- You want spam testing, inbox placement, client previews and AI eye-tracking heatmaps in one plan, from $5/mo
- You need placement seeds beyond Gmail, Outlook and Yahoo: Unspam covers 7 providers, including Zoho, ProtonMail and AOL
- You want a free tier with no card: 5 spam tests, 3 placement tests, 3 device previews, 5 screenshots and 5 heatmaps a month, AI assistant included
- You'd rather check an email before sending (results in about 30 seconds, 14-day refund) than commit to per-mailbox pricing
A Folderly alternative with previews, heatmaps and a real free tier
Folderly, by Belkins, is a managed warmup and deliverability service priced per mailbox. Unspam is a self-serve pre-send testing suite (spam score, inbox placement, client previews and AI heatmaps) from $5/mo, and it does not do warmup.
Compared from public pricing and product pages, September 2026.
Which one fits you?
- You need automated inbox warmup. That is Folderly's core product; Unspam does not warm up inboxes at all
- You want free always-on spam-placement monitoring with Email, Slack and SMS alerts: Folderly's Pulse is $0/month
- You value hands-on, managed support: reviewers consistently praise Folderly's responsive human team
Why teams move from Folderly to Unspam.
Pricing in a different bracket
Folderly's core product is listed at $96 per mailbox/month billed yearly for 1 to 9 mailboxes, falling to $72 for 10 to 24 and $56 for 25 to 99, with $120 as the entry-tier monthly rate in Folderly's own pricing component. Its Inbox Insights testing add-on starts at $79/mo for 100 tests. Unspam charges per test instead: $0.18 a spam test and $0.50 an inbox placement, from a $5 monthly minimum, with a 14-day no-questions-asked refund.
The previews and heatmaps Folderly lacks
Folderly has no rendering previews and no heatmaps. Unspam shows how your email renders across clients and devices and overlays an AI eye-tracking heatmap, on every plan, including the free one.
Seeds beyond Gmail, Outlook and Yahoo
Folderly's placement seeds cover Gmail, Outlook and Yahoo, and reviewers note thin coverage beyond Google and Microsoft. Unspam runs placement tests across 7 providers, including Zoho, ProtonMail and AOL, with results in about 30 seconds.
Unspam vs Folderly, feature by feature.
Based on public product pages and documentation. Spotted something outdated? Tell us in the chat and we'll fix it.
Feature
Unspam
Folderly
Free plan or trial
Free plan, no card
Free: 2 placement tests/mo
First paid plan
$5/mo minimum, usage-priced
$96/mailbox/mo annual
Spam score testing
Yes
Yes
Inbox placement tests
Yes
Yes
Client previews & screenshots
Yes50+ clients, light & dark
—No
AI attention heatmap
Yes
—No
Blacklist monitoring
Partialon-demand checker
Yes
SPF / DKIM / DMARC checks
Yes
Yes
AI fix recommendations
Yes
Partialplacement analysis; AI generation is a separate product
Scheduled automatic tests
Yesplacement + spam score
Yes
Scheduled spam score tests
Yesdaily, weekly, or monthly
Yes
Sender accounts
YesUnlimited
PartialPer mailbox, on 1-9 / 10-24 / 25-99 / 100+ tiers
API access
YesCustom plan
Partialpublic API for the AI generator only; core API still planned, not public
MCP server
YesCustom plan
—No
Email verification
Yes
—No
Automated inbox warmup
—No
Yes
DMARC report monitoring
YesCustom plan, first domain free
Partialgenerator + DNS checks
Deliverability consulting
Yesseparate service
Yesdone-for-you service
Comparison based on publicly available information as of September 2026. Features and pricing change frequently, so please verify current details on each provider's website.
What each one costs.
Folderly is priced per mailbox. The yearly rate is official; the monthly figure is corroborated by third-party reviews.
- Free $0
5 spam tests, 3 inbox placements, 3 device previews, 5 screenshots, 5 heatmaps per month. AI assistant included.
- Custom $5/mo
Pay per test: spam tests $0.18, inbox placements $0.50, device previews $0.75, screenshots $0.20, heatmaps $0.30. Volume discounts to 30%, 15% off annual, $5 monthly minimum. API, MCP and three years of history included. DMARC monitoring is $6 per domain per month, first domain free.
- Folderly core (yearly) $96/mailbox/mo for 1-9 mailboxes, save 20%
Warmup/sender-reputation maintenance, daily inbox monitoring, automated placement tests, IP insights with blacklist info, domain health/DNS checks, spam-trigger and content analysis
- Folderly core, 10-24 mailboxes $72/mailbox/mo, save 20%
Same as the yearly plan, at the volume rate
Folderly flags this tier as its most popular.
- Folderly core, 25-99 mailboxes $56/mailbox/mo, save 20%
Same as the yearly plan, at the volume rate
- Folderly core, 100+ mailboxes Custom price
Same as the yearly plan, priced on request
- Folderly core (monthly) $120/mailbox/mo
Same as yearly plan
From Folderly's own pricing component, for the 1 to 9 mailbox tier; the site renders only the yearly tab, so monthly cannot be selected.
- Inbox Insights Free $0/mo
2 placement tests per month (Gmail, Outlook, Yahoo), IP/DNS checks
- Inbox Insights Monthly $79/mo
100 placement tests per month, per account; higher rungs are 250 ($120/mo), 500 ($160/mo), 1,000 ($200/mo), 2,500 ($220/mo), 5,000+ custom
- Inbox Insights Yearly $799/yr (save 15%, ~$66.58/mo)
100 placement tests per month, per account; higher rungs are 250 ($1,220/yr), 500 ($1,630/yr), 1,000 ($2,030/yr), 2,500 ($2,245/yr), 5,000+ custom
- Pulse $0/mo
Real-time spam-placement monitoring with alerts via Email, Slack, SMS and other channels
- Folderly EmailGen AI Free $0/mo
60 credits per month
Folderly EmailGen AI is a separate self-serve product at generate.folderly.com, not bundled with Folderly core or Inbox Insights.
- Folderly EmailGen AI Starter $49/mo ($39/mo billed annually, $470/yr)
150 credits per month
- Folderly EmailGen AI Growth $199/mo ($159/mo billed annually, $1,910/yr)
1,000 credits per month, plus the public generator API and webhooks
- Folderly EmailGen AI Pro $499/mo ($399/mo billed annually, $4,790/yr)
2,500 credits per month
- Folderly EmailGen AI Agency $1,499/mo ($1,199/mo billed annually, $14,390/yr)
5,000+ credits per month
Folderly pricing and feature information was collected from publicly available sources in September 2026 and may have changed since; it is provided for general comparison only and is not guaranteed to reflect current offers. Confirm current pricing on the vendor's website. Folderly is a trademark of its respective owner. Unspam is not affiliated with or endorsed by Folderly.
Unspam vs Folderly, answered.
Is Unspam a full replacement for Folderly?
Not if warmup is why you use it. Folderly's core product warms up mailboxes automatically; Unspam tests deliverability but does not warm up inboxes. If you mainly use Folderly's Inbox Insights for placement testing, Unspam covers that job, and adds client previews, heatmaps and email verification. Unspam also offers deliverability consulting as a separate service if you want hands-on help.
How does the pricing compare?
Folderly's core product is listed at $96 per mailbox/month billed yearly for 1 to 9 mailboxes, dropping to $72 for 10 to 24 and $56 for 25 to 99, with $120 as the entry-tier monthly rate in Folderly's own pricing component; its Inbox Insights testing add-on starts at $79/mo for 100 tests. Unspam's paid plans run from $5/mo for the whole suite, with 15% off annual billing and a 14-day refund. Done-for-you remediation is the priciest way to buy placement data, and the price spread across this market runs from $5/mo at one end to roughly $22,000/yr at the other.
What is the biggest functional difference?
Direction. Folderly maintains sender reputation by sending automated warmup traffic from your mailboxes; Unspam checks an email before you send it: spam score, inbox placement across 7 providers, client previews and an AI heatmap. One repairs reputation over time; the other tells you where a specific email lands.
How do the free tiers compare?
Folderly's free tiers are genuinely useful: Inbox Insights gives 2 placement tests per month, and Pulse spam-placement monitoring with Email, Slack and SMS alerts is $0/month. Unspam's free plan includes 5 spam tests, 3 placement tests, 3 device previews, 5 screenshots and 5 heatmaps per month, with the AI assistant included and no card required.