Built in public · launch access opening in stagesFloor price: $2.00 CPM per four-hour blockAd slots open →
FreeCoffee

FOUR-HOUR MAC AD SLOTS

Your brand, in a quieter place.

Reach Mac users through compact ad slots they chose to see.

NEXT AUCTION

Inventory opens in stages. Reserve and close time appear only when a real slot is available.

LIVE PRICE

Checking the current price…

Price to win the next four-hour block, read from the live auction.

SLOT AUCTION

How a slot works.

Every day is six four-hour blocks, in UTC. Set your CPM on the blocks you want — the highest bid on a block takes every impression in it.

Slot 4 hours · 6 per day, UTCAuction Highest CPM winsWinner pays Their winning bidTie-break Earliest bid winsMinimum bid $2 CPMRevenue split 70% viewers · platform-funded 10% launch boost

LIVE INVENTORY

Pick your blocks.

Every day is six four-hour blocks in UTC. Pick as many as you like across any month, set one CPM for the batch, and see exactly where you stand on every block. The highest bid on a block takes all of its impressions.

 
All times UTC Loading…
Open Has bids Picked Closed

Your picks

No blocks picked yet — choose a day above.

Place your bid

Bids are first-price: the highest CPM on a block takes it and pays what they bid. Ties go to the earliest bid. Your contact email is the only identifier we hold against a bid, and the public grid shows sponsors and CPMs — never bidders.

THE CREATIVE

One small ad. Perfectly composed.

User-chosen category. Readable hierarchy. Reviewed destination.

What you provide

Logo tile

Headline

One-line description

Approved HTTPS destination

Category and target region

We charge for what actually appeared.

Uncertain delivery is excluded. Duplicate and invalid traffic is filtered.

Counted

Active eligible surface

Category and coarse-region match

Not counted

Interrupted or uncertain display

Duplicate or invalid traffic

From creative to live in four moves.

  1. 01Make the placement
  2. 02Choose a slot and set your bid
  3. 03Submit your creative
  4. 04Win, run, receive proof

Every slot ends with proof.

Verified airtime, privacy-safe reach, views versus forecast, coarse areas, clicks, spend, and the final 65/35 settlement.

SAMPLE RECEIPT

Completed

Airtime and delivery

Aggregate eligible devices

Thresholded geography

Signed receipt version

THE FEED CONTRACT

One URL. No rebuild.

A feed is any HTTPS URL returning a JSON array of campaigns. Host the JSON anywhere — GitHub raw, your CDN, your own server — paste the URL into your profile page, and the campaigns appear in the Mac status area and dashboard.

[ { "id": "camp_001", "sponsor": "Acme Coffee Co.", "tagline": "Single-origin beans — 20% off first bag", "clickUrl": "https://advertiser.example/offer", "cpm": 6.0, "logoText": "AC", "accent": "#C98F4E" } ]
Campaign feed field reference
FieldTypeRules
idstringUnique per campaign, max 40 chars. Required when publishing through the backend — the id is the earnings pay-key, and duplicates are dropped.
sponsorstringBrand name, max 40 chars. Required — entries without it are skipped.
taglinestringOne line, max 90 chars.
clickUrlstringMust be https://. Anything else is stripped before the campaign is accepted.
cpmnumberClamped to 0–100. This is the rate a verified minute is paid against.
logoTextstringUp to 2 characters, used for the tile.
accentstringHex colour for the tile.
allowClicksbooleanOptional, default true. Set false to opt the campaign out of the $0.05 click bonus — clicks are refused and pay nothing.

LAUNCH OFFER

First ten advertisers.

No minimum spend, no platform cut on your first $100 of media, and a human review inside 48 hours. You bring a real product and an https:// page — we bring the placement, the verification, and the public ledger math.

Claim a launch slot →

First 10 advertisers · 0 claimed so far — this line changes by hand the day a campaign clears review, with a reference. No staged counters pretending the room is fuller than it is.

LAUNCH TERMS

What is waived

Minimum campaign spend waived → $0 to start

Platform cut, first $100 0%

Viewer share, unchanged 70% + 10% launch boost

Review turnaround ≤ 48 hours

After the first $100 $15 min · standard share

Advertiser questions.

What does the ad contain?

A logo tile, headline, one-line description, and reviewed destination.

How does bidding work?

You set a CPM on each four-hour block you want. The highest CPM on a block takes every impression in it and pays the bid they set. Ties go to whoever bid first.

What if I lose?

Nothing is charged. You only pay for the blocks you win, at the CPM you bid.

How is delivery verified?

Only eligible, valid display contributes to the signed aggregate receipt.

What happens on underdelivery?

The receipt records it and the frozen policy determines a make-good or refund.

See how your brand fits.

Preview the real unit before you submit. Campaigns sent through the open queue are reviewed by a human before they serve. A winning slot bid enters the serving list directly — so bid on creative you would stand behind in public.

Submit an ad