Comparison

TankooMall vs Costco Refund Check

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TankooMall

Features
Read full description

Professional wholesale commodity mall

About

Costco Refund Check

Automatically track price drops on Costco purchases within 30 days to claim refunds. Supports receipts from photos, scans, or PDFs, and verifies savings against official Costco books. Protects user privacy by processing data on-device.

Highlights
  • Automatic price drop detection
  • Receipt scanning (PDF, photo, scan)
  • Item number matching
  • Past receipt analysis
  • On-device data processing
  • Refund tracking (earned, pending, missed)
Features
Read full description

Costco refunds the difference when something you bought goes on promotion within 30 days of purchase. Most people never check. Costco Refund Check checks for you. Add a receipt from the Costco app (share the PDF), a photo, or a scan of the paper receipt. Every item is matched against Costco's Member-Only Savings book by item number, never by name, and the result tells you exactly what to claim at the membership counter, tax included. PAST RECEIPTS TOO Add receipts from July 2026 onward and see what you could have claimed. The app keeps every savings book it has seen, so an old receipt is checked against the book that was running during its 30-day window. VERIFIED, NOT GUESSED Line items must add up to the printed subtotal, and the sales tax rate is taken from the receipt itself. If a scan doesn't reconcile, the app says so instead of guessing. FREE Add up to 4 receipts a year. See earned, pending, and missed refunds on a receipt-style tape. UNLIMITED Unlimited receipts, automatic re-checks the day a new savings book posts, an alert when something you bought goes on sale, and reminders before each 30-day deadline. One refund pays for months. PRIVATE BY DESIGN Receipts are read on your phone and never uploaded. Only item numbers, prices, and the date are kept. Your membership number and card details are never stored. The savings book is fetched directly from costco.com by your phone; there is no server. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Costco Refund Check is an independent app. Not affiliated with, sponsored by, or endorsed by Costco Wholesale Corporation.

Screenshots

TankooMall3 screens
Costco Refund Check4 screens

Verdict

The call

The clearest difference is in-app purchases: TankooMall at none against Costco Refund Check's 2. TankooMall also leads on iOS requirement (13.0 vs 17.0). Costco Refund Check's advantage is update cadence (every 9 days vs every 5 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Costco Refund Check sells 2 in-app purchases, starting at $2.99 per month. TankooMall asks for nothing beyond the download.

UpkeepUpdate frequency

TankooMall ships an update every 5 months, Costco Refund Check every 9 days. The most recent releases landed on October 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
TankooMall versus Costco Refund Check: the parameters behind the verdict, then further details
ParameterTankooMallCostco Refund Check
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size65 MB1 MB
Age rating17+4+
Developer徐州坦库国际贸易有限公司Yi Yan Tay

In-app purchases

None

TankooMall

No in-app purchases

2 purchases

Costco Refund Check

Subscriptions2
  • Unlimited Monthly$2.991 Month
  • Unlimited Yearly$19.991 Year

Questions

Is TankooMall free?
TankooMall is free to download, with no in-app purchases.
Is Costco Refund Check free?
Costco Refund Check is free to download, with in-app purchases available.
Do TankooMall or Costco Refund Check have ads?
Neither TankooMall nor Costco Refund Check shows ads.
Which is updated more often, TankooMall or Costco Refund Check?
TankooMall ships an update every 5 months, and Costco Refund Check every 9 days. Most recently, TankooMall was updated on October 8, 2026 and Costco Refund Check on October 31, 2026.

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