Seller Software Price Index: What Amazon and Shopify Tools Cost in September 2026

One of the Amazon research tools I recommend told me its entry plan was $29 a month. The invoice, had I paid monthly, would have said $49, because the pricing page loads with the yearly toggle already switched on, and I only noticed because I was writing both numbers down.

That is the sort of thing this index exists to catch. Every month I go through the pricing page of each tool reviewed on this site, record what it says in USD, and log any change on the review itself. September 2026 is the first published run, covering 81 tools used by Amazon FBA and Shopify sellers.

How was this measured?

I opened each vendor's pricing page and recorded the entry paid price in USD, the monthly price, and the per-month price on annual billing where both are published. Quote-only tools are excluded from every average. Free tiers are counted separately. Each review page carries a changelog, so every price movement is dated and attributable.

The dataset is 81 tools. Of those, 40 publish a paid entry price, 31 offer a free tier, and 10 are quote-only: Feedvisor, Quartile, Pacvue, Describely, Hypotenuse AI, Yuma AI, FastMoss, Teikametrics, Prediko and Algomo. A tool that shows a price only after you enter your revenue or ad spend counts as quote-only.

A few notes on what "entry price" means here. It is the cheapest paid plan, not the plan I would recommend. Where a vendor defaults to the annual toggle, I record both figures and flag the default. Where a page shows GBP to a UK visitor, I switch to a US location and record USD, because that is the only way to compare 81 tools on one line. The full method is on /how-we-test.

What does seller software cost in September 2026?

The median entry price across 40 paid tools is $49 per month. The mean is $112, pulled upward by a small group of advertising platforms priced in the hundreds. The cheapest paid entry point in the set is $10 a month and the most expensive is $799.

Split by platform, the gap is small. The median across 28 paid Shopify tools is $44 a month. Across 27 paid Amazon tools it is $48. Most of the difference comes from the Amazon research and PPC categories rather than any general premium for selling on Amazon. The bigger split is free versus paid: 31 of the 81 tools have a free tier, and most of those are Shopify or general tools.

The category view is where the spread becomes obvious.

Advertising sits on its own. The four PPC tools with published pricing have a median of $500, more than four times the next category. Some of that is justified by what they manage, since a tool handling $20,000 a month of ad spend is priced against that spend. But the entry price for a small seller is steep, and the quote-only vendors in this category (Quartile, Pacvue, Teikametrics, Feedvisor) would almost certainly push the median higher if they published numbers.

Product photo tools are the cheapest paid category, with a median of $15, and email marketing sits at $24. Video looks cheap at the entry level but the range is wide, from $29 to $110, and the credit systems on those tools mean the headline price is rarely what you end up paying. Video and email are also where free tiers are most common, which is why so few tools count as paid in those rows.

How much does annual billing actually save?

Across 73 plan tiers that publish both a monthly and an annual price, the median annual discount is 20% and the mean is 23%. The largest discount I found was 48% on OpusClip Pro. The smallest was 10% on HubSpot Professional.

That 20% median has a mirror image that vendors do not advertise. If the annual price is 20% below monthly, then monthly is 25% above annual. Where the discount is 41%, as it is on three of the Amazon research tools, the monthly price is 69% above the annual figure. The headline number you see on the page is usually the annual one.

And the four smallest discounts in the set.

Three things stand out. OpusClip and Fireflies come close to halving their price for annual commitment, which tells you the monthly price is doing the work of a deterrent. Jungle Scout, ZonGuru and SmartScout land on an identical $49 to $29 structure, which looks like the category norm rather than a coincidence. And Jungle Scout's own Brand Owner tier offers only 13%, so the same vendor discounts its cheap plan heavily and its expensive plan barely at all.

HubSpot at 10%, Jasper at 14% and Otterly at 14% are the outliers at the bottom. None of them needs to discount much, and none of them does.

What should you check on a pricing page before paying?

Three behaviours came up repeatedly this month, and each one changes the number you will actually be charged. Check the billing toggle, check which currency the page has decided you should see, and read the usage limits under the headline plan. None of these are hidden, exactly, but all of them reward a careful reader over a quick one.

The yearly toggle is on by default. More than one pricing page in this set loads with the annual switch selected, so the prices you see first are the per-month cost on a twelve-month commitment. On the tool that caught me, the entry price showed $29 and the monthly figure was $49, a 41% difference. On another the three tiers read $29, $99 and $239 with the switch on and $49, $119 and $299. That is 41% more at the entry level. I only noticed because I was recording both figures for this index. If I had been a seller in a hurry, I would have signed up expecting $29 and been billed $49. Before you enter card details, find the toggle and click it. If there is no toggle, look for small text under the price that says "billed annually".

The currency is geo-locked. Hike SEO shows GBP to UK visitors and USD to US visitors, with no switch on the page. BabyLoveGrowth showed me £99 with £247 struck through, and offered no way to see the USD price. That matters for two reasons. You cannot compare against a competitor priced in dollars without doing the conversion yourself, and you cannot tell whether the GBP figure is a straight conversion or carries a UK premium. If a page shows you pounds, open it through a US VPN or ask support for the USD equivalent before you compare.

Usage-based charges sit above the plan price. Vitals still lists its All-in-One plan at $29.99 a month, the same as before. In 2026 it added charges above included volumes for revenue assists, conversion assists, session recordings and email contacts. Reviews on the Shopify App Store listing from this year report bills of $155.99 and roughly $200 above the plan price in a single month. The plan price did not change. The cost did. On any app with "included" limits, work out what your store would use in a busy month and price that, not the headline.

What changed this month?

Three of the 81 tools moved this month, and none of the moves was dramatic: two small increments and one improved annual discount. Helium 10, which dropped its free plan back in April, held its prices. DataDive, which I expected to move, held steady across all three tiers.

Helium 10 is unchanged since it removed its free plan in April 2026. Its pricing page still shows Platinum at $99 a month on annual billing or $129 monthly, Diamond at $279 on annual ($359 monthly), and Enterprise from $1,499. I include it here because it is the tool most readers ask about, not because anything moved.

Vitals kept the $29.99 plan and added the usage charges described above.

Hike SEO increased its annual discount to 40%. A single site is $149 monthly or $89 on annual billing. That is one of the few changes this month that favours the buyer, provided the buyer commits for a year.

Listing Optimization AI nudged Standard from $95 to $97 and Pro Agency from $495 to $497. Two dollars, but logged.

DataDive is unchanged at $39, $149 and $490 monthly, or $32, $124 and $408 on annual.

What does a realistic tool stack cost?

At list price, entry plans, billed monthly, an Amazon research stack costs $68 a month and a Shopify starter stack costs about $75. A Shopify growth stack with a paid SEO tool comes to roughly $189. An Amazon all-in-one stack is $154 using the free tier of Listing Optimization AI, or $251 if you pay for all three.

These are list prices, so they are the ceiling, not the floor. Reader codes are currently live on 9 of the 81 tools, and the current offers are on /deals. One caveat on the first row: the $29 for SmartScout is the annual-billed figure, so month to month that stack is $88, and the reader code on /deals takes 25% off the first three months either way. The starter stack uses Shopify AI, Tidio, Omnisend and Vitals. The growth stack swaps in Klaviyo on its free tier and Gorgias, and the Amazon stack adds eDesk for support. What the table does show is how quickly a Shopify stack grows once SEO is added. Hike SEO on its own is more than the other three tools in the growth stack combined. On the Amazon side, Helium 10's loss of a free plan means the cheapest all-in-one route now starts at $99 before you add support software.

For my own supplement brand, the honest answer is that I run something closer to the Shopify growth stack, and I check each renewal against this list because the usage charges on Vitals can move month to month.

The index repeats every month with October prices next. If you want it by email when it goes out, sign up at /newsletter.