The one admin your whole business runs on.
A composable, API-first business platform for service businesses. One workspace for contacts, bookings, billing, memberships and door access across every branch — with a client portal for your customers, and designed to work with the website you already have.
Main Branch · Saturday 10 October
Everything a service business runs on.
Shared capabilities that every industry builds on. Businesses switch on only what they need.
- RSRiya SharmaQuarterly Planriya.sharma@example.comSince 3 October 2026Lifetime value₹13,500Balance due₹4,500Not yet overdueMembershipQuarterly PlanEnds in 86 daysNext bookingHIIT · Tue 6:30 pmLast visitYesterday01
Contacts hub
Every customer, lead, student and member on one record — profile, activity timeline, bookings, invoices, memberships, messages and documents in one place.
- Coming upBook moreHIIT · Studio 1Tue 29 · 6:30 PMCancelPersonal training with RohanThu 1 · 7:30 PMCancel02
Bookings & classes
Classes, batches, appointments and 1:1 sessions, with waitlists, trial classes and make-up bookings.
- Invoice due₹1,770PT pack · 5 sessions · due FriPay now03
Billing & POS
Invoices, recurring billing runs, GST per plan, online payments and a point-of-sale for walk-in sales.
- Lifetime value₹13,500Balance due₹4,500Not yet overdueMembershipQuarterly PlanEnds in 86 daysNext bookingHIIT · Tue 6:30 pmLast visitYesterdayMember PF01activeCheck inJoined03/10/26Visits (30 days)14PT sessions left3 of 5LockerB-1404
Memberships & packs
Plans, freezes, upgrades and downgrades with credited days, and session packs for personal training.
- Entry passRefreshes every 30sMain entranceEntry allowed · just now05
Access & attendance
Front-desk check-in with member QR passes and clear allow/deny reasons; door-device connectors planned.
- Teacher hoursPayrollRavi2h/wkRahul1.5h/wkMeera1.2h/wk06
Staff, roles & payroll
Staff profiles, role-based permissions and teacher or trainer payroll with export.
- AutomationsRenewal reminder3 days before a plan endsWelcome emailWhen someone joinsWe miss youAfter 14 days without a visit07
Messages & automations
Email communication, renewal reminders and automations triggered by what happens in the business.
- Enquiry to enrolmentThis monthEnquiries4Contacted3Enrolled250% of enquiries enrolled08
Reports & retention
Joins, lapses, members who haven't visited recently and memberships about to lapse — each with a next action.
- Membership agreementSignedSigned by the member3 Oct, 6:42 pm09
Documents & e-signatures
Attach files to any record and collect signatures on forms and agreements.
- Welcome back, AshaYour membership is active.
Quarterly plan · valid until 30 November
Show entry passBook a session10Client portal
Customers sign in with a one-time code to see bookings, invoices and passes.
- New2TBTara BoseWebsite form · GuitarDMDev MalhotraWalk-in · DrumsContacted1KJKabir JainCalled · trial on SatTrial booked1IKIshaan KapoorPiano · Sat 4 pmJoined1RSRiya SharmaQuarterly plan11
Enquiries & leads
Website and walk-in enquiries in one pipeline, from first contact to trial class to joining.
- ShopOpen POSWhey protein · 1 kg₹2,49924 in stockGym gloves · M₹699Low · 3 leftShaker bottle₹34918 in stockResistance band set₹1,199Out of stock12
Shop & inventory
Sell products at the front desk with stock levels and low-stock flags, on the same bill as memberships.
- BranchesAdd branchMain BranchAndheri142 membersNorth StudioBorivali98 membersDowntownFort · opening soonPre-sales13
Branches & locations
Run several branches from one workspace, each with its own staff, schedule and reports.
- 78.1 kg −3.9 kgBody weight8 weeksThis weekMonPush · chest & shoulders✓WedPull · back & arms✓FriLegs & core—14
Progress & workouts
Workout plans, body measurements and progress charts on each member's record.
- IKIshaan Kapoor · PianoExam 14 NovGrade 1 ✓Grade 28 OctScales in D major are clean; work on left-hand timing.1 OctStarted the exam piece. Practise bars 9–16 slowly.15
Exams, levels & notes
Grades, exam dates and lesson notes kept on every student's record.
- Audit logOwner viewAMAarav changed the Quarterly plan price6:42 pmMRMeera marked attendance for Piano · Grade 26:05 pmRVRavi refunded invoice INV-10425:31 pmAMAarav gave Asha the Front desk role4:12 pm16
Audit log & security
Every change recorded with who made it and when, alongside role-based access for staff.
- RSRiya SharmaQuarterly Planriya.sharma@example.comSince 3 October 2026Lifetime value₹13,500Balance due₹4,500Not yet overdueMembershipQuarterly PlanEnds in 86 daysNext bookingHIIT · Tue 6:30 pmLast visitYesterday01
Contacts hub
Every customer, lead, student and member on one record — profile, activity timeline, bookings, invoices, memberships, messages and documents in one place.
- Coming upBook moreHIIT · Studio 1Tue 29 · 6:30 PMCancelPersonal training with RohanThu 1 · 7:30 PMCancel02
Bookings & classes
Classes, batches, appointments and 1:1 sessions, with waitlists, trial classes and make-up bookings.
- Invoice due₹1,770PT pack · 5 sessions · due FriPay now03
Billing & POS
Invoices, recurring billing runs, GST per plan, online payments and a point-of-sale for walk-in sales.
- Lifetime value₹13,500Balance due₹4,500Not yet overdueMembershipQuarterly PlanEnds in 86 daysNext bookingHIIT · Tue 6:30 pmLast visitYesterdayMember PF01activeCheck inJoined03/10/26Visits (30 days)14PT sessions left3 of 5LockerB-1404
Memberships & packs
Plans, freezes, upgrades and downgrades with credited days, and session packs for personal training.
- Entry passRefreshes every 30sMain entranceEntry allowed · just now05
Access & attendance
Front-desk check-in with member QR passes and clear allow/deny reasons; door-device connectors planned.
- Teacher hoursPayrollRavi2h/wkRahul1.5h/wkMeera1.2h/wk06
Staff, roles & payroll
Staff profiles, role-based permissions and teacher or trainer payroll with export.
- AutomationsRenewal reminder3 days before a plan endsWelcome emailWhen someone joinsWe miss youAfter 14 days without a visit07
Messages & automations
Email communication, renewal reminders and automations triggered by what happens in the business.
- Enquiry to enrolmentThis monthEnquiries4Contacted3Enrolled250% of enquiries enrolled08
Reports & retention
Joins, lapses, members who haven't visited recently and memberships about to lapse — each with a next action.
- Membership agreementSignedSigned by the member3 Oct, 6:42 pm09
Documents & e-signatures
Attach files to any record and collect signatures on forms and agreements.
- Welcome back, AshaYour membership is active.
Quarterly plan · valid until 30 November
Show entry passBook a session10Client portal
Customers sign in with a one-time code to see bookings, invoices and passes.
- New2TBTara BoseWebsite form · GuitarDMDev MalhotraWalk-in · DrumsContacted1KJKabir JainCalled · trial on SatTrial booked1IKIshaan KapoorPiano · Sat 4 pmJoined1RSRiya SharmaQuarterly plan11
Enquiries & leads
Website and walk-in enquiries in one pipeline, from first contact to trial class to joining.
- ShopOpen POSWhey protein · 1 kg₹2,49924 in stockGym gloves · M₹699Low · 3 leftShaker bottle₹34918 in stockResistance band set₹1,199Out of stock12
Shop & inventory
Sell products at the front desk with stock levels and low-stock flags, on the same bill as memberships.
- BranchesAdd branchMain BranchAndheri142 membersNorth StudioBorivali98 membersDowntownFort · opening soonPre-sales13
Branches & locations
Run several branches from one workspace, each with its own staff, schedule and reports.
- 78.1 kg −3.9 kgBody weight8 weeksThis weekMonPush · chest & shoulders✓WedPull · back & arms✓FriLegs & core—14
Progress & workouts
Workout plans, body measurements and progress charts on each member's record.
- IKIshaan Kapoor · PianoExam 14 NovGrade 1 ✓Grade 28 OctScales in D major are clean; work on left-hand timing.1 OctStarted the exam piece. Practise bars 9–16 slowly.15
Exams, levels & notes
Grades, exam dates and lesson notes kept on every student's record.
- Audit logOwner viewAMAarav changed the Quarterly plan price6:42 pmMRMeera marked attendance for Piano · Grade 26:05 pmRVRavi refunded invoice INV-10425:31 pmAMAarav gave Asha the Front desk role4:12 pm16
Audit log & security
Every change recorded with who made it and when, alongside role-based access for staff.
A composable, headless business platform.
Business logic lives in the platform API. Your website, mobile app or the Caelinex starter website are all presentation layers on top of it.
API-first
Every feature is exposed through APIs. The admin portal, client portal and websites are API consumers.
Headless
Use your own website or app — or the Caelinex starter website — on one business platform.
Multi-tenant
One platform with fully isolated organizations, branches and role-based access.
Composable
Businesses switch on only the modules they need; industries add their own on top.
From first setup to every customer.
Pulse Fitness · Main Branch · Saturday 10 October
We'll switch on the right modules for you. You can add more later.
Weight 68.2 kg (−1.4 kg) · Body fat 24% (−2%) · since the first assessment
Strength · 4 days a week · updated Monday
High protein · 1,900 kcal · updated Monday
Batches
| Batch | Enrolled | Status | Fee |
|---|---|---|---|
| Drums · 1:1 with Rahul | 30/09/26 | active | ₹4,800 per month |
| Guitar · Beginners | 30/09/26 | active | ₹3,500 per month |
Attendance
| Date | Batch | Status |
|---|---|---|
| 01/10/26 | Guitar · Beginners | present |
| 30/09/26 | Drums · 1:1 with Rahul | present |
Quarterly plan · valid until 30 November
Powered by Caelinex | Business OS
Designed around service businesses.
Each industry adds its own workflows on top of the shared platform.
- First releases
- Music academies
- Gyms & fitness studios
- In progress
- Salons & spas
- On the roadmap
- Clinics
- E-commerce
- Restaurants
- Hotels
- Corporate teams
- Field services
Rotating QR entry passes, door devices from any brand and a live entry log, connected to every member and membership.
See what's newRead the release notes ›Want early access?
Tell us about your business. We'll let you know when Business OS is ready for your industry.