SparkLoop vs Swapstack Comparison 2026
Both cover ad networks and newsletter & email. Here is what separates them on price, billing, what you can take with you, and coverage.
Get paid for recommending other newsletters
Newsletter sponsorships with a published fee
At a glance
- Both have a genuinely free tier.
Side by side
SparkLoop | Swapstack | |
|---|---|---|
| Starting price | Not listed | Not listed |
| Pricing model | Free plan, paid tiers | Free plan, paid tiers |
| Free tier | Yes | Yes |
| Billing | Not stated | Not stated |
| Free trial | Not stated | Not stated |
| API | Not stated | Not stated |
| Data export | Not stated | Not stated |
| Their cut | Not stated | 10% of what you earn |
| Runs on | Web | Web |
| Covers | Ad Networks, Giveaways & Referrals, Newsletter & Email | Ad Networks, Newsletter & Email |
| Works with |
Shaded rows are where the two answers disagree and both listings have answered. A row where one side has not stated a fact is left plain, because silence is not a difference.
SparkLoop
Get paid for recommending other newsletters
SparkLoop turns a newsletter's own audience into revenue by paying it to recommend other newsletters, either inside the email or on the page somebody lands on after subscribing. The same network runs the other way, so a publisher can buy subscribers from it as well as sell them. Both sides sit on the free plan. It works with the mainstream sending platforms rather than replacing one.
Our note
Treat the free tier as the whole product and the $2,000 add-on as a separate decision for a newsletter already growing fast enough to reward referrers. Read the per-subscriber rates before planning revenue around this, because they are the number the pricing page leaves out.
Only on this side
- Covers giveaways & referrals
- Works with Substack
Swapstack
Newsletter sponsorships with a published fee
Swapstack introduces newsletter writers to the brands that want to advertise in them, and it is unusually direct about what it takes for doing so. A publisher joins for nothing and keeps everything on a deal they source themselves; the fee applies to campaigns Swapstack brought. Advertisers pay a share of spend instead. For a writer with a few thousand subscribers and no interest in cold email, that is the whole pitch.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.