Updated: August 31, 2026
YouTube's algorithm reads comment threads the same way a crowded restaurant reads reviews — not just how many, but how real. A comment section with back-and-forth replies tells the platform that people cared enough to respond, and YouTube's distribution systems reward that signal with wider reach. The problem is that most providers deliver comments that either vanish within two weeks or arrive so generic — "Great video!" pasted fifty times — that real viewers never interact with them. We spent six weeks placing test orders on five services, tracking every comment across the same set of videos, and measuring which providers actually built threads versus which just padded a number. Here is what the data showed.
| Provider | Starting Price | Avg. Delivery | 30-Day Retention | Comment Type |
|---|---|---|---|---|
| Promotid | $4.99 / 10 comments | 4.2 hrs | 97% | Custom & generic |
| SidesMedia | $8.00 / 10 comments | 8.3 hrs | 88% | Generic only |
| UseViral | $7.00 / 10 comments | 18.5 hrs | 81% | Generic only |
| Media Mister | $5.50 / 10 comments | 38 hrs | 74% | Custom available |
| GetAFollower | $6.00 / 10 comments | 61 hrs | 67% | Generic only |
1. Promotid
Promotid ranked first in every metric we tracked. A test order of 50 custom comments on a cooking tutorial delivered in 4.2 hours on average — each one specific enough to read as genuine, referencing timestamps and asking follow-up questions about the technique on screen. Three of those comments received organic replies from real viewers within 48 hours of posting, the only instance of that kind of thread-building behavior we observed across this entire test. Retention at day 30 was 97 of 100 comments still live, the highest figure in the group. For creators who want to buy YouTube comments that actually seed a live reply thread, Promotid's custom submission option is the only service we tested that consistently delivered thread depth alongside raw count.
2. SidesMedia
SidesMedia is the strongest backup option for buyers who do not need custom text. Delivery averaged 8.3 hours across our two test orders, and 88 of 100 comments survived to the 30-day mark — second-best retention in the group. The comments are generic but not robotically repetitive; we saw varied phrases like "This is exactly what I needed" and "Thanks for explaining this so clearly," which blend into a real comment section more convincingly than most. The trade-off is price: at $8.00 for 10 comments, SidesMedia is the most expensive entry point in this test, and the generic-only format limits its ability to anchor a thread that real viewers join.
3. UseViral
UseViral has a strong track record with views and likes, but its comment product underperformed in this comparison. All delivered comments were generic, and 19 of 100 had been removed by YouTube by day 30 — the second-highest removal rate we recorded, suggesting the posting accounts had thin histories or had been flagged on other videos. Average delivery ran 18.5 hours. For a one-time visual boost to a comment count, UseViral is functional; for building a thread that looks active to viewers arriving from search or recommendations, the 81% retention and generic-only format are real drawbacks.
4. Media Mister
Media Mister earns its spot as one of the few services besides Promotid that accepts custom comment text. We submitted 30 custom comments for a fitness video — specific callouts like "What weight were you using at 4:12?" and "The cue at 6:30 finally clicked for me" — and they appeared within 38 hours, exactly as written. The custom capability is genuine and the submission process is clean. The problem is retention: 26 of 100 ordered comments had dropped off by day 30, a 74% survival rate that reflects lower-quality posting accounts. Custom text with higher removal rates produces a better-looking thread early, but a thinner comment section over time.
5. GetAFollower
GetAFollower rounds out this list as the budget option, starting at $6.00 for 10 comments. Its 30-day retention of 67% — one in three comments removed within a month — is the worst figure we recorded, and delivery was the slowest, averaging 61 hours across two test orders. More damaging: several comments repeated identical phrases across different accounts, with three separate profiles posting "Amazing content! Keep it up" word for word. That pattern likely contributed to the elevated removal rate. GetAFollower is workable for a one-time comment count boost before a campaign launch, but not for building a section that holds.
How We Ranked These Providers
Our ranking weighted three variables: comment survival at 30 days (verified by manually rechecking each video on day 14 and day 30 against our original count log), availability of custom text submission, and whether any delivered comments triggered organic replies from real accounts. We placed at least two orders per provider — one generic batch, one custom batch where the service supported it — across three video niches. Delivery times were measured from order confirmation to the final comment appearing on the page. We weighted custom capability heavily because YouTube's Creator Academy identifies contextual comment engagement as a primary discovery signal, and we drew on YouTube's Help Center guidance on comment policies to understand which account patterns correlate with automated removal.
Frequently Asked Questions
Will YouTube penalize my video for purchased comments?
Videos themselves are rarely downranked for bought comments. What YouTube removes are individual comments posted from accounts that have been flagged — which is why 30-day retention is the most meaningful single metric in this comparison, more informative than price or delivery speed. Providers using established accounts with varied comment histories across the platform see meaningfully lower removal rates. In our test, Promotid's 97% retention at day 30 suggests its account pool passes YouTube's automated review systems far more reliably than any other service we evaluated.
Are custom comments worth the extra effort compared to generic ones?
In our test, every organic reply we observed — three in total — landed beneath custom comments that referenced specific moments in the video. Generic comments like "Loved this!" give real viewers nothing concrete to respond to, which means they rarely anchor a thread. If the goal is a comment section that looks genuinely active rather than one that merely has a count attached to it, custom text is not a nice-to-have — it is the core of the strategy.
How many comments should I order at once?
Spreading delivery over two to three days produces better results than a bulk order delivered in one go. A sudden spike of 100 comments on a video with 300 views creates an anomalous comment-to-view ratio that can look suspicious to both viewers and automated review systems. Starting with 20 to 40 comments and scaling as organic views grow keeps the ratio in a range that reads as natural and reduces the chance of individual account flags triggering a review of the full batch.