across eight age lines.
MEL Science scored 8.4 and starts from $29.90/mo on the annual plan, with a starter kit including goggles and equipment. It covers chemistry, physics and biology for ages 5–10 (Kids) and 10–16 (Chemistry, Physics), with 2–3 experiments per box and optional app and VR lessons. It is the deeper science option, but its reagents run out while KiwiCo's finished projects are keepers.
Thames & Kosmos CHEM C500 scored 8.2 at $39.95 list, a one-off chemistry kit for ages 10+ with 28 experiments and no screen. It teaches real chemistry with reagents, but it is a single subject and reagents run out, where KiwiCo keeps delivering a new crate each month.
| KiwiCo Crates | MEL Science | Snap Circuits Jr. SC-100 | Thames & Kosmos CHEM C500 | |
|---|---|---|---|---|
| Our score | 8.7 | 8.4 | 8.9 | 8.2 |
| Ages | 5–14 tested | 10–16 | 8+ | 10+ |
| Subject | Science, engineering, art | Chemistry, physics, biology | Electronics | Chemistry |
| Format | Monthly subscription | Monthly subscription | One-off kit | One-off kit |
| Price | 23.95 $/mo | 34.90 $/mo | 34.99 $ | 39.95 $ |
| Needs a screen | No | Optional (app and VR lessons) | No | No |
| Projects / experiments | 1–3 per crate | 2–3 experiments per box | 101 | 28 |
| Reusable | Finished projects are keepers | Equipment yes; reagents no | Yes, indefinitely | Equipment yes; reagents run out |
| Hours of activity | 3 per crate | 2.5 per box | 9 | 6 |
Where does KiwiCo fall short?
It lost on value and learning depth against a chemistry set. The monthly cost of $24–$30 adds up, some crates are craft rather than science, and single crates bought on Amazon are pricier than the subscription. If you want the most science per box, MEL and the chemistry sets teach more.
Is KiwiCo good value?
Prices start from $23.95/mo, with single crates from $29.95. The value criterion scored 15 out of 20, reflecting price per hour of activity and whether it keeps giving after the first use. At roughly 3 hours per crate, the cost is real, and the cons note that $24–$30 a month adds up.
Who should buy KiwiCo Crates?
It remains right for curious kids of any age, and for gifts. With eight age lines from Panda (0–2) to Eureka (12–16), no screen required, and everything included, it suits families who want a complete project to arrive rather than another kit to assemble from parts.
KiwiCo Crates at a Glance
Rubric v1: Learning value 30 · Engagement 20 · Build quality & safety 15 · Parent effort 15 · Value 20. Score = Σ ÷ 10, locked Sep 11, 2026. How we rank.
Where to buy — prices checked Sep 11, 2026
KiwiCo Crates specifications
Where it loses
Value and learning depth against a chemistry set.
Still the right pick for
Curious kids of any age; gifts.
What owners say
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