SparkLoop
Getting paid recommendations and buying cross-newsletter referrals
Our verdict: Good if distribution beyond Substack is your bottleneck. Hands Notes to Substack's native scheduler rather than posting from a stored session.
Turning long-form posts into Notes and cross-posting to LinkedIn, X, Bluesky, Threads and Medium
From $19.99/mo ($199/yr); higher tiers $39/mo and $89/mo (discounted yearly).
Source: official site
2026-10-18
Disclosure: We have no affiliate relationship with this vendor. StackKit is independent and not affiliated with Substack Inc. Spot an error? Email hello@stackkit.ink.
Getting paid recommendations and buying cross-newsletter referrals
A simple cloud queue for batch-scheduling Substack Notes
Writers with their own website who want on-brand Substack signup forms, popups and landing pages
Writers who live on Substack Notes and want batch scheduling, research and Notes-to-subscriber analytics