CostSonar vs Purple IT PromoLogic
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for CostSonar, Oct 22, 2026 for Purple IT PromoLogic.
The short answer
- CostSonar lists 1 features Purple IT PromoLogic’s listing doesn’t mention, including Custom reports.
Head to head
Starter
- · Cost tracking
- · Multi-product scenario comparison
- · Pricing & promotion testing
- · Profit and margin analysis
- · Save comparison groups
- · Up to 50 tracked products
Growth
- · Everything in Starter
- · Up to 150 tracked products
Pro
- · Everything in Growth
- · Up to 400 tracked products
Unlimited
- · Everything in Pro
- · Unlimited tracked products
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShopify keeps one cost per inventory item. When you change it, the old value is replaced, so earlier margins stop matching. CostSonar records cost changes from its first check and keeps a dated history. It sorts your catalogue into variants selling below cost, variants with no cost set, and variants on a thin margin. Archived and draft products are skipped. Access is read-only. The app never writes to your store.
Purple IT PromoLogic helps merchants understand product profitability using their own cost and pricing data. Track products, manage costs and expenses, and calculate profit and margin. Test discounts, free shipping, coupons, cashback, and other pricing scenarios.
- See the variants selling below cost, biggest loss per unit first
- Get an email when a product that was making money starts losing it
- Keep a dated record of cost changes from your first check
- Find products with no cost set, which profit reports cannot include
- Track Shopify products and variants with their costs in one workspace
- Use existing Shopify cost per item when available
- Calculate product profit and margin using your actual costs
- Test discounts, free shipping, coupons, and cashback before changing prices
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 |  Purple IT PromoLogic | |
|---|---|---|
| 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 | Purple IT PromoLogic | |
|---|---|---|
| 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 | Purple IT PromoLogic | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $5.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Purple IT PromoLogic | |
|---|---|---|
| Shopify category rank | Not enough data | #1509 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Oct 14, 2026 | Sep 23, 2026 |
| Languages | 1 | 1 |
| Developer | Marimon Apps | Purple IT |
FAQ
CostSonar and Purple IT PromoLogic: common questions
- What features does each app list that the other doesn’t?
- CostSonar lists 1 the others don’t mention, such as Custom reports. 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 9, 2026 for CostSonar, Oct 22, 2026 for Purple IT PromoLogic; 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 9, 2026 for CostSonar, Oct 22, 2026 for Purple IT PromoLogic. 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.