“calendar for couples?”
“ai alt-text generator”
“indie maker newsletter”
“open-source CRM”
“todo app… again?”
M
MapGO.io
Web
I
IdeaKiln.com
SaaS
L
LaunchDirectories
SaaS
D
datafa.st
SaaS
C
Best Claude Skills
Web
P
Postel.app
SaaS
Stoking the kiln…
Free Tool for Indie Hackers & Founders
Project your MRR, ARR, and total revenue across one-time, subscription, and hybrid pricing models.
Step 1
Choose how you plan to charge your customers.
Getting started
Choose one-time payment, subscription, or hybrid pricing to match your SaaS business.
Input your price, target users, growth rate, and churn to model your specific scenario.
See 12-month revenue charts, MRR/ARR calculations, milestones, and model comparisons.
Revenue strategy
Each pricing model has different strengths. Understanding the trade-offs helps you pick the right revenue strategy for your product and audience.
Simple to sell, no billing complexity. Users pay once for lifetime access. Best for tools, templates, and plugins. Revenue is front-loaded — you need steady new users to sustain growth.
Predictable recurring revenue that compounds over time. Higher lifetime value per customer. Requires managing churn and delivering ongoing value. The standard model for most SaaS platforms.
Combines a one-time base price with optional recurring add-ons. Captures upfront revenue while building a recurring stream. More complex to manage but offers diversified revenue. Used by IdeaKiln.
Key metrics explained
Your predictable monthly income from active subscribers. Track MRR growth month-over-month to gauge business health.
MRR multiplied by 12. Useful for annual planning, setting yearly goals, and communicating your revenue run rate.
How much revenue the average customer generates over their entire relationship with your product. Higher LTV means more room for acquisition costs.
How many users you need to hit $10k, $50k, or $100k in revenue. Gives you concrete user acquisition targets to work toward.
Scenarios
Targeting 1,000 users in Year 1 with 10% monthly growth. Projected Year 1 revenue: ~$49,000. Simple to implement, no recurring billing needed.
Starting with 50 users, 15% monthly growth, 5% churn. By Month 12, MRR reaches ~$2,450 ($29,400 ARR). Total Year 1 revenue: ~$18,600 with compounding growth.
A $49 one-time base price with a $10/year optional add-on (30% uptake), targeting 1,000 users. Combines ~$49,000 in one-time revenue with recurring add-on income for a diversified revenue stream.
Common questions
What's next
Submit your idea to IdeaKiln and get visibility, feedback, and support from a community of builders and indie hackers.