BookSirens is one of the most cost-effective ways to get an ARC in front of new readers. What it isn't built for is the list you grow afterwards - the readers you invite yourself, launch after launch. That's the part ArcRoster runs.
| ArcRoster | BookSirens | |
|---|---|---|
| Core model | Your own reviewer roster + accountability | Reader marketplace + ARC delivery |
| Finds new readers for you | No - public sign-up page you share | Yes - its reader community requests your book |
| Reviewer reliability score | Yes - per reader, across every launch | Site-wide average (~75%) published, no score you keep |
| Reviewer history you own | Permanent CRM with tags, notes, CSV export | Readers are found per campaign through its pool |
| Book acceptance | No acceptance review (content terms apply) | Books must pass BookSirens' review |
| Pricing shape | Free plan; $7–39/mo, no per-reader fees | $10 setup + $2 per downloading reader, or $100/year for 2 pen names |
Compiled October 2026 from BookSirens's public pricing and documentation. Features and prices change - verify current details on their site before deciding.
Head to head: Booksprout vs BookSirens · NetGalley vs BookSirens
On BookSirens each campaign starts from its reader pool. In ArcRoster every reader you approve stays in a CRM you own, with their full history, so your second and third launches start from proven readers instead of from zero.
BookSirens publishes a site-wide average of about 75% of downloading readers posting a review, and says individual books range from above 90% to below 50%. ArcRoster tells you the rate for each of your readers, so you can invite your reliable readers first and stop sending copies to people who never review.
Readers you invite yourself through ArcRoster cost nothing extra. Plans are flat - Free, then $7, $17, or $39 a month - however many of your readers download.
If you have no list yet, BookSirens' reader community is real discovery that ArcRoster doesn't provide. Its pay-as-you-go plan only bills for readers who actually download, and you can cap spend with a reader limit.
BookSirens' own published average is around 75%, and in one documented cross-platform romantasy launch it delivered 93% from invited readers and 72% from organic ones - among the best results in that campaign.
ArcRoster is in public beta, and there's a free plan to start on. Bring your reviewers, run your next campaign, and see who actually shows up.
Public beta · Start free, no card needed · Upgrade during the beta and keep 20% off for life