Slotsy
0 / 750 Claim Édition 01 →
● —

n° 00 — édition

The booking page is yours, not theirs.

White-label scheduling for studios, agencies, and creators.

TidyCal stamps its brand on every booking page and confirmation email — and won't let you remove it, even on the top tier. Slotsy never does. One flat license, your brand, your Stripe.

Get the lifetime deal — from $49 See the receipts

750 lifetime seats · your brand only · pay once

Studio Alver
book.studio-alver.com
Strategy session · 60 min Europe/Amsterdam
MAY 2026
MTWTFSS
THU · 14 MAY 6 open

Booked.

—

n° 01 — interoperate

Slotsy reads from anything that speaks iCal.
Writes to anything that listens to a webhook.

Google Calendar Google Calendar Apple Calendar Apple Calendar Outlook Outlook Any iCal feed Any iCal feed Stripe Stripe Zapier Zapier Make Make n8n n8n Webflow Webflow Framer Framer WordPress WordPress Carrd Carrd Google Calendar Google Calendar Apple Calendar Apple Calendar Outlook Outlook Any iCal feed Any iCal feed Stripe Stripe Zapier Zapier Make Make n8n n8n Webflow Webflow Framer Framer WordPress WordPress Carrd Carrd

n° 02 — observe

0

unanswered TidyCal support threads

Every question on the TidyCal AppSumo deal page · counted on 2026-05-02 · 100% with zero replies from the vendor. Support vacuum is real. Slotsy is the answer.

n° 03 — exhibit a

What your members actually get
when you use the leader.

Two confirmation emails, rendered side by side. Both real HTML. Decide if this is the brand you want handing off your highest-paying client.

Spot the difference
  • ·01Their sender. Their domain on every confirmation.
  • ·02TidyCal's logo stamped on your client's confirmation — unremovable, even on the top tier.
  • ·03"Powered by" stamped on a paid-for product, on your client's screen.
  • ·04No reply-to, so reschedules vanish into a noreply abyss.

n° 04 — pledge

What Slotsy will never do.

  1. ·01

    Inject an ad into your booking page, confirmation email, reminder, or reschedule flow. Anywhere your members see.

  2. ·02

    Print 'powered by Slotsy' on any surface your clients see. The mark stays on our marketing site, not yours.

  3. ·03

    Sit in the payment path. Your Stripe key, your payouts, your refund disputes. Slotsy is a booking surface, not a processor.

  4. ·04

    Surprise-price you. Lifetime means lifetime. If we ever need to charge you again, we'll send a real email from a real human, and you can leave with your data.

  5. ·05

    Add an 'AI assistant' nobody asked for. The tool stays small, fast, predictable. Features earn their way in from review data — not from a roadmap meme.

— Slotsy

Same product · different name on the door

Pick the brief that sounds like yours.

For the coach charging $300 an hour.

  • · Members pay you $300 and the confirmation email is stamped with someone else's brand — unremovable, even on the top tier.
  • · Your branding ends at the booking page — the reschedule link goes back to slotsy.net.
  • · Refunds and disputes route through someone else's Stripe account, not yours.
"Please stop adding branding for paid products." — TidyCal AppSumo review · +22 upvotes
Read the Coaches brief

n° 06 — inventory

Six features.
Zero roadmap asterisks.

Every tile is shipped, tested, included in the lifetime price. No 'Pro plan' lock. No upsells.

01 · domain

Custom domain
book.your-brand.com

Cloudflare for SaaS provisions TLS automatically. Point a single CNAME — Google indexes your domain on the SERP, not ours.

CNAME book.your-brand.com TLS · active
02 · email

White-label confirmation

Your sender. Your template. SPF + DKIM on your domain.

SPFpass
DKIMpass
03 · sync

Hybrid sync

Google OAuth or iCal feed — both first-class. Switch when you want.

04 · stripe

BYO Stripe

Restricted key. Zero platform fee. Money never leaves your account.

stripe_key="rk_live_…scoped"
platform_fee="0%"
05 · embed

Embed widget

One <script> tag. Inherits your typography. Mobile-responsive.

12KB · gzip
06 · webhooks

HMAC webhooks

Signed JSON POST · retry on 5xx · drop into Zapier or your own handler.

n° 07 — compared honestly

Side by side.
No marketing varnish.

Slotsy $49 once TidyCal$29 once Calendly$12/mo Cal.com$15/mo
Fully white-label · no forced branding ● ◐ ◐ ◐
Email from your own domain ● ○ ○ ◐
iCal feed sync (no OAuth needed) ● ○ ○ ●
Custom domain ● ● ○ ◐
BYO Stripe · your key, no platform fee ● ● ● ○
Embed widget ● ● ● ●
HMAC-signed webhooks at v1 ● ○ ● ●
Single payment, lifetime ● ● ○ ○
Founder-signed pledge ● ○ ○ ○

● shipped   ◐ partial / paywalled   ○ not available

n° 09 — on record

I built Slotsy because I read 1,395 unanswered TidyCal threads and realised the wedge isn't features — it's the simple promise that the page your client lands on is yours, not theirs.

— founder · Slotsy

n° 10 — lifetime deal · 750 seats

Pay once. Own it forever.

Slotsy launches as a lifetime deal on AppSumo — 750 seats, then it's subscription-only. No 'extension', no 'one more week' trick.

Limited to 750 lifetime seats · after that, monthly plans only

SOLO · $49 — once

For the consultant of one.

  • 1 connected calendar
  • you.slotsy.net subdomain
  • Unlimited event types + bookings
  • White-label everything · no ads
  • Embed on 1 site
  • BYO Stripe · keep 100%
Notify me when it's live
AGENCY · $99 — once

For the studio with five calendars.

  • 5 connected calendars · unlimited embeds
  • Custom domain · book.your-brand.com
  • Unlimited event types + bookings
  • White-label everything · no ads
  • Unlimited embeds · custom CSS
  • HMAC webhooks · BYO Stripe
  • Priority 24h support
Notify me when it's live

switching?

Coming from TidyCal, Calendly, or Cal.com?

Point your iCal feed at Slotsy, rebuild your event types, and move your link over. Here's the step-by-step for each.

From TidyCal → From Calendly → From Cal.com →

60-day money-back on AppSumo · subscriptions billed by Paddle when live · no exit survey

n° 11 — questions worth asking

The uncomfortable ones.

Is this another LTD-and-disappear scheme?

The lifetime deal is capped at 750 seats on AppSumo, then it's subscription-only — no surprise 'second batch'. And no rug-pulls: your tier's features stay yours forever. If Slotsy ever dies, you keep iCal export, JSON booking export, and your custom-domain DNS — none of which require Slotsy to keep breathing.

What happens to my data if Slotsy goes under?

Two paths. While we run: one-click JSON export of every booking, event type, and contact, on demand. If we stop: 90-day wind-down notice + the export + a static archive of your booking page so existing members hit a 'we've moved' page on your domain instead of a 404.

Why should I trust a solo founder over an established tool?

Honest answer: you don't have to. Use Cal.com if uptime guarantees matter more than ownership. We offer something they don't — a hard public pledge with personal liability attached, plus the wind-down clause. Track record beats promises, but a public, dated, named promise is the next best thing.

Why hybrid Google + iCal sync?

Google read-only verification is a quick review (days, not weeks). iCal works the day Slotsy launches, no Google review required. Neither path is a fallback — both are first-class. We read your busy times only; we never write to your calendar.

Why bring my own Stripe?

Three reasons.

  1. Slotsy never holds your members' money — can't freeze it, can't lose it.
  2. Slotsy can't take a platform cut — there's nothing to cut.
  3. Your existing Stripe keeps working: same payouts, same dispute history, same tax setup.

Lifetime deal · 750 seats on AppSumo

Your booking page
is your handshake.

Get the lifetime deal

From $49 · one payment, ever · 60-day money-back · 750 lifetime seats