Growth · alternatives · 2026

24 alternatives to Proof by SparkLoop

Display your newsletter stats on your website for free.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Proof by SparkLoop launched in 2020; newer entries below may have overtaken it.

1
Sponsor This Newsletter▲707
100+ newsletters ready to promote your product
2022 · its alternatives →
2
Newsletter Radar by SparkLoop▲400
Match with relevant newsletters & grow faster together, free
2024 · sparkloop.app · its alternatives →
3
Match by SparkLoop▲115
Newsletter cross-promotion made easy
2020 · its alternatives →
4
SalesPopup.io▲908
The fastest way to boost your conversion rate
2024 · salespopup.io · its alternatives →
5
EmailOwl▲126
Database of over 3k email newsletters to advertise with
2019 · its alternatives →
6
Newsletter Operating System▲518
All-in-one dashboard to launch & grow your newsletter
2020 · newsletteros.com · its alternatives →
7
Newsletter Spy 2.0▲277
A database of 100,000+ newsletters
2021 · cuepelis.me · its alternatives →
8
Substack▲235
Paid email newsletters made simple
2018 · substack.com · its alternatives →
9
Magic Links by SparkLoop▲167
Add a one-click signup button inside any newsletter
2021 · sparkloop.app · its alternatives →
10
SparkLoop▲350
The first referral tool for newsletters
2020 · sparkloop.app · its alternatives →
11
Partnero: Newsletter Referrals▲204
Expand your subscriber list with a referral powerhouse
2023 · partnero.com · its alternatives →
12
Viral Loops for Newsletters▲296
Grow your publication’s audience with referrals
2021 · viral-loops.com · its alternatives →
13
Newsletter Navigator▲114
Your co-pilot for smart newsletter growth
2023 · beehiiv.com · its alternatives →
14
Proofy▲181
Quickly validate and verify your email lists.
2016 · proofy.io · its alternatives →
15
Slide to Subscribe▲206
Let people subscribe to your newsletter with just a slide.
2020 · subscribe.to · its alternatives →
16
NewsletterDB▲100
All-in-one data platform for newsletter writers and sponsors
2023 · its alternatives →
17
Proof▲70
Increase website conversions with live social proof
2017 · useproof.com · its alternatives →
18
Paved Smart Campaigns for Newsletters▲141
The smart way to scale your newsletter sponsorships.
2022 · paved.com · its alternatives →
19
Newsletter Resources Kit▲112
A resources kit to launch, grow, & monetize your newsletter
2021 · its alternatives →
20
Breadcrumbs Free Email Verifier▲160
Free forever to validate up to 10,000 emails with 1-click
2020 · breadcrumbs.io · its alternatives →
21
Email Newsletter Checklist by MailSwift▲180
Send error free emails that your customers will love
2018 · oasiscity.io · its alternatives →
22
1000 Email Marketing Ideas▲154
Monthly list of fun and effective ideas to inspire emails
2022 · diadye.com · its alternatives →
23
ProveSource▲157
Leverage social proof to boost mobile sales and conversions
2018 · provesrc.com · its alternatives →
24
Email Cost Calculator by MailSwift▲134
Find out if your emails are costing you an 💪 and a 🍗
2018 · oasiscity.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →