#1
Irys
Arweave-born bundler turned own L1 'datachain': pay for 30 days, a year, or permanent storage; ~$2.44/GB one-off for permanence in the documented model.
no KYC provable
from $2.44 per GB one-off (permanent storage, whitepaper model)
Permanent storage
Pay once, store "forever" - how endowment-based storage really works and what it does not guarantee.
Short answer: Irys is our top-rated permanent-storage provider as of 2026-09-24 (6.5/10), from $2.44 per GB one-off (permanent storage, whitepaper model).
#2
Arweave
One-time per-byte upload to a permanent, public, replicated ledger - permanence is an endowment bet, not an SLA.
no KYC provable
from $57.90 per GB one-off
// FAQ
Is "permanent" storage really forever?
No. It is an endowment: your one-time payment is invested to fund future storage, so durability depends on the token economics holding up. That is a strong design, not a guarantee.