Rumble Rigs vs Zip's Mailbox Club

Where they differ

Both are letters, activities and art & prints clubs. Rumble Rigs covers stickers on top of that; Zip's Mailbox Club stays narrower.

Rumble Rigs is the cheaper of the two — $11/mo against $19.99/mo, roughly 45% less on a monthly basis. Whether that gap means anything depends on what turns up: the dearer club is not automatically sending more, and on a gift the up-front total matters more than the monthly figure.

They arrive on different rhythms. Rumble Rigs comes monthly; Zip's Mailbox Club comes twice a month. More frequent post is not automatically better — it is more to keep up with, and for some children the wait is part of it.

Shipping is the one that rules a club out rather than in: Rumble Rigs ships to Not stated, Zip's Mailbox Club to US.

Zip's Mailbox Club addresses the post to the child by name; Rumble Rigs does not. That sounds minor and it is the detail people mention most often — the envelope being visibly theirs is most of the appeal for a younger child.

Zip's Mailbox Club expects a reply — there is something to write back to. Rumble Rigs is one-way. A write-back club is the better one if an adult will actually sit down and help; if not, it turns into a pile of unanswered post.

What each one sends

Rumble Rigs

Built around a collectible card game about trucks, and unusually generous for the price. Every envelope has a hand-illustrated trading card with battle stats, a letter written from the rig's own perspective, a screen-free activity, an 11×17 blueprint poster with a playmat on the reverse, a die-cut sticker and a bonus paper activity. Ships on the 1st.

Zip's Mailbox Club

Two envelopes a month from a character called Zip: an illustrated personalized letter with a monthly Mailbox Hunt and a collectible crew card, then a mid-month envelope with a coloring page, a paper game and a letter the child can pass on to a friend. Every package includes a reply card, envelope and stamp, and what the child writes back is worked into later letters.

Which one to pick

We are not going to pretend there is a winner here — they are close enough to be on the same shortlist, which is why this page exists. What we would say is that the choice usually turns on the household rather than the club: how much adult time there is, whether the child reads independently yet, and whether you want post that asks something of them or post that simply arrives.

Read the full listings before deciding, and follow through to each club's own site — prices, terms and gift options are theirs to change and ours only to record.