a yoga class system for multi-studio operators
PROJECT OVERVIEW
What this app does
A yoga class management system for 20 studios, serving 2,000 members and 50 instructors. Members can browse schedules, reserve or cancel classes, and review their bookings, while instructors can access rosters and record attendance. Studio managers maintain class schedules and member records across locations.
As a visitor, I can browse upcoming yoga classes by studio and date before signing in
As a member, I can browse available yoga classes by studio, date, and class type
As a member, I can reserve an available place in a scheduled yoga class
As a member, I can review my upcoming and past class bookings
As a member, I can cancel an upcoming class booking
As an instructor, I can view the yoga classes assigned to me
As an instructor, I can view a class roster and record member attendance
As a studio manager, I can create and update scheduled classes for a studio
As a studio manager, I can find and update member records
The following user counts are projected totals after one year of growth
20
studio_managers
Operational users who maintain schedules and member records for the studios.
50
instructors
Registered instructors who view assigned classes, access rosters, and record attendance.
2000
members
Registered yoga members who browse schedules, reserve classes, cancel reservations, and review booking history.
1000
anonymous_visitors
Public visitors who can browse class availability but do not have registered accounts.
COST BREAKDOWN
How your requirements become a plan and a price
Momen doesn't give a vague quote: it first sizes the project's actual demand for each capability and resource, then costs each item out. The numbers in the 'Project demand' column below — their scale assumptions and derivations — are detailed in Scale & sizing
Minimum viable plan
BASIC
The ongoing public, professionally branded multi-studio system requires at least the BASIC plan.
See the capability-by-capability assessment ▾
PROJECT DEMAND
ALLOWANCE PROVIDED (COMPOSITION)
AI points add-on
x 0
0 points
not purchased
(plan/kit 1.0M points)
No requirement
$ 0
Outbound data transfer add-on
x 0
0 B/mo
not purchased
(plan/kit 2.00 GB/mo)
No requirement
$ 0
Object storage
add-on
x 0
0 B
not purchased
(plan/kit 2.00 GB)
No requirement
$ 0
Database storage add-on
x 1
1.19 GB
10GB × 1/year, amortized monthly
(plan/kit 200.00 MB + add-on +991.96 MB)
Add-on fills +991.96 MB gap beyond plan/kit
$ 8.33
single-tenant kit
x 0
4 req/s
not purchased
(plan/kit 5 req/s)
Covered by plan/kit (margin ~25%)
$ 0
Basic
x 1
Basic is the minimum viable plan
Basic
(Plan tier: BASIC)
See minimum viable plan above
$ 39
plan + add-ons · usage-based · no development cost
WHY MOMEN
Your options for this project
In the table below, the 'monthly infrastructure' for the self-built / AI routes is derived from the AWS list prices shown below, sized against this project's actual usage. Figures cover infrastructure and operations only — AI usage is billed separately and excluded here, so they don't match the $47.33/mo all-in above.
Current usage sizing
AWS list pricing
0.00 GB (first 100GB free)
Internet egress → 0
0.00 GB-month
S3 Standard → 0
1.19 GB-month
RDS gp3 storage → 0.14
2 × db.m6g.large (Multi-AZ) × 730h
RDS PostgreSQL db.m6g.large → 232.14
2 × t4g.large × 730h
EC2 t4g.large → 98.11
Total ≈ $330.39 / mo
Pure cloud resources
DEVELOPMENT COST
MONTHLY CLOUD INFRA ($/MO)
MONTHLY TOTAL (INFRA + OPS, EXCL. AI USAGE)
Traditional outsourcing / build in-house
about $95,000 - $135,000
≈ $330
Based on the AWS estimate above
≈ $2,330
Infra $330 + ops ~$2,000
4-6 months
5 / 5
Vibe Coding
about $17,000 - $24,000
≈ $330
Based on the AWS estimate above
≈ $1,830
Infra $330 + ops ~$1,500
hours
5 / 5
AI full-stack generation
about $7,000 - $10,000
≈ $330
Based on the AWS estimate above
≈ $1,830
Infra $330 + ops ~$1,500
hours
3 / 5
Off-the-shelf SaaS / vertical solution
$0
N/A
Priced per seat, not by cloud infra
≈ $16,000+
Per-seat pricing, tens of thousands of users
days
1 / 5
Momen
Recommended
$0
$47
All-in: egress / storage / auto-scaling; excludes AI usage
$47
hours
5 / 5
Servers, databases, traffic and storage are inherent infrastructure costs for this project — you pay them whether you outsource, use Cursor or Lovable, or build it yourself (self-built runs ≈ $330.39/mo at AWS list prices, often more), on top of the dev and ops staff you'd need to hire. Momen bundles all of it into $0/mo all-in and removes the need for an ops team.
The frontend can be generated with AI tools (Cursor, Lovable, etc.); the hard part is the backend — auth, database, scaling, data security and ops. Momen delivers a production-grade backend as a BaaS: keep the vibe-coding speed on the frontend, while the backend runs on proven infrastructure — reliable, with no self-hosting or ops.
SCALE & SIZING
What scale this estimate assumes, and how the numbers are derived
Cost depends heavily on usage volume. First see the key assumptions and business scenarios this estimate uses, then the full calculation derived from each scenario for every resource — all adjustable to your real situation
We assume 2,070 registered accounts because the input explicitly provides 2,000 members and 50 instructors, and a lean operating model for 20 studios typically needs one manager account per studio. If your actual business operations differ, for example if managers oversee multiple locations or additional reception staff need accounts, this parameter can be adjusted accordingly.
We assume 365 equivalent days because a management system for 20 existing studios and 2,000 named members is typically a brownfield launch with a full pre-existing operational dataset rather than a consumer product slowly acquiring its first users. If your actual rollout starts with empty studios and gradual onboarding, this parameter can be reduced accordingly.
Popular Class Booking Rush
Routine Member Activity
4
times/month
3.6 req/s
Peak load
We assume a ten-minute weekly booking rush because popular evening or weekend classes commonly attract concentrated reservations shortly after availability becomes visible. This is treated separately from routine booking because its narrow window is the main concurrency risk. The four monthly occurrences represent a weekly release rhythm without changing mature-state participant levels. If the operator does not publish schedules on a weekly cadence, the frequency and duration can be adjusted accordingly.
Main impact: Peak Concurrency
The scenarios above set the assumptions for each resource; below is the full calculation derived from them. Click to expand each item.
DEVELOPMENT SCOPE
How this app works
What exactly does this budget support? Broken down by business scenario, showing the pages, data tables, automation flows and AI assistant behind each one
A studio manager finds a member and updates the member's operational record.
Public Schedule Page
users
A studio manager reviews, creates, and maintains scheduled classes.
Public Schedule Page
users
book_class
An instructor opens an assigned class roster and records attendance.
Public Schedule Page
users
book_class
A member reviews upcoming and historical class reservations.
Public Schedule Page
users
A member reviews upcoming reservations and cancels one booking.
Public Schedule Page
users
book_class
A signed-in member finds an available class and reserves a place.
Public Schedule Page
users
book_class
A visitor browses upcoming yoga classes before registering or signing in.
Public Schedule Page
users
page
data_table
action_flow
Member Management Page
Manager page for finding and maintaining member records.
Schedule Management Page
Manager page for reviewing, creating, and updating studio class schedules.
Class Roster Page
Roster page for viewing booked members and recording attendance.
Instructor Classes Page
Instructor page listing assigned yoga classes.
My Bookings Page
Member page for reviewing and cancelling personal class reservations.
Class Schedule Page
Authenticated schedule page where members find and reserve available classes.
Public Schedule Page
Public browsing page for upcoming yoga classes across studios.
FAQ
What you might want to know about this project
The Q&A below is generated by AI based on this project's type, features and scale
Does this design require external services or AI?
Can all 20 studios operate in one system?
Which features are included in the current scope?
What most affects resource usage for this yoga system?
Copy to discuss with AI
Challenge & re-estimate
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