The short answerGloriads is the better m19 alternative if you want to see and control what happens to your ads: $239 instead of $779 a month at $10,000 against m19 Professional, all four ad types at every price, your own campaigns kept, rules you can test and undo, and Kindle Unlimited reads counted. m19 Autopilot costs $59 a month at any spend, less than Gloriads above $1,000, if Sponsored Products run fully on their own are all you need.
What is m19?
m19 is Amazon PPC software from Paris, founded in 2018 and run by a team of about 14 people. It is a machine-learning tool, not a rule-based one: in its own words, there is no if/then logic and no manual rules to write. You set a goal, such as a target ACOS or a monthly budget, and its model builds the campaigns and sets the bids.
It comes as two products. Autopilot runs Sponsored Products on its own, for one account. Professional adds Sponsored Brands, Sponsored Display and Amazon DSP, for sellers, vendors, agencies and KDP authors, on 19 marketplaces according to its About page (23 in Amazon's partner directory).
m19 creates its own campaign structure instead of managing the campaigns you have, sends its changes to Amazon once a day, between 4 and 8 a.m., and overwrites the next day any change made by hand in the Amazon console.
How m19 pricing works in 2026
m19 Autopilot costs $59 a month, flat, for Sponsored Products only, one account and one user; m19 advises it under $5,000 of monthly ad spend. m19 Professional costs $479 a month plus 3% of the ad spend it manages, from the first dollar: $779 a month at $10,000. Agencies get a price on quote.
Plans are monthly or yearly and renew by themselves. The pricing page asks you to cancel at least one day before a monthly renewal, the written terms seven days, and both say 30 days for a yearly plan. A started period is billed in full, and the percentage of the last month is billed on its last day.
Both plans start with a 30-day free trial without a card. At the end, the account pauses unless you subscribe. Amazon DSP is billed separately and is not part of the trial.
Gloriads sets its price from last month's ad spend: $49 a month up to $1,000, $239 up to $10,000, with no percentage up to $100,000 a month. Every plan covers all four ad types, every marketplace and free team members. Every account starts with a 14-day free trial, without a card.
m19 Autopilot or Professional: the gap in between
There is nothing between m19's two plans. Autopilot, at $59 a month, only runs Sponsored Products and takes no settings beyond a target ACOS and a daily budget. As soon as you want Sponsored Brands, Sponsored Display or any say in how the campaigns are built, you move to Professional, at $479 plus 3% of your ad spend.
m19's own customers say so in their reviews: one Autopilot user writes that handing over Sponsored Brands and Display campaigns would mean spending around 700 euros a month, a massive step from 50 euros; another asks for a « Semi Autopilot » with some customisation.
Gloriads has one plan with every feature, from $29 a month: Sponsored Products, Sponsored Brands, Sponsored Display and Streaming TV, and as much or as little control as you want, from ready-made rule templates to rules you write yourself.
m19 for KDP authors: what Kindle Unlimited changes
m19 accepts KDP accounts, but neither its website nor its help center mentions KENP pages read, Kindle Unlimited or royalties. Its model aims at an ACOS computed on the sales your ads are credited with, so a book that earns mostly through page reads looks like it does not sell. Its TACOS target needs a Seller Central account, which authors do not have.
Gloriads reads Kindle Unlimited pages read and their estimated royalties from the Amazon Ads API, shows them on the dashboard and lets your rules use them: pages read, KENP royalties, and an ACOS that counts them. A rule can then keep a keyword that earns reads instead of cutting it.
At $1,000 of monthly ad spend, m19 Autopilot costs $59 a month for Sponsored Products only, m19 Professional $509, and Gloriads $49, Sponsored Brands included.
Why sellers look for an m19 alternative
The reasons come back in reviews and on comparison pages, and most are written in m19's own pages:
- You cannot see what it does: no rules to read, no preview of a change, no undo. One reviewer calls it extremely opaque, with almost no visibility into its actions.
- Nothing between Autopilot at $59, Sponsored Products only, and Professional at $479 plus 3% of your ad spend.
- Your campaigns are replaced: m19 builds its own structure and asks you to pause your existing campaigns.
- Changes you make in the Amazon console are overwritten the next day.
- A slow start: m19 counts about four weeks to optimize, needs sales history, and cannot launch a brand-new product on its target ACOS.
- On Professional, the 3% grows with your ad spend, and it is billed even on the last month after you cancel.
How Gloriads works differently
Gloriads runs rules you can read, written as IF, AND, OR, NOT and ELSE IF on any metric and any time window, from ready-made templates or from scratch. Rules work on all four ad types and act on bids, budgets, keywords, negatives, placements and campaign states, on the campaigns you already have. Several rules can watch the same campaign: when two disagree, the safest change wins.
Before a rule acts, Test now runs it on your real account and lists every change it would make. Once it is on, it runs as often as you choose, from every hour to every 3 months, inside guardrails: ceilings on bids and budgets, a cooldown between two changes, and your own edits, in Gloriads or in the Amazon console, left alone for 7 days.
Every change lands in Activity with the rule and the figures that caused it, and one click undoes it, or a whole rule run. Never-negate lists of keywords and of ASINs keep your brand and your own products out of every negative.
Around the rules, Gloriads launches campaigns in bulk from a spreadsheet, copies them to other marketplaces with keywords translated and bids converted, paces a monthly budget per marketplace, and shows one dashboard for every marketplace and ad type, with 14 months of day-by-day history from the day you connect. Team members are free.
Where m19 is still the better choice
Price, for Sponsored Products run fully on their own. m19 Autopilot costs $59 a month whatever you spend, so above $1,000 of monthly ad spend it costs less than Gloriads: at $10,000, $59 against $239. If you only advertise with Sponsored Products on one account and never want to touch a setting, Autopilot is hard to beat.
m19 Professional also has a TACOS target and a monthly profit and loss report from your Seller Central account, organic rank tracking that lowers bids when a product already ranks first, share of voice, keyword research, Amazon DSP and AMC reports. Gloriads does not have these today: TACOS is on our roadmap.
And m19 Professional comes with people: an onboarding call and account reviews after 2, 10 and 30 days, then every month. Its free trial lasts 30 days.
What happens to your campaigns when you leave m19
m19 pauses them. Its help center says that once the subscription ends, m19 pauses all the campaigns it created. They stay in your Amazon Ads account, paused, with their keywords, bids and negatives. Your older campaigns are usually paused too, since m19 asks you to pause them when you start. The day after you leave, you can have no ads running at all.
So choose before you go which campaigns to run: m19's, which you can turn back on as they are, or your older ones. Never both on the same products, or they compete for the same searches. And remove m19's access in Amazon only after it has paused its campaigns, or they keep running with no one adjusting them.
Gloriads reads all of them as they are, recognizes the ones m19 built by their names, and reads 14 months of day-by-day history from Amazon. Nothing changes until you turn a rule on.