# BookSlot — Appointment Scheduling | EternalEngine

BookSlot is appointment scheduling done right — Google and Outlook calendar sync, booking pages, and automatic reminders. Included on every paid tier.

BookSlot — Scheduling

Team+

# Bookings on autopilot. No back-and-forth.

BookSlot is appointment scheduling built for service businesses. Customers pick a slot. Calendars stay in sync. Confirmations and reminders go out automatically. You stop playing email tag and start running jobs.

[Start free](https://app.eternalengineos.io/signup?plan=free&interval=annual)[Request a Demo](https://eternalengineos.io/demo/)

Google + Outlook syncCustom-branded booking pageAuto reminders via PostFrame

Click to enlargeYour whole schedule on one calendar.

How it flows

## Customer clicks a slot. The rest is automatic.

Four moves, three of them yours to skip — BookSlot, PostFrame, and ClientForge handle the choreography.

01

### Customer picks a slot

From your custom-branded booking page. Sees only real availability — your Google/Outlook calendars are pre-filtered.

02Auto

### Confirmation fires

PostFrame sends a confirmation email instantly. iCal attachment lets the customer add it to their calendar with one tap.

03Auto

### CRM logs activity

Booking auto-appears on the customer's ClientForge timeline. Linked to the right account; deduplicated against existing contacts.

04

### Reminder + completion

24h reminder via PostFrame. Mark complete in BookSlot to trigger downstream automations — invoice, follow-up sequence, anything you wire up.

Capabilities

## Everything you need to run a booking calendar.

17 endpoints covering appointments, calendars, availability, recurrence, reminders, and a customer-facing booking page. Activity logged to ClientForge — every booking shows up on the customer's timeline.

### Customer Booking Page

A public, custom-branded page customers visit to pick a slot. No login required. Add your logo, colors, and copy. Embed in your site or share the link.

### Two-Way Calendar Sync

Google Calendar and Outlook sync both directions. Block off your existing meetings automatically. Customers see only true availability, never a double-booking.

### Availability Windows

Set working hours, breaks, buffer times, and blackout dates per calendar. Different rules for different services. Customers only see slots that fit your real schedule.

### Confirmations & Reminders

Confirmation email fires the moment a slot is booked. Reminder emails go out 24 hours ahead. All powered by PostFrame — no SendGrid setup needed.

### Recurring Appointments

Daily, weekly, monthly, or custom patterns. Preview the entire series before saving. Edit one occurrence or the whole series, just like Google Calendar.

### Confirm & Complete States

First-class lifecycle: *booked* → *confirmed* → *completed*. Trigger downstream actions (invoice, follow-up, NPS survey) on completion.

### iCal Export

Subscribe-able .ics calendar feed. Customers add bookings directly to whatever calendar they use — Apple, Google, Outlook, Fastmail, all of them.

### ClientForge Integration

Every booking auto-logs to the customer's activity timeline in ClientForge. Account resolution links bookings back to existing CRM records — no duplicate contacts.

### Multiple Calendars

Run separate calendars per teammate, per service line, or per location. Each calendar has its own availability rules, branding, and booking page.

Built for keeps

## Less email tag. More appointments kept.

BookSlot ships with the data model real service businesses actually need.

17

REST endpoints

2-way

Google + Outlook sync

∞

Calendars per tenant

iCal

Native subscribe feed

### Included from Basic up

BookSlot ships on Basic ($9.95/mo, 1 booking page), Team ($49/mo, 3 pages), Pro ($99/mo, unlimited pages), and Business ($199/mo, unlimited). Every tier includes the customer-facing booking page, calendar sync, and PostFrame-powered confirmations + reminders.

[See plan comparison](https://eternalengineos.io/pricing/)

One OS · Apps that compound

## Better together. By design.

A BookSlot booking logs to the ClientForge timeline, confirms through PostFrame, and — once the visit completes — can trigger the BidForge estimate that starts the job.

[ScrollForgeIn-App Store](https://eternalengineos.io/features/scrollforge/)[ClientForgeCRM](https://eternalengineos.io/features/clientforge/)[ThreadRealmCommunity Forums](https://eternalengineos.io/features/threadrealm/)[PostFrameEmail Delivery](https://eternalengineos.io/features/postframe/)[PayGatePayments](https://eternalengineos.io/features/paygate/)[NeuralGridAI Command Center](https://eternalengineos.io/features/neuralgrid/)[WikiShelfKnowledge Base](https://eternalengineos.io/features/wikishelf/)[BidForgeEstimates & Proposals](https://eternalengineos.io/features/bidforge/)[ProjectPathProjects & Time](https://eternalengineos.io/features/projectpath/)[AssetVaultFile Storage](https://eternalengineos.io/features/assetvault/)[TitanLedgerInvoicing & Books](https://eternalengineos.io/features/titanledger/)[NotifyStackNotification Orchestration](https://eternalengineos.io/features/notifystack/)[CrewGridField Service Dispatch](https://eternalengineos.io/features/crewgrid/)[StockShelfInventory Management](https://eternalengineos.io/features/stockshelf/)[SignSealDigital Signatures](https://eternalengineos.io/features/signseal/)[FlowRelayWorkflow Automation](https://eternalengineos.io/features/flowrelay/)

[See the full platform](https://eternalengineos.io/features/)

Questions

## Common questions, straight answers.

### Keep exploring

- [Job scheduling](https://eternalengineos.io/features/project-management/job-scheduling/)
- [CRM & client management](https://eternalengineos.io/features/crm/)
- [NotifyStack reminders](https://eternalengineos.io/features/notifystack/)
- [Plans and pricingFree to start; every paid plan has a 30-day free trial.](https://eternalengineos.io/pricing/)

Which plans include BookSlot?

Basic includes one public booking page, Team three, and Pro and Business unlimited. Every tier includes the customer-facing booking page and calendar sync.

Can customers book without an account?

Yes. They pick a time on your public booking page; the appointment lands on your calendar and they get a confirmation email.

Does it stop double-booking?

Yes. Availability rules and calendar sync block times you are busy, and you can add buffers between appointments.

Can I see no-shows?

Yes. The reports page shows completion and no-show rates by month so you can tune reminders.

## Run your business from one place.

Five plans, seventeen launch apps, one dashboard. Set up in under 5 minutes — change tiers any time.

[Start free$0 forever • No card • Upgrade any time](https://app.eternalengineos.io/signup?plan=free&interval=annual)[Talk to Sales](https://eternalengineos.io/contact/)

From $0 · Basic $9.95/mo · Save 20% on annual billing · Upgrade or downgrade any time