- You want spam testing, inbox placement, client previews and AI heatmaps in one plan. GlockApps has no rendering previews or heatmaps
- You'd rather pay per test, at $0.18 a spam test from a $5 monthly minimum, than $59/mo billed annually ($708/yr) for GlockApps Essential
- You want a free tier that renews monthly: 5 spam tests, 3 inbox placements, 3 device previews, 5 screenshots and 5 heatmaps, no card required
- You want results in about 30 seconds, an AI assistant on every plan, and a 14-day no-questions refund
The GlockApps alternative that adds client previews and AI heatmaps
GlockApps is a seed-list placement tester with always-on DMARC, blocklist and IP-reputation monitoring. Unspam does the placement testing too, then adds the client previews, AI eye-tracking heatmaps, and AI assistant GlockApps leaves out, from $5/mo with a free tier and no card.
Compared from public pricing and product pages, September 2026.
Which one fits you?
- You want DMARC report processing on a free plan: GlockApps handles 10,000 DMARC messages a month at no cost, while Unspam's DMARC monitoring sits on the Custom plan at $6 per domain per month after the first one
- You want continuous IP-reputation, blocklist and uptime monitors with email, Telegram and Slack alerts (the Gappie bot) in one dashboard
- You need per-filter spam scores against SpamAssassin, Barracuda, Microsoft Exchange Online Protection, Proofpoint and Google's own filter, including Gmail tab placement detail
Why teams move from GlockApps to Unspam.
Lower entry price, no expiring credits
GlockApps' Essential plan is listed at $59/mo billed annually ($708/yr); monthly billing runs roughly 44% more at $85/mo, and unused subscription credits do not roll over to the next month or year. Unspam's paid pricing starts at $5/mo, with a 14-day no-questions refund on all of them.
No separate render tool needed
GlockApps tells you where your email landed, but not how it looks. Reviewers note rendering tests require a separate tool like Litmus. Unspam includes client previews and AI eye-tracking heatmaps on every plan, free tier included.
Reports built for fast answers
G2 reviewers say GlockApps' interface and report volume can feel overwhelming for newcomers. Unspam returns a result in about 30 seconds, and the AI assistant on every plan explains what to fix.
Unlimited sender accounts
GlockApps caps sending accounts by tier at 1, then 10, then 20. Unspam lets you connect as many sending accounts as you send from at no extra cost, and your monthly quota is metered by tests, not by senders.
Unspam vs GlockApps, 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
GlockApps
Free plan or trial
Free plan, no card
Free: 2 test credits
First paid plan
$5/mo minimum, usage-priced
$59/mo billed annually
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
Partialrule-based tips
Scheduled automatic tests
Yesplacement + spam score
Yes
Scheduled spam score tests
Yesdaily, weekly, or monthly
Yes
Sender accounts
YesUnlimited
Partialmailbox integration from Growth, no published cap
API access
YesCustom plan
YesEnterprise plans only
MCP server
YesCustom plan
—No
Email verification
Yes
—No
Automated inbox warmup
—No
—No
DMARC report monitoring
YesCustom plan, first domain free
Yes
Deliverability consulting
Yesseparate service
Yesseparate 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.
GlockApps prices are annual-billing rates. Monthly billing runs about 44% higher ($85/mo for Essential), and unused subscription credits do not roll over to the next month or year.
- 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.
- Essential $59/mo billed annually ($708/yr)
360 spam test credits, 600,000 DMARC messages, 15 uptime monitors, 10 IP reputation monitors, 3 DMARKOFF domains, 1 user
- Growth $99/mo billed annually ($1,188/yr)
1,080 spam test credits, 1,200,000 DMARC messages, 25 uptime monitors, 20 IP reputation monitors, 6 DMARKOFF domains, 5 users, automatic tests and mailbox integration
- Enterprise $129/mo billed annually ($1,548/yr)
1,800 spam test credits, 12,000,000 DMARC messages, 30 uptime monitors, 25 IP reputation monitors, 9 DMARKOFF domains, 10 users, custom seed emails
GlockApps 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. GlockApps is a trademark of its respective owner. Unspam is not affiliated with or endorsed by GlockApps.
Unspam vs GlockApps, answered.
Is Unspam a full replacement for GlockApps?
For spam testing and inbox placement, yes, and it adds client previews and AI heatmaps that GlockApps lacks. Both read DMARC aggregate reports now: Unspam's DMARC monitoring is on the Custom plan, with the first domain free. What Unspam does not replace is the rest of GlockApps' continuous monitoring, because it has no IP-reputation or uptime monitors. Neither tool offers inbox warmup.
How does Unspam's pricing compare to GlockApps?
GlockApps' entry Essential plan is listed at $59/mo billed annually ($708/yr); monthly billing costs roughly 44% more at $85/mo, and unused subscription credits do not roll over to the next month or year. Unspam's paid pricing starts at $5/mo, charged per test with a 14-day refund and 15% off annual billing. See pricing.
What's the biggest functional difference between Unspam and GlockApps?
GlockApps pairs placement testing with always-on infrastructure monitoring: DMARC analytics, IP reputation, blocklists and uptime. Unspam pairs placement testing with DMARC monitoring and content tooling: client previews, AI eye-tracking heatmaps, an AI assistant and email verification. The gap is narrower than it was, so choose on whether IP reputation and uptime matter to you, or design-side testing does. That same split, monitoring suites on one side and content tooling on the other, is what orders the comparison of this market.
How do the free tiers compare?
GlockApps' free plan includes 2 spam-test credits, 10,000 DMARC messages a month, 5 uptime monitors and 1 IP reputation monitor. Unspam's free plan renews monthly with 5 spam tests, 3 inbox placement tests, 3 device previews, 5 screenshots and 5 heatmaps. AI assistant included, no card required. Run a free test to compare.