Pricing & licensing FAQ
What the one-time purchase includes, how cloud credits and API presets are billed, and how the license works.
Is SimpliGen a subscription?
No. SimpliGen is a one-time purchase. Local generation on your own GPU is unlimited and free forever: no monthly fee, no per-image cost, no quota.
Then what are cloud credits?
SimpliGen Cloud is optional: it runs your generation on our datacenter GPUs and charges per generation, using credits.
- Credits are bought in packs, in the app or on the website.
- Credits never expire and there is no auto-renewal; it is not a subscription.
- Each preset shows its cloud price before you generate; the price depends on resolution, duration, and steps.
- If a cloud generation fails and produces nothing, the credits are refunded automatically.
You never need credits: everything cloud does, local does too (slower, on your hardware).
Why do some presets ask for a Google or OpenAI API key?
Presets built on closed models (Google Veo, GPT-Image, and similar) can't run locally or on our GPUs; they only exist on the provider's servers. For those presets you bring your own API key (for Google models: Google AI Studio), and the provider bills you directly (pay-as-you-go on your Google/OpenAI account). That usage is not included in the SimpliGen purchase and the money doesn't go through SimpliGen.
So, three kinds of presets:
| Preset type | Runs on | Costs |
|---|---|---|
| Local | Your NVIDIA GPU | Free, unlimited |
| Cloud | SimpliGen's GPUs | Credits per generation |
| API (Veo, GPT-Image...) | Google's / OpenAI's servers | Billed by that provider to your key |
How many computers can I install on?
A license key allows 2 active machines. To move to a new PC (or before reinstalling Windows, swapping major hardware, or factory-resetting), open Settings -> License -> Deactivate first, which frees the slot. If you forgot and hit the limit, contact support on Discord with your purchase email and we'll reset the key.
Does it work offline?
Yes. Local generation runs fully offline. The app verifies your license roughly every 30 days, so it needs an internet connection occasionally, and of course for downloads, Cloud, and API presets.
Is there a trial?
No trial. If it turns out your PC can't run SimpliGen locally, contact support; we refund purchases where the hardware can't do the job (see System requirements first).
Where do I re-download the app?
Your Gumroad library (the purchase email links to it) always has the latest installer and your license key. Lost the email? Search your inbox for "Gumroad". Installing a newer version over the top is safe; your models and settings are kept.
Is my data private?
Local generations never leave your machine. Cloud results are stored temporarily so the app can download them, then deleted.
Is SimpliGen open source? Is it ComfyUI?
SimpliGen runs a managed ComfyUI-based engine under the hood, but the app itself is a commercial product and not open source. If you already use ComfyUI: SimpliGen's engine is fully separate from your own install and won't touch it, and generated files are ComfyUI-compatible workflows you can drag into your own setup.