GreenArrow vs Mumara (2026): which should you pick?
As of Nov 13, 2026, Mumara grades higher than GreenArrow: 2.6 against 1.2 out of 4.0.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
Mumara grades higher on value for money, the free plan, features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
GreenArrow
Email delivery engine for high-volume senders, cloud or on-premises
Mumara
Email marketing and sending platform, cloud-hosted or self-hosted
Which one is for you
Pick GreenArrow if
- Fits if you send hundreds of thousands of emails a month
- Works for email service providers and consultants who want their own sending engine
Look elsewhere if
- Pricey if you are small: Cloud starts at 300,000 emails for $250 a month
- Not for you if you want a free plan, as none is shown
- Skip it if you want the campaign editor on-premises without paying more, as Marketing Studio is a higher-priced edition
- Watch out: launch help, backups, Inbox Monitor and clustering are add-ons priced on request
Pick Mumara if
- Fits if you want a cheap cloud sender or your own hosted campaign software
- Works for resellers, as the site lists reseller packages
Look elsewhere if
- Skip it if you need a clear price, since the page doesn't say which volume $5 buys
- Tight if you send in bursts: Essential has a hard cap with no overages
- Pricey if you want Mumara Machine, from $47 to $6,397 a month
- Watch out: the free tier mentioned on the overview isn't on the plan page
- Watch out: the White Labeling add-on is only described as on the way
How we grade them
| 1.2GPAGreenArrowWeak | 2.6GPAMumaraGood | |
|---|---|---|
| Value for money | DCloud is $250 a month for 300,000 emails, over three times the $68 mark of the dearest tenth of sending tools and above the $149 mark for marketing tools. On-premises Engine leases from $600 a month. | BMumara ONE starts at $5 a month for 4,000 credits, under 60% of the cheapest quarter. But prices rise with contacts, the page doesn't say which volume the headline applies to, and the managed server is $47 to $6,397. |
| Free plan and trial | FNothing free: no small-sender or free plan is shown, only a demo. | CThe overview mentions a free tier of 100 emails a day, but the plan page shows paid plans from $5. Mumara Machine has a 14-day trial. The two pages differ. |
| Features | CSMTP and API sending, delivery controls and clustering. The on-premises Engine alone has no campaign editor; Marketing Studio is separate. | BNewsletters, transactional mail, dedicated IPs, bounce analysis, webhooks and self-hosted campaigns. Essential has a hard cap with no overages. |
| Ease of use | DNo store rating on record. An engine for ESPs and consultants, with server set-up and delivery rules to run. | CNo store rating on record. Two products with several plan ladders take working out, and the self-hosted one needs setup. |
| Platforms and integrations | CWeb, SMTP and API, cloud or your own servers. The listing names no integrations. | BWeb with an API and Amazon SES, Mailgun, Mailjet, SendGrid and SparkPost. No apps. |
| Best for | a high-volume sending engine for big senders | cloud email from $5 a month or campaign software you host |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: GreenArrow and Mumara. How we grade
Price against what you get
GreenArrow starts at $250 a month and scores 1.7 out of 4 on features, ease of use and platforms. Mumara starts at $5 a month and scores 2.7.
Mumara scores higher and starts $245 a month lower. Of the other email marketing and newsletter tools on the chart, 75 score higher than GreenArrow for less, and none scores higher than Mumara for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- GreenArrow also covers a/B testing.
At a glance
| GreenArrow | Mumara | |
|---|---|---|
| Pricing | Paid | Free plan |
| Starts at | $250 per month for 300,000 emails (Cloud) | $5 per month at the entry volume (Mumara ONE Essential, billed monthly) |
| Free plan | None | The pricing overview mentions a free tier of 100 emails a day for the Mumara ONE cloud service; the plan page shows paid plans from $5 a month. |
| Free trial | None listed | Mumara Machine, the managed server option, has a 14-day trial that includes all add-ons. |
| Web | ||
| Made by | GreenArrow Email | Mumara |
| Price read from | greenarrowemail.com | mumara.com |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
GreenArrow
- Cloud plans start at 300,000 emails a month; the pages show no small-sender or free plan, and volumes above 4 million are quoted individually.
- The on-premises Engine alone has no campaign editor; Marketing Studio is a separate, higher-priced on-premises edition.
- Launch assistance, server management and backups, Inbox Monitor and high-availability clustering are optional add-ons priced on request.
Mumara
- Mumara ONE prices rise with contacts or emails, with tiers from 1,000 to 5,000,000 contacts; the page does not say which volume the $5 to $15 headline prices apply to.
- Essential cloud plans have a hard cap with no overages; the self-hosted prices shown are monthly, and annual billing is advertised as saving up to 44%.
- Mumara Machine, the managed server option, runs from $47 to $6,397 a month, and add-ons such as Google Analytics ($10 a month) cost extra.
- A White Labeling add-on to remove Mumara branding is described as on the way.
Key features
GreenArrow
- SMTP and API sending
- Mail can be injected through SMTP or an HTTP API, with click and open tracking, bounce and feedback-loop processing, and event webhooks built in.
- Delivery controls
- Rate limiting, automatic backoff when receivers defer, multiple IP support and flexible routing, shown on delivery charts.
- Marketing Studio
- A responsive editor, segmentation builder, A/B tests (up to ten on one campaign) and triggered messages, with 39 data points reported per campaign.
- Cloud or on-premises
- The vendor says the same engine and interfaces run in both editions, so a customer can move between its managed cloud and its own servers.
- Clustering
- On-premises Engine supports cluster-wide throttling and auto-scaling, with a Kubernetes reference architecture and Prometheus metrics.
Mumara
- Newsletter and transactional email
- Mumara ONE prices newsletters by contacts and transactional email by volume, with broadcasts, drip campaigns, triggers, split tests and a transactional API.
- Dedicated IPs and pools
- Professional and Business cloud plans add dedicated IPs, dedicated pools and bridges from SMTP or API senders to a pool.
- Self-hosted campaign software
- Mumara Campaigns runs on your own server and connects to sending services such as Amazon SES, Mailgun, Mailjet, SendGrid and SparkPost.
- Reseller packages
- The Commercial self-hosted plan lets agencies create packages and sell email service to their own clients.
- AI email builder
- A chat-based composer with three quality tiers; self-hosted plans include a starter quota of AI credits that can be topped up.
- Analytics and monitoring
- Realtime delivery status, complaints workspace, reputation and blacklist monitoring, and bounce classification on the cloud plans.
Plans
GreenArrow
Cloud 300k$250
per month for 300,000 emails
Managed cloud sending for transactional and marketing mail, with Marketing Studio included. Overage is $0.48 per thousand emails.
Cloud 1M$450
per month for 1,000,000 emails
Same cloud features at a higher volume. Overage is $0.27 per thousand emails.
Cloud 2M$600
per month for 2,000,000 emails
Same cloud features at a higher volume. Overage is $0.27 per thousand emails.
Cloud 4M$1,000
per month for 4,000,000 emails
Same cloud features at a higher volume. Overage is $0.20 per thousand emails. Higher volumes are quoted individually.
Engine On-Premises Standard$600
per month, monthly lease
Engine on your own servers at up to 100,000 messages an hour; perpetual license $6,000. Pro (1M an hour) leases at $800, Enterprise (unlimited speed) at $1,250.
Engine + Studio On-Premises Standard$750
per month, monthly lease
Engine plus Marketing Studio at up to 100,000 an hour; perpetual $9,000. Pro leases at $1,100 and Enterprise at $1,500 a month.
Mumara
Mumara ONE Essential$5
per month for 4,000 emailing credits, billed monthly
Cloud service with a hard cap and no overages. Price rises with contacts or volume; the page lists tiers up to 5,000,000 contacts. AI composer, DKIM, SMTP and API.
Mumara ONE Professional$10
per month for 8,000 emailing credits, billed monthly
Adds dedicated IPs and pools, deeper bounce analysis, webhooks and live chat support. Extra emails cost $0.005 each. Price rises with contacts or volume.
Mumara ONE Business$15
per month for 12,000 emailing credits, billed monthly
Adds workflows, RSS and AI content tags, realtime engagement tracking, 30-day logs and an SLA. Extra emails cost $0.005625 each. Price rises with contacts.
Campaigns Personal (self-hosted)$7
per month for 1 user, billed monthly
License you install yourself: unlimited contacts, lists and sending nodes, broadcast editor, bounce processing, DKIM and lifetime updates. Community support.
Campaigns Professional (self-hosted)$17
per month for 1 user, billed monthly
Adds segments, drip campaigns, triggers, staff management and a helpdesk. Lifetime updates.
Campaigns Commercial (self-hosted)$27
per month for 10 users, billed monthly
For agencies and resellers: user management, Packages for selling to clients, premium support. Tiers of 25, 100 and unlimited users cost more.
Ways to pay less
GreenArrow
No public discounts listed.
Mumara
- Annual discount
Annual billing saves up to 44%
Mumara Campaigns offers annual billing that the page says saves up to 44% against monthly billing.
Common questions
Which is cheaper, GreenArrow or Mumara?
As of Nov 13, 2026, Mumara is cheaper to start with: $5 a month, against $250 a month for GreenArrow. GreenArrow starts at $250 per month for 300,000 emails (Cloud), and Mumara starts at $5 per month at the entry volume (Mumara ONE Essential, billed monthly).
Which has a free plan, GreenArrow or Mumara?
As of Nov 13, 2026, only Mumara has a free plan. GreenArrow does not.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.