Amazon review tracker: new reviews on your ASINs, on your schedule

Amazon shows a listing’s reviews as a page to read, not a record to keep: the newest sit at the top today, and nothing tells you which ones arrived since you last looked. The AMZ Selling Tools review tracker reads the reviews of the ASINs you choose on a schedule you set — weekly by default — and stores each one with its text, rating, author and date, so a new complaint, a new photo or a new five-star write-up is in your tracker, your sheet or your inbox the week it appears, and the ones you have already read stay out of the way.

What a review line records

A review line is one ASIN in one marketplace — your own listing or anyone else’s — with a mode and a schedule. Every run stores, for each review it brings back:

• The review itself. Title and full text, the star rating, the date, and the reviewer’s display name as Amazon shows it.
• Its badges and votes. Whether it carries the Verified Purchase badge, and how many shoppers found it helpful.
• Its images and variant. The links to any photos the reviewer attached, and the variant they bought — the size, colour or pack the review is about.
• The listing’s rating summary that day. Total ratings, the average and the five-star breakdown, recorded on every run beside the reviews.

Reviews are keyed on Amazon’s own review id, so one that is already stored is never counted twice. The default mode brings back only the reviews that are new since the last check — the first run records the latest 100 as a baseline, and every run after that stops at the first review it already has.

How far back a line can reach is set by Amazon, not by us. Amazon shows about 100 reviews per filter; star and sort filters stack to roughly 500–1,000 per listing, and older reviews are out of reach for every tool. Amazon has capped the signed-in review list at about ten pages per filter since July 2023 and has required a sign-in to read it at all since November 2024, so a listing with thousands of ratings exposes its most recent and most helpful few hundred reviews — to this tool and to every other. What a tracker adds is time: the reviews that arrive from the day you add the line are kept for as long as the line lives.

Your schedule, not ours

Each line has its own schedule: daily, weekly on a weekday you choose, monthly on a day of the month, or manual — a line that runs only when you ask. The default is weekly, on the weekday the line was created. For most listings that is the right cadence: a week of reviews reads in one sitting, and a line that finds nothing new spends one check. Put a launch, a product with a suspected defect or a rival’s new version on daily.

Runs land at a 10-minute slot: pick the time in the marketplace’s own time or yours, or leave it to us and the line takes the least-loaded slot. A schedule change applies from the next occurrence. Check now runs a line on demand, once every 60 seconds per line, and never in place of the scheduled run; when you add a line the app offers to run the first check right away, so the baseline is in place before the first scheduled run.

When a low rating matters more than a cadence, set the alert: an email when a new review arrives at or below the star rating you choose — the ready-made preset is “New 1–2 star review” — sent after the run that records it, with the rating and the review’s title. It is the same alerts system the listing tracker uses, so the rule sits beside your price and Buy Box rules.

Where it works

Twelve Amazon stores: amazon.com, amazon.co.uk, amazon.de, amazon.fr, amazon.it, amazon.es, amazon.pl, amazon.se, amazon.nl, amazon.com.be, amazon.ca and amazon.com.au. Poland, Sweden, the Netherlands and Belgium are covered on the same terms as the big five, and reviews come back as each store publishes them, in its own language.

A review line is one ASIN in one store. Unlike prices, stock and delivery dates, a review list does not follow the shopper’s delivery address in anything we have seen, so the United States and Canada are each a single store here rather than the six cities the listing tracker reads from, and the same ASIN on amazon.com and amazon.co.uk is two lines with two review lists, because each store has its own.

What it costs

Review runs spend checks, the same unit as the listing tracker and keyword lines: $0.00449 per check (5 reviews per check, about $0.90 per 1,000 reviews). Each run spends one check per 5 reviews it brings in, and at least one check. The first run of a new-reviews line records the latest 100 reviews as a baseline (up to 20 checks); after that only reviews newer than the last check are fetched, and a run that finds nothing new uses one check.

A worked example: 20 ASINs on the default weekly line run about 4.3 times a month each, some 86 runs in all. In a quiet month, when most runs find nothing new, that is about 86 checks — $0.39. In a month when every run brings in 10 new reviews it is 172 checks — $0.77. One tracked listing, for comparison, is 30 checks a month at $0.1347, so the quiet month costs less than 3 tracked listings would and the busy one less than 6.

A review line checked weekly that finds nothing new uses about 4 checks a month ($0.02); checked daily it uses 30 checks ($0.1347), the same as one tracked ASIN. There is no per-review plan and no seat pricing; a one-time credit pack at the same $0.00449 per check covers a one-off export.

Every new account starts with a free 30-day trial: 10 checks a day, which review lines draw from too, up to 3 review lines beside the 10-product limit. No card required.

Read next

• How to export Amazon reviews — by hand, as a one-off file, or as a tracker that fetches only what is new.
• Listing monitoring — the title, images and content changes that often sit behind a run of new reviews.
• Competitor tracker — the price, stock and Buy Box of the listing whose reviews you are reading.
• Amazon data in Google Sheets — the Apps Script, with the AMZ Reviews tab beside your listings and keyword ranks.