Pricing made for every flow
Model how work moves through any process — orders, water, claims, people — and see where it waits. Start free; upgrade when your models grow.
Free
$0
Learn the ropes and try small models.
- 3 saved models
- Up to 6 blocks
- Runs up to 30 days
- Single run
- Diagram + text editing, samples, tour
ChiAha™
$68/month
No minimum term. Cancel any time.
- Unlimited saved models, with history
- Up to 25 blocks
- Runs up to 365 days
- Multi Run: up to 25 runs
- Ask, the built-in assistant: 20 questions a day
or $680/year (two months free) Pay yearly
Compare plans
| Free | ChiAha | |
|---|---|---|
| Saved models | 3 | Unlimited |
| Blocks per model | 6 | 25 |
| Longest run | 30 days | 365 days |
| Runs per experiment | 1 | 25 |
| Stop designer: Easy, Shapes and Exact | ✓ | ✓ |
| Version history | ✓ | ✓ |
| Ask, the built-in assistant | 3 a day | 20 a day |
| Connect Claude or ChatGPT | ✓ | ✓ |
| PNG / SVG export and share links | ✓ | ✓ |
| Open your model in desktop ReliaSim® | ✓ | ✓ |
Questions
Is there a free trial?
The Free plan never expires. Build and run small models for as long as you like; upgrade when you need bigger ones.
Can I cancel?
Yes, any time, with no minimum term. You keep ChiAha until the end of the month you paid for, then your account returns to Free. Your models stay saved.
What's a block?
A Buffer (where things wait) or a Constraint (a step that sets the pace and can be interrupted).
Need more?
ReliaSim is our desktop simulation for manufacturing, with bigger models, conveyors and more. Talk to us.