ClearUnit · Price Per Unit vs Spark Kit: Price Calculator
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 6, 2026 for ClearUnit · Price Per Unit, Oct 22, 2026 for Spark Kit.
The short answer
- Only ClearUnit · Price Per Unit lists a free plan. Paid plans start at $6.99/month for ClearUnit · Price Per Unit and $14.99/month for Spark Kit.
- Spark Kit lists 3 features ClearUnit · Price Per Unit’s listing doesn’t mention, including Custom pricing, Pricing rules, Tags.
Head to head
Free
- · Storefront credit included
- · Unit price on product pages
- · Up to 5 products · m², kg, and piece
Basic
- · All 24 unit types
- · Custom label format
- · No storefront credit
- · Unlimited products
Pro
- · Cart rounds up to packs
- · Coverage calculator
- · Everything in Basic
- · Priority email support
Standard
- · All calculator templates
- · Apply store-wide or to specific products
- · Ask for changes in plain words
- · Calculators built from your products
- · Custom formulas per product
- · Live calculator on product pages
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShoppers cannot compare boxes, rolls, or bags from the pack price alone. ClearUnit shows the price per unit under the product price. You choose the unit and how much is in each pack, box, roll, or bag. A $40 box that covers 2 m² shows $20.00 / m². The rate updates when the variant changes. On Pro, a shopper enters how much they need. ClearUnit rounds up to whole packs, shows the total, and sets the cart quantity.
Sell products priced by size, not fixed variants. Spark Kit adds a price calculator to your product pages: shoppers enter width, length, or area, see a live price, and add the exact amount to cart, so checkout always matches. Spark Kit reads your products, suggests the ones you sell by size, and builds a calculator for each kind, from blinds and fabric by the yard to flooring and tile by the box.
- Show unit rate per m², kg, liter, or any of 22 unit types on product pages
- Quantity calculator: customers enter how much they need and see totals instantly
- Works with all variants — unit rate updates automatically when customers switch
- Customizable label format — change how the unit rate text appears on your store
- Add a measurement calculator to any product page, no code needed
- Shoppers enter dimensions and instantly see how much to buy
- Build a custom calculation formula for each product
- Apply one calculator store-wide or to specific products
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  ClearUnit · Price Per Unit |  Spark Kit |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | ClearUnit · Price Per Unit | Spark Kit |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | ClearUnit · Price Per Unit | Spark Kit |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $6.99/month(ahead) | $14.99/month |
| Longest free trial | 7 days | 14 days |
| Plans listed | 3 | 1 |
Listing
| Measure | ClearUnit · Price Per Unit | Spark Kit |
|---|---|---|
| Shopify category rank | #437 | #166 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 4, 2026 | Jun 16, 2026 |
| Languages | 1 | 1 |
| Developer | Apps-Alchemy | Triember Studios |
FAQ
ClearUnit · Price Per Unit and Spark Kit: common questions
- Is ClearUnit · Price Per Unit or Spark Kit cheaper?
- Only ClearUnit · Price Per Unit lists a free plan. Paid plans start at $6.99/month for ClearUnit · Price Per Unit and $14.99/month for Spark Kit. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Spark Kit lists 3 the others don’t mention, such as Custom pricing, Pricing rules, Tags. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 6, 2026 for ClearUnit · Price Per Unit, Oct 22, 2026 for Spark Kit; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 6, 2026 for ClearUnit · Price Per Unit, Oct 22, 2026 for Spark Kit. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.