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Comparison

Booksprout vs BookSirens

Both put your advance copy in front of readers who review. Booksprout charges a flat monthly fee; BookSirens charges for each reader it finds. Which one costs less, and which returns more reviews, depends on how often you publish. Here are the numbers from both pricing pages.

BooksproutBookSirensArcRoster
Best forFrequent releases on a flat monthly feePaying only for the readers it finds youKeeping and scoring the readers you already have
Price$9, $19, $29 or $59 a month; 17% off billed yearly$10 per ARC + $2 per reader it finds, or $100 a year for unlimited ARCs on 2 pen namesFree plan; $7, $17 or $39 a month, no per-reader fees
Free optionFree account to set up and build a following; campaigns need a paid planNo subscription needed; readers you invite yourself are not billedFree plan: 1 pen name, 1 campaign, 50 reviewers
Limits1, 3 or 10 active campaigns; 25, 50 or unlimited copies per campaignUnlimited readers; you can set a reader cap to control spendSet by plan, not by campaign
Finds new readers for youYes - its reviewer communityYes - its reader community, promoted for 3 monthsNo - you share a sign-up page with your own audience
Book approvalNo guarantee of how many reviewers joinEach book must be accepted before it is listedNo acceptance review (content terms apply)
Review rate the vendor statesAbout 8 reviews for every 10 participantsAbout 75% of downloads, averaged across all booksShows your own rate, per reader and per campaign
Follow-up on missing reviewsAutomatic reminders; acts against problem reviewersReview reminders; tracks whether each reader reviewedReminders, plus a reliability score that carries to your next launch
Refunds and trialsNo free trial; 30-day money-back guaranteePay as you go; cancel any timeFree plan, no card needed

Comparison compiled November 2026 from Booksprout's pricing page and BookSirens' pricing page. Review rates are each vendor's own published figure. Prices and features change - check both pages before you pay.

The short version

Subscription or pay per reader.

Pick Booksprout if you release several books a year. One flat fee covers every campaign, reminders go out on their own, and the cost per review falls with each extra reader. The $9 plan allows one active campaign with 25 copies; $19 allows three with 50 copies each.

Pick BookSirens if you publish less often, or want to pay only for results. You pay $10 for the listing and $2 for each reader it finds, you can cap the number of readers, and readers you invite yourself are free. Your book has to be accepted first.

Add ArcRoster when the readers you found start to matter more than the platform you found them on. It keeps one roster across every launch and shows which readers review and which only download, so the next campaign starts with the reliable ones.

What it costs

The same 50 readers, priced both ways.

On BookSirens' pay-as-you-go plan, 50 readers found by the platform cost $110: $10 for the listing plus 50 × $2. If 20 of those 50 come from your own invitation link, the bill drops to $70, because invited readers are not charged.

On Booksprout, 50 copies fit inside one campaign on the $19 plan. Run that campaign for one month and cancel, and it costs $19. Keep the subscription for a year of launches and it costs $228, or about $189 billed yearly.

So Booksprout is cheaper per campaign, and BookSirens is cheaper when campaigns are rare or small. Neither price buys reviews. Both platforms say plainly that they cannot guarantee how many readers will join or how many will post, which is why the review rate matters more than the fee. We compare the measured rates in what the data says about ARC review rates, look at Booksprout on its own in our Booksprout review for authors, and cover five more platforms in ARC sites compared.

Questions

Good to know.

Is Booksprout or BookSirens cheaper?
It depends on how often you publish. For one book, BookSirens' pay-as-you-go plan is $10 plus $2 for each reader it finds, so 50 readers cost $110, and readers you invite yourself cost nothing. Booksprout is a subscription: $19 a month covers three active campaigns with up to 50 copies each, so one month at 50 copies costs $19. If you release several books a year, BookSirens' $100-a-year Author plan (unlimited ARCs for two pen names) and Booksprout's yearly billing (17% off) are the figures to compare. Prices checked on both pricing pages in November 2026.
Which has the better review rate, Booksprout or BookSirens?
Each publishes its own figure and they are not measured the same way. Booksprout says authors can expect about 8 reviews for every 10 participants. BookSirens says about 75% of downloads result in a review, averaged across all books, and that it cannot predict a specific book. In the one published campaign we know of that ran both at once (a romantasy launch), BookSirens returned 72% from readers it found and 93% from invited readers; Booksprout returned 38.4% and 50%. That is one book in one genre, so treat it as a data point, not a ranking.
Is Booksprout worth it?
It suits authors who release often. The fee is flat, reminders are automatic, and Booksprout says it follows up with participants and acts against problem reviewers. It suits you less if you publish once a year, because you pay monthly whether or not a campaign is running, and Booksprout does not guarantee how many reviewers will join a campaign. It offers no free trial but does have a 30-day money-back guarantee.
How much does BookSirens cost?
As of November 2026, the Promote plan is $10 per ARC plus $2 for each reader BookSirens finds who downloads the book, promoted for three months. The Author plan is $100 a year for unlimited ARCs across two pen names with no per-reader fee. Readers you invite with your own link are not billed on either plan. Books have to be accepted first.
Can I use Booksprout and BookSirens together?
Yes. Neither asks for exclusivity, and running both reaches two different reader pools. The cost is that your results end up in two dashboards, and a reader who never reviewed on one can still claim a copy on the other.
Where does ArcRoster fit?
ArcRoster is not a third reader marketplace. It is where you keep the readers worth keeping, wherever you found them: one roster you own, a reliability score for each reader based on how often they actually review, and reminders for the ones who have not posted yet. Many authors find readers on Booksprout or BookSirens and then invite the reliable ones to their own ArcRoster sign-up page for the next launch. There is a free plan, and paid plans are $7, $17 or $39 a month, with 20% off for life if you upgrade during the public beta.
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