Platform Overview & Rules

About Bidin

Claim your date. Own the spotlight.

Bidin is an interactive 365-day promotional calendar marketplace. Pick dates on the calendar, paste any link, and get instant verified exposure for your product, app, startup, video, post, or handle.

📅

365-Day Visual Grid

Own specific days of the year with your brand logo displayed inside the calendar.

⚡

Direct Visitor Traffic

Visitors click logos directly to explore your website with verified real-time click tracking.

⭐

Permanent Fav Spots

Claim permanent featured spots that never expire, protected by a 2× outbid threshold.

How Bidin Works

Simple calendar-based promotion rules in 8 clear steps.

Pick a spot (Single or Multi-Date)

Choose any available date on the 365-day calendar. You can select a single date or click multiple dates across different months in a single checkout.

💡 Tip: Pick dates that align with your product launch, major update, or promotional campaign.

$N = N days ($1 = 1 day)

For normal calendar spots, the amount you pay determines how long your promotion stays live on that date.

$1 = 1 day·$3 = 3 days·$5 = 5 days·$10 = 10 days·and so on.

Each user or link can have up to 5 active normal spots simultaneously to ensure fair access for everyone.

Your logo gets the spot

Simply paste your link (website, app, GitHub repository, YouTube video, X/Twitter post, newsletter, or handle).

Bidin automatically retrieves the high-resolution logo/favicon and places it prominently inside your claimed calendar date square.

Normal spots cannot be outbid

Once your normal spot is confirmed, it is 100% locked and protected. Nobody can outbid or displace your promotion while it is active.

It remains live for the entire duration purchased. Once expired, the date automatically re-opens for anyone to claim.

Permanent Featured Spots (⭐ Fav Spots)

⭐ Featured

Bidin features 6 permanent featured "Your Fav Spot" spots on key calendar dates. They start at $10 and never expire.

Permanent Fav Spots do not count towards the 5 active normal spots quota.

2× Multiplier to outbid a permanent spot

2× Multiplier

Permanent spots remain yours forever unless another sponsor outbids you at 2× the standing bid.

$10→$20→$40→$80→$160→$320

Existing verified owners can self-upgrade their permanent spot at any time by paying only the delta difference ($40 → $80 pays +$40).

Interactive engagement & direct traffic

🖱️ Click logo = visit website·🔍 Hover = details

Visitors can hover any calendar square to view duration, owner, clicks, and bid stats, or click the logo to visit the promoted website directly.

Live Leaderboard & Discovery Feeds

Every active spot earns a position on the Universal Leaderboard ranked by standing promotional value.

Check the Stats page to discover Hot Dates, Highest Featured Bids, Recently Claimed feeds, and Expiring Soon spots.

Frequently Asked Questions

Quick answers about bidding, durations, and calendar spots.

What kind of links can I promote on Bidin?

You can promote websites, SaaS products, iOS/Android apps, AI tools, GitHub repositories, YouTube videos, X/Twitter posts, newsletters, portfolios, blogs, and community handles.

Can anyone outbid my normal calendar date?

No. Normal spots are 100% guaranteed for the exact duration you purchased ($1 = 1 day, $5 = 5 days, etc.). Nobody can outbid or replace your promotion while active.

How do multi-date selections work?

Click multiple available dates across any month on the calendar. Use the duration stepper (e.g. $3 = 3 days) to choose your per-date duration, and confirm all dates in a single fast checkout.

What happens when my promotional lease expires?

When your lease expires, the calendar date square automatically becomes available for anyone to claim next. Your past promotion is preserved permanently in the date's history.

How do the 6 Permanent Fav Spots work?

The 6 permanent Fav Spots (⭐) never expire. They start at $10 and stay active forever unless another bidder outbids the spot at 2× the standing bid ($10 → $20 → $40 → $80). Verified owners can self-upgrade anytime by paying only the difference.

How do I track clicks and views on my link?

Every active calendar spot tracks verified unique clicks in real time. You can view your live click count directly on your calendar square, on the Leaderboard, and on the Stats dashboard.

Ready to put your link in the spotlight?

Pick an available date on the calendar ($1 = 1 day) or claim a permanent Fav Spot.

Pick a spot →