License Terms
Version 1.0 — July 2026 · Plain language on purpose. The short version: one license, two PCs, don't share the key, everything is reversible, all sales final.
1. What you're buying
A personal, non-transferable lifetime license to use Daito's Opti on up to two (2) Windows PCs that you own or control. "Lifetime" means the lifetime of the product: you receive all updates for as long as the product is actively maintained, with no recurring payment. It is not a promise of eternal maintenance.
2. Activation and machines
- Your license key activates on up to 2 machines, locked to a hashed hardware fingerprint. We never receive raw hardware serial numbers.
- You can free a machine slot yourself from inside the app (About → Deactivate) — for example when replacing a PC.
- A single hardware component change (e.g. a new CPU or motherboard, not both) does not consume an extra slot.
- After activation the app works offline; occasional silent revalidation happens when a connection is available.
3. Keep your key to yourself
Sharing, publishing, reselling or "lending" license keys is prohibited and voids the license. Keys are personal. We may revoke keys that show abuse patterns (e.g. activation attempts from many different machines).
4. Payment, delivery and refunds
- Payment is processed by Lemon Squeezy as merchant of record; they handle VAT and issue your invoice.
- Delivery is digital and immediate: your key and download are delivered with your order.
- All sales are final. Because the license key is digital content delivered and usable immediately, you expressly consent at checkout to immediate performance and acknowledge that you thereby waive the EU 14-day right of withdrawal (art. 16(m) Consumer Rights Directive / art. 6:230p sub g BW).
- This does not affect your non-excludable statutory rights. If the product materially fails to work on your system and support cannot fix it, contact us — we're not interested in keeping money for software you cannot run.
5. Revocation
We may revoke a license key in case of chargeback, payment fraud, key sharing/resale, or abuse. A revoked key stops activating and validating; the app's undo/recovery features keep working without a license, so a revocation never locks you out of reverting changes.
6. What the software does — and your responsibility
Daito's Opti changes Windows settings you choose to apply. It creates a System Restore point first, journals every change, and provides per-tweak undo plus Revert All. You remain responsible for your machine: read the description of a tweak before applying it, and keep backups of data you care about, as you should regardless of this product.
7. As-is disclaimer and liability
The software is provided "as is", without warranty of any kind, express or implied, including merchantability or fitness for a particular purpose. To the maximum extent permitted by law, our total liability for any claim related to the software or these terms is limited to the amount you paid for your license. Nothing in these terms limits liability that cannot lawfully be limited (e.g. intent or gross negligence).
8. Governing law
These terms are governed by Dutch law. Disputes go to the competent court in the Netherlands, without prejudice to mandatory consumer-protection rules of your country of residence.
9. Contact
Questions, slot problems, revoked-key appeals: daitoak@outlook.com.