CostBuffer ‑ Supplier Currency vs Defterdar: Profit & Cost
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 11, 2026 for CostBuffer, Oct 20, 2026 for Defterdar.
The short answer
- Only CostBuffer lists a free plan. Paid plans start at $9.99/month for CostBuffer and $14.90/month for Defterdar.
- Defterdar lists 11 features CostBuffer’s listing doesn’t mention, including Cash flow, Expense tracking, Historical data import.
Head to head
Free
- · All supplier currencies
- · Daily official exchange rates
- · Up to 25 product variants
CostBuffer
- · Daily official exchange rates
- · Today's, 7, 30 or 90-day rates
- · Unlimited products and currencies
Defterdar
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShopify keeps each product's COGS as one number in your store's currency. When you buy in yuan, euros or dong, that number goes stale as exchange rates move, and your profit reports drift with it. CostBuffer stores each supplier's invoice amount in their currency, converts it with official exchange rates and updates Shopify's COGS field.
Revenue isn't what you earn. Defterdar reads your Shopify orders automatically and shows what's left after cost of goods, shipping, payment fees, refunds and ad spend — in one dashboard. Track profit per product, landed cost for imports, bundle (BOM) costs, fixed costs spread day by day, cash conversion cycle and a 13-week cash projection. Every number has its definition and formula written next to it.
- Enter supplier invoice amounts in their currency; Shopify's COGS is set for you
- Daily official rates; COGS updates when a rate moves past your threshold
- Use today's rate or a 7, 30 or 90-day mean to smooth out swings
- Blend each purchase with stock on hand, each at its own day's rate
- Profit ladder from revenue down to net profit, compared with the prior period
- Product profitability and ABC analysis
- Landed cost: freight and customs allocated to purchased items; bundle costs
- Refunds deducted on the day the money was returned
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 | CostBuffer |  Defterdar |
|---|---|---|
| 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 | CostBuffer | Defterdar |
|---|---|---|
| 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 | CostBuffer | Defterdar |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9.99/month(ahead) | $14.90/month |
| Longest free trial | 14 days | 14 days |
| Plans listed | 2 | 1 |
Listing
| Measure | CostBuffer | Defterdar |
|---|---|---|
| Shopify category rank | #359 | #327(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Oct 21, 2026 | Oct 16, 2026 |
| Languages | 1 | 2 |
| Developer | Triple U Solutions | Pirkeres LTD |
FAQ
CostBuffer and Defterdar: common questions
- Is CostBuffer or Defterdar cheaper?
- Only CostBuffer lists a free plan. Paid plans start at $9.99/month for CostBuffer and $14.90/month for Defterdar. 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?
- CostBuffer lists 1 the others don’t mention, such as Multi-currency. Defterdar lists 11 the others don’t mention, such as Cash flow, Expense tracking, Historical data import, Income and balance. 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 11, 2026 for CostBuffer, Oct 20, 2026 for Defterdar; 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 11, 2026 for CostBuffer, Oct 20, 2026 for Defterdar. 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.