GlockApps vs Red Sift OnDMARC
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentRed Sift OnDMARC compared with GlockApps
GlockApps bundles DMARC analytics into a platform centred on seed-list placement testing and blacklist monitoring, which OnDMARC does not attempt. OnDMARC is far deeper on authentication, with hosted services across six standards. Buy GlockApps to learn where mail lands; buy OnDMARC to control who can send as your domain and to reach p=reject.
Choose GlockApps if
Email marketers, ESP-side deliverability teams, and consultants who need to prove and diagnose inbox placement across providers, run DMARC reporting at scale, and monitor reputation continuously, without paying for warm-up or sending infrastructure they already have elsewhere.
Choose Red Sift OnDMARC if
Small businesses with up to four domains that want a very cheap, capable, self-serve DMARC entry point with hosted record management, and larger organizations already buying into Red Sift's wider email security platform.
Side by side
13 attributes| Attribute | GlockApps | Red Sift OnDMARC |
|---|---|---|
| Category | Deliverability | Deliverability |
| Starting price | $59/mo (Essential, billed annually) (free plan available) | $9 per month billed annually (Express) (free trial) |
| Pricing model | Tiered monthly or annual subscription metered on Inbox Insight test credits and DMARC message volume, with a free tier and per-tier overage pricing above the included message allowance. | Subscription tiered by active sender domains, monthly email volume, and data history, with one published self-serve entry price and three custom-quoted tiers above it. |
| Free plan | 2 Inbox Insight test credits/month, up to 10,000 DMARC messages/month, 5 uptime monitors. | No |
| Free trial | No | Free trial available with no credit card required |
| Best for | Email marketers, ESP-side deliverability teams, and consultants who need to prove and diagnose inbox placement across providers, run DMARC reporting at scale, and monitor reputation continuously, without paying for warm-up or sending infrastructure they already have elsewhere. | Small businesses with up to four domains that want a very cheap, capable, self-serve DMARC entry point with hosted record management, and larger organizations already buying into Red Sift's wider email security platform. |
| Setup time | Under an hour to run a first seed test; DMARC Analytics requires a DNS record change (pointing the RUA tag) that can take up to 24-48 hours to start receiving reports depending on receiver reporting schedules. | Under an hour to add domains, publish records, and start collecting. Reaching a defensible p=reject takes four to eight weeks of calendar time, driven by how long it takes every legitimate sender to appear in a report and be fixed. Hosted records make each subsequent change a matter of minutes. |
| Learning curve | Low for running a seed test and reading inbox/spam placement; moderate for interpreting DMARC aggregate data and spam-filter scoring without prior authentication knowledge. | Moderate. The reporting is legible and the Investigate tool shortens diagnosis, but the delegation model and the enterprise framing both assume a slightly more technical reader than EasyDMARC does. |
| Platforms | Web app, API (test and reporting endpoints, scope not fully published) | Web application, Dynamic hosted record services, Investigate diagnostic tool |
| Compliance | GDPR-aligned processes (self-reported) | SOC 2, ISO 27001, GDPR |
| Founded | 2010 | 2015 |
| Headquarters | Pinedale, Wyoming, US (registered as Deluxe Custom Apps LLC, doing business as GlockApps) | London, United Kingdom |
| Ownership | Privately held (G-Lock Software group) | Venture-backed |
Strengths and limitations
GlockApps
Strengths
- Broad seed-list panel (70+ addresses across Gmail, Outlook, Yahoo, corporate) gives a credible cross-provider placement read for the price.
- DMARC Analytics is a full-featured report parser on its own, competitive with dedicated DMARC-only tools, and the free tier's 10,000 messages/month is genuinely usable for small domains.
- Blacklist and DNS-record monitoring catch infrastructure problems (a broken DKIM key, a new blacklisting) before they show up as a placement drop.
- Gmail tab prediction addresses a specific, common blind spot that plain inbox/spam scoring misses.
Limitations
- No native warm-up or sending capability; a separate G-Lock-affiliated product (WarmupIP) handles warming under its own brand, so buyers expecting one bundled subscription for testing and warming will need a second tool and a second bill.
- Seed tests measure a fixed panel of test inboxes, not your actual recipient list; results are a strong proxy, not proof of how any individual subscriber's mailbox will filter a message.
- Interface and reporting design read as dated next to newer entrants, functional but not polished.
- Free tier's 2 test credits are too thin to evaluate the product's core value without upgrading.
Red Sift OnDMARC
Strengths
- Express at $9 a month for four domains with full hosted record services is the cheapest capable published DMARC plan in the category.
- Dynamic hosted DMARC, SPF, DKIM, MTA-STS, TLS-RPT, and BIMI on every tier, including the entry plan, where competitors reserve record hosting for enterprise contracts.
- Forensic reporting included as standard rather than gated to mid or upper tiers.
- Dynamic SPF resolves the ten DNS lookup overflow without manual flattening, a failure mode most established domains have.
Limitations
- Only one tier has a published price; Essentials, Enterprise, and Premier are all custom-quoted, so the upgrade path is a sales conversation rather than a click.
- Thirty days of data history on Express is the shortest working window among comparable plans and makes periodic sending patterns hard to diagnose.
- The jump from four domains to twenty-five is enormous, with nothing published in between, which strands a company that grows to six or eight domains.
- The product is fundamentally built for organizations with security teams, so a small business is buying an entry tier of an enterprise product rather than a product designed for it.
Pricing compared
GlockApps
Tiered monthly or annual subscription metered on Inbox Insight test credits and DMARC message volume, with a free tier and per-tier overage pricing above the included message allowance.
- Free$0
- Essential$59
- Growth$99
- Enterprise$129
GlockApps is priced fairly for what it is: a diagnostics and monitoring subscription, not a fix. $59-99/month buying seed testing across 70+ addresses, full DMARC reporting, and blacklist monitoring is cheap relative to hiring a consultant to do the same work manually, and cheaper than most warm-up suites that bundle a thinner placement-testing feature. The catch is that none of it repairs anything: a team that finds a domain in spam through GlockApps still needs a separate warmer, a DMARC policy change, or a blacklist delisting request to act on the finding, so budget it as the measurement layer, not the whole deliverability line item.
Red Sift OnDMARC
Subscription tiered by active sender domains, monthly email volume, and data history, with one published self-serve entry price and three custom-quoted tiers above it.
- ExpressFrom $9
- EssentialsCustom
- EnterpriseCustom
- PremierCustom
Express is one of the best value propositions in this entire category, and it exists because Red Sift makes its money elsewhere. Four domains, a million monthly emails, forensic reporting, and full dynamic hosted services for SPF, DKIM, DMARC, MTA-STS, TLS-RPT, and BIMI at $9 a month is capability that EasyDMARC charges $71.99 for and dmarcian would price at $240. The catch is the ceiling. Thirty days of history is genuinely limiting, and the moment four domains is not enough you are in a quote process aimed at organizations with twenty-five sender domains. Take Express for what it is, an exceptional entry tier, and have DMARCLY or URIports in mind as the destination if you outgrow it.
Editorial verdict on each
GlockApps
Best ValueGlockApps is the sharpest diagnostics-and-monitoring buy in the category for teams that already have a sender and just need to know, with evidence, where mail is landing and why. Seed testing across 70+ addresses, full DMARC reporting, and blacklist monitoring at $59-99/month undercut most warm-up suites' bundled testing features while going deeper on each one. The tradeoff is real: nothing in GlockApps fixes what it finds, so a team expecting one subscription to both diagnose and repair deliverability will end up buying a second tool anyway. Budget it as the measurement layer of a deliverability stack, not the whole stack.
Read the full GlockApps profileRed Sift OnDMARC
OnDMARC Express is the best cheap DMARC plan available, and it exists because Red Sift makes its money from enterprise contracts. Nine dollars a month for four domains, a million monthly emails, forensic reporting, and dynamic hosted services across DMARC, SPF, DKIM, MTA-STS, TLS-RPT, and BIMI is capability that EasyDMARC prices at $71.99 and dmarcian at $240, from a vendor with roughly $70M in funding behind it. Two things keep it from being the automatic choice. Thirty days of history is genuinely short, and there is nothing published between four domains and the twenty-five-domain quoted tier, so growth means a sales process rather than an upgrade button. Buy Express if you have four domains or fewer and want hosted record management at the lowest possible price, and plan to move to DMARCLY or URIports rather than up the Red Sift ladder if you outgrow it. As with every product here, it says nothing about whether your mail reaches the inbox.
Read the full Red Sift OnDMARC profileGlockApps profile last reviewed 2026-08-22; Red Sift OnDMARC last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.