First, the honest part
A BookBub Featured Deal is not overrated. It reaches millions of opted-in readers segmented by genre, and the list has been trained over years to expect a genuinely good discounted book each morning. That combination — scale plus curation — is why a Featured Deal can move a title into the top of a category for days, and why nothing else on this page does the same thing on its own.
It is also editorially selected and heavily oversubscribed. Rejection is the normal outcome, not a judgement on your book. Cover quality, review count and rating, fit with the specific genre list, the discount offered and plain slot scarcity all decide it. Authors who eventually get accepted usually got there by building reviews, refreshing the cover and reapplying on a different list or date — not by finding a trick.
The promo sites authors actually rebook
These are the sites that keep appearing on repeat bookings rather than one-time experiments. Rate cards, genre lists and availability change constantly, so treat this as a map of what each one is for and check current prices and open dates on the site itself.
| Site | Run by | What it commonly runs | Best for |
|---|---|---|---|
| Freebooksy | Written Word Media | Features for free ebooks, sent to genre-segmented reader lists. | A permafree or temporarily free first-in-series with the rest of the series ready to buy. |
| Bargain Booksy | Written Word Media | Features for discounted ebooks, same genre-list structure as Freebooksy. | Paid price promos where you want royalty on the promoted book itself. |
| Red Feather Romance | Written Word Media | Romance-only deal features. | Romance authors who want a list with no genre bleed. |
| Fussy Librarian | Independent | Daily genre emails carrying both free and discounted titles, with fine-grained genre and content filtering. | Broad genre coverage and a comparatively accessible acceptance bar. |
| Ereader News Today (ENT) | Independent | Free and bargain features to a long-established, largely US list. | Romance and thriller titles wanting US reach outside BookBub. |
| Robin Reads | Independent | Curated daily deals to a smaller but notably engaged list. | Authors who would rather have a responsive list than a large one. |
| BookSends | Independent | Daily bargain and free deals across a wide genre spread. | Filling out a stack around an anchor promo. |
| Book Barbarian | Written Word Media | Science fiction and fantasy only. | SFF, where general lists dilute badly. |
Two structural notes. Written Word Media runs several of these as one family, so a single account can book across Freebooksy, Bargain Booksy, Red Feather Romance and Book Barbarian — convenient, but it also means their lists overlap more with each other than with the independents. And every site above has its own submission window and its own rules about how long a book must already be free or discounted, so read the fine print before you commit the date.
How to stack them
The mistake that wastes the most money is spreading five small promos across five separate weeks. Each one produces a bump too small to move category rank, the rank decays before the next one lands, and you end the month having paid five times for nothing cumulative.
- Pick an anchor. The largest promo you were accepted for goes first — usually Freebooksy or Bargain Booksy.
- Stack two to three smaller sites on the same day or the next. Concentrated traffic moves category rank; rank moves organic visibility; organic visibility is the part you did not pay for.
- Point it at a series entry. A promo on a standalone buys you units. A promo on book one of a finished series buys you read-through, which is where the money actually is.
- Run your own list and swaps the same week. Your newsletter and any swap partners cost nothing and add to the same spike.
- Check the price has propagated everywhere on the morning of. A book still showing full price in one marketplace is the most common way a paid promo is thrown away.
How to tell whether a promo actually worked
Downloads are not the answer. A free run that produces 3,000 downloads and no paid lift reached the wrong readers, and knowing that is worth more than the downloads were.
- Set the baseline first. Record paid units and KENP page reads per title for the 30 days before the promo. Without this you cannot say anything afterwards.
- Measure the 7–14 days after, not the day itself. Free days and discount days show the spike; the fortnight afterwards shows whether the readers stayed.
- Measure the next book in the series separately. Read-through is the real return on a free-first-in-series promo.
- Do it per marketplace. A US gain hiding a UK collapse looks like a flat result.
- Put the spend next to the royalty. Cost per paid unit acquired, and whether series read-through covered it. A promo can lose money on book one and still be the best spend of your year.
Almost nobody does this, and the reason is mundane: it is a fiddly spreadsheet that has to be maintained across titles, marketplaces and months. By the fourth title the spreadsheet becomes the job, so it gets abandoned, and the following year the same sites get booked on the same instinct with no evidence behind it. See the KDP reports guide for which report to pull each number from.
Perfect Year HQ is not a promo site. It is the plan that runs them.
You still book Freebooksy, Fussy Librarian or a Featured Deal yourself. Perfect Year HQ sequences them across your twelve months around your real writing pace, runs your swap weeks for you through Swap Admin, checks every delivery link before a promo goes out, and the Money tab syncs your actual KDP units, page reads and royalties every hour so promo ROI is a number you can read rather than a feeling.
See the Perfect Year →A sane yearly rhythm
Most working authors land on something close to this once they stop buying promos reactively.
| When | What runs | Why |
|---|---|---|
| Launch month | Newsletter, swaps and your own list. Paid promos held back. | New releases do not need discounting; you are protecting full-price launch royalties. |
| 6–10 weeks after launch | First stacked promo on the series opener. | Pulls new readers into book one while the new release is still the payoff at the end. |
| Quiet quarter | The big stack — anchor plus two or three — on a free or deep discount. | Buys visibility in a month with nothing else happening, and re-warms the whole backlist. |
| Seasonal peak in your genre | Genre-specific list (Red Feather Romance, Book Barbarian) plus swaps. | Targeted reach when the readers are already shopping. |
| Every month | Read last month's promo against the 30-day baseline. | This is the step that turns a promo budget into a promo strategy. |
The author marketing plan template lays this out month by month, and the launch timeline covers where promos sit relative to a release date.
Questions authors ask
What is the best alternative to BookBub?
There is no single one. BookBub Featured Deals work because of list size and editorial curation, and no other site matches both. In practice authors replace one Featured Deal with a stack of two to four smaller promos booked within a day or two of each other - commonly Freebooksy or Bargain Booksy alongside Fussy Librarian, Ereader News Today, Robin Reads or BookSends - so the traffic arrives as one spike rather than a series of small bumps.
Why was my BookBub Featured Deal rejected?
Featured Deals are editorially curated and heavily oversubscribed, so rejection is the normal outcome rather than a verdict on your book. The usual factors are cover quality, review count and average rating, how well the book fits the genre list you applied for, the discount you offered, and simple slot scarcity on the date you wanted. Reapplying later with more reviews, a refreshed cover or a different genre list and date is standard practice.
Are BookBub Ads the same as a Featured Deal?
No. BookBub Ads are a self-serve cost-per-click product you can buy at any time without approval, targeted at readers who follow comparable authors. Featured Deals are curated placements in BookBub's daily deal emails and must be accepted. Ads are always available and always optional; a Featured Deal is the thing that is hard to get.
How much do book promo sites cost?
Prices vary by site, genre list and whether the book is free or discounted, and the rate cards change - always check the current price on the site itself rather than a figure quoted in an article. The number that matters is not the sticker price but the cost per paid unit and the read-through into the next book in the series in the two weeks after the promo.
How far ahead should I book a book promotion?
Three to six weeks is typical, and popular genres and dates go earlier. Book the anchor promo first, then fill the same day or the following day with the smaller sites so the traffic concentrates. Leave time to confirm the book is actually free or discounted in every marketplace on the day - a price that has not propagated is the single most common way a paid promo is wasted.