nouz and Klar both build a contribution margin statement from net revenue without VAT to EBITDA. nouz is a Shopify profit tracker at a published price per plan, from $55 a month, with no attribution. Klar adds multi-touch attribution and marketing mix modelling, from €200 a month on net revenue, and names brands from €1M a year as its fit.
nouz and Klar answer the same first question, what a store kept after its costs, with the same ladder: net revenue without VAT, then CM1 after product costs, CM2 after logistics and transaction costs, CM3 after marketing, and EBITDA after overhead. nouz is a Shopify profit tracker at a published price per plan with no attribution. Klar, from Klar Insights in Munich, adds multi-touch attribution and marketing mix modelling, prices on the last twelve months of net revenue and names brands from €1M a year as its fit. Klar alternatives covers the wider field, and the comparison table lists every tool nouz is compared with.
nouz is one of the tools compared here; competitor prices were read on 6 Nov 2026.
Choose nouz when
you want the daily P&L after every cost on Shopify, VAT on its own line and every cost dated, at Base $55, Pro $115 and Scale $289 a month (about €49, €99 and €249), whatever your revenue does.
Choose Klar when
your brand is past €1M of net revenue a year and the open question is which channel, campaign or creative drives profit, which needs its pixel, multi-touch attribution and marketing mix modelling, or when you sell on Shopware, WooCommerce or Amazon beside Shopify.
What each costs
Klar's pricing page, checked 6 Nov 2026, has two plans: Core from €200 a month and Core + Attribution from €400, each priced on the last twelve months of net revenue, which its questions define as revenue after returns and taxes. The price is set again every three months on monthly billing, or every twelve on the yearly option, which locks the rate for the year; the monthly option has no minimum term, and there is no setup fee. Its slider gives the price for a revenue, and the table reads it at five points.
| Annual net revenue | nouz | Klar Core | Klar Core + Attribution |
|---|---|---|---|
| €1M | $115 on Pro past 500 orders a month | €200 | €400 |
| €2M | $115 on Pro past 500 orders a month | €225 | €450 |
| €3M | $115 on Pro past 500 orders a month | €320 | €640 |
| €5M | $115 on Pro past 500 orders a month | €450 | €900 |
| €10M | $115 on Pro past 500 orders a month | €850 | €1.700 |
nouz is priced per plan: Base $55, Pro $115 and Scale $289 a month (about €49, €99 and €249). Base covers one store and up to 500 orders a month, and Pro and Scale have no order limit, so a store at €1M of net revenue a year with an average order below about €167 is on Pro, and stays there at €5M, where Klar's slider reads €450 for Core and €900 with attribution. Scale adds stores, not price steps. Every nouz plan has every feature and a 14-day trial, billed through Shopify and cancelled by the month; Klar's 14-day trial starts once the account is set up, with free onboarding.
What a year of each costs
A monthly price says less than a year of it, and the two price their years differently. On monthly billing Klar sets its price again every three months from the last twelve months of net revenue, so a brand that grows pays more within the same year; on the yearly option the rate is locked for twelve months, and the plan can be cancelled once they are over. nouz charges per plan and never looks at revenue: a store past 500 orders a month is on Pro at the same price in its first month and its twelfth.
| Annual net revenue | nouz | Klar Core | Klar Core + Attribution |
|---|---|---|---|
| €1M | $1.380 on Pro (about €1.188) | €2.400 | €4.800 |
| €2M | $1.380 on Pro (about €1.188) | €2.700 | €5.400 |
| €5M | $1.380 on Pro (about €1.188) | €5.400 | €10.800 |
The gap is widest where the attribution suite is chosen: at €5M a year of Core + Attribution is €10.800, which buys a pixel, multi-touch attribution and marketing mix modelling that nouz does not offer at any price. The gap is narrowest for a brand at €1M on Core alone, which is also the size Klar's own page names as its starting point.
What each is built around
| Feature | nouz | Klar |
|---|---|---|
| Built around | the daily P&L after every cost | attribution and insights, with profitability reporting |
| Statement | 34 lines from GMV to EBITDA, CM1 to CM3 between them | profitability reports incl. P&L, CM1 to CM3 and EBITDA |
| VAT | Shopify's own tax lines per order, a Taxes line of its own | a tax rate taken from each product |
| Payment fees | Shopify Payments as Shopify reports it; Klarna, iDEAL and EPS through it as rows of their own; a dated rule per other method | Shopify Payments imported; PayPal and Klarna entered by hand, optionally with date ranges, per country store |
| Cost history | every cost type dated: products, five logistics parts, fees, overhead | date ranges on fee entries; detailed COGS and fulfilment costs |
| Attribution | none; blended MER, POAS and CAC, no pixel | first-party pixel, multi-touch attribution, marketing mix modelling on Core + Attribution |
| Shops | Shopify only; up to 10 stores added up on Scale | Shopify, Shopware, WooCommerce, Amazon and more; several shops and business units |
| Price | per plan, published | on net revenue, from a slider |
The two statements look alike because they follow the same contribution margin logic: Klar's own help centre defines net revenue as gross revenue minus taxes and returns, CM1 as net revenue minus COGS, and CM2 as CM1 minus logistics and transaction costs. Where they differ is what sits on top. Klar builds measurement there: a first-party pixel, multi-touch attribution, marketing mix modelling and incrementality, which is what Core + Attribution adds. nouz builds a cost engine there instead, with no pixel and no attribution model, and measures marketing blended, which MER, POAS or ROAS sets out.
Beyond the statement, each builds reports around its own centre. Klar lists, on its pricing page, cohort reports for Meta and TikTok, customer lifetime value, several shops and business units, several currencies with conversion, and uploads for custom marketing costs and overhead. nouz puts eleven Insights tabs around the P&L, among them profit per product down to CM3, returns, marketing, customers, an LTV tab with cohorts and LTV against CAC, and inventory with days of stock left, plus a Forecast of where the month lands and a daily profit email. Both add stores up: Klar across shop systems and business units, nouz across Shopify stores that share a currency.
VAT, payment fees and costs over time
On VAT the two take the rate from different places: its help article on taxes says Klar takes the tax rate from each product in the shop, shipping included. nouz reads the tax Shopify charged on each order line, so an order to another EU country carries the rate Shopify applied for that country, and a refund hands back its own tax on the day of the refund. Both keep VAT out of net revenue and every margin below it. The Shopify profit tracker for EU stores page sets out how nouz handles VAT-inclusive prices, payment methods and packaging fees.
On payment fees, its help article on transaction costs says Klar imports Shopify Payments fees and has PayPal, Klarna and other providers entered by hand, with optional date ranges and a separate entry per country store. nouz takes the fee Shopify reports on each Shopify Payments payment, lists Klarna, iDEAL, EPS and every other method taken through Shopify Payments as a row of its own, and prices other gateways from a rule per payment method. Profitario goes furthest on per-country VAT among the Shopify apps, as nouz vs Profitario sets out.
On costs over time, nouz dates every cost type, which is called effective dating: a product's unit cost, the shipping rate card, pick and pack, packaging, returns handling, packaging EPR, each payment method's fee and each overhead line. A new cost counts from its own day and every earlier order keeps the cost of its day, so last quarter's margins hold still when a supplier raises a price.
Getting started with each
Klar starts with an onboarding: it connects the shop system natively, Shopify, Shopware, Magento, WooCommerce, Centra or Amazon, or any other through its API, its team sets the account up free of charge, and its 14-day trial starts once the account is completely set up. Its App Store listing promises onboarding in minutes rather than months, and its pricing page adds that its data is hosted in Europe, GDPR compliant and ISO 27001 certified.
nouz starts from the Shopify App Store. The first sync imports every order the store has ever taken, so the statement reaches back to the first sale on day one. Product costs come in from Shopify's cost per item where the store has set one, and the rest of the costs are entered in the app, each with the day it starts to count: shipping rates by zone and weight or parcel size, pick and pack, packaging, returns handling, packaging EPR per destination country, payment fees per method and overhead. Every step can be skipped and finished later, a missing cost is flagged instead of counted as zero, and anyone who wants the setup done together can book it: an account manager with one manager call a month comes with Pro.
Moving from Klar to nouz
A brand that moves from Klar for the profit side brings little across by hand. The orders come from Shopify itself, the whole history, refunds and order edits included, and the ad spend from Meta, Google and TikTok once each account is connected. What has to be entered again are the costs, and here the dates matter: enter each one from the day it started to count, not from today, and every past month is priced with the cost of its own days.
What stays in Klar is what nouz does not do: the pixel, the attribution reports and the marketing mix models. A brand that still wants those keeps Klar for them, and one that wanted only the margins does not need them. The fairest test is to run both through one closed month during the trial and set the two statements side by side: CM1, CM2 and CM3 should come out close, and where they do not, the cost that differs is the one to look at first.
Who each is for
Klar answers who it is for in its own questions: it makes sense once a brand does at least €1M in annual net revenue, or is in a high scaling phase and lacks transparency on which marketing and products drive profit. That fits its pricing and its attribution suite. nouz is built for Shopify stores from the first sale, with every feature on Base, and for brands past that size that want the P&L without the measurement suite; Triple Whale alternatives and Polar Analytics alternatives cover the attribution platforms priced on GMV, Polar from the entry price on Polar's App Store listing, and the best Shopify profit tracker apps compares the trackers priced per plan or per order.
Two cases fall outside both descriptions. A Shopify store below €1M that still wants attribution has a choice to make between price and measurement, and Triple Whale's free plan is one way to try a pixel without a term. A brand that sells on Shopware, WooCommerce or Amazon as much as on Shopify needs a tool that reads all of them, which Klar does and nouz, built for Shopify only, does not.
How these facts were read
Klar's prices, terms and fit were read on 6 Nov 2026 in a browser on its pricing page, its slider moved to each revenue in the table; its Shopify listing on Klar Analytics on the Shopify App Store; its VAT and fee handling in its help centre, as linked above. A quote may differ from the slider; the vendor is the authority on its own price. nouz's figures are read from the plans its checkout charges, on nouz's pricing, and each claim about nouz is listed with where to check it on the nouz facts page.