references/general-faq.md and references/faq-core.md.
Plans At A Glance
- Free ($0): All core Alter features with your own API keys or local models. No credit card required.
- Local+ (add-on): Advanced local voice models (Whisper Pro and Parakeet V3), up to 3 devices.
- Pro (subscription): Managed access to 50+ cloud models, router models (Best/Fast/Light), API gateway, remote tools, priority support.
- Lifetime (one-time): Same access level as subscription plan without recurring billing.
Trial And Free Usage
Is Alter really free?
Yes. Alter is free to use with core features when using local models or your own API keys.What happens after the 7-day trial?
After trial, the app remains functional with BYOK/local usage. Paid plans remove upgrade prompts and provide managed model access.Unlimited And Fair Use
What does “Unlimited” mean?
Paid plans include unlimited requests in Alter app, subject to fair use policy.How does fair use work?
- Uses a monthly budget system, not strict message caps.
- If budget is exceeded, requests may route to lower-cost models with in-app indication.
- API gateway has a daily limit (200 requests/day), then throttles to 1 request per 10 minutes.
- Heavy-use autonomous coding agent traffic is prohibited under policy.
Routers
What is Alter Light?
A router focused on speed/cost by selecting lite/flash models.What is Alter Best?
A balanced router that selects strong models (for example Sonnet-family) for quality and speed.What is Alter Fast?
A speed-first router prioritizing very high throughput models.Devices And Licensing
Can I use Alter on multiple devices?
Yes, with all plans. Active use is limited to one device at a time for a single user.Device limits by plan
- Local+: up to 3 devices installed
- Pro/Lifetime: unlimited installs
- All plans: one active device at a time; no license sharing
Discounts
Student / Academic discount
Available. Contact[email protected] from your university email.
Non-profit discount
Available. Contact[email protected] with organization details.
Support Guidance For Responses
- Be explicit about the difference between free core app and managed paid model access.
- Mention fair use and API gateway limits when users ask about “unlimited”.
- Include single-user licensing language when device-sharing is asked.
- Point users to billing/support:
[email protected].