Comparison

Deux par Deux vs PriceBack

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

Head to head
About

Deux par Deux

Shop the latest fashion arrivals from a popular clothing brand. Get exclusive discounts and early access to new collections through app-exclusive notifications. Enjoy a seamless and secure shopping experience with quick checkout.

Highlights
  • Exclusive discounts
  • Early access to collection launches
  • Browse new arrivals
  • App-user-only early access
  • First-to-know notifications
  • Secure and easy checkout
Features
Read full description

Download the Deux par Deux app to access exclusive discounts, early access to collection launches. Everything you love, right at your fingertips. EASY BROWSING Shop the freshest new arrivals across our entire catalog including tops, dresses, loungewear, swimwear, active and more.  EXCLUSIVE ACCESS Be first to know about exclusive offers and launches through first-to-know notifications and app-user-only early access. SECURE CHECKOUT IN A FLASH Tap, swipe, shop and secure your new products in an instant with our super easy checkout.

About

PriceBack

Easily track your Costco purchases within the 30-day price adjustment period. Input product details, purchase dates, and prices to monitor potential savings and receive alerts when prices drop.

Highlights
  • Track Costco.com and warehouse purchases
  • Monitor 30-day price adjustment window
  • View potential refund amounts
  • Save product notes and purchase details
  • Receive price-drop alerts
Features
Read full description

PriceBack helps you organize Costco purchases and spot possible price-adjustment opportunities before the usual 30-day window closes. SCAN OR IMPORT Scan a US Costco warehouse receipt, choose photos or import a PDF. Recognition happens on your iPhone. Digital PDFs use available text, with image recognition when needed. Share a receipt PDF or image from another app to PriceBack, then open Receipts to import it. Manual entry remains available, including for Costco.com purchases. SAVE NOW, REVIEW WHEN NEEDED Keep the receipt and its original pages even when some fields need attention. Clear items with reliable receipt details can be tracked; uncertain items stay out of price matching until verified. Correct item numbers, quantities, discounts, dates and totals without starting a new scan. Confirmed product-name corrections are learned locally and can be cleared. COMPARE RECEIPT PRICES Choose fixed-size items for comparisons. PriceBack looks for newer reports with the same item number, warehouse and currency, and shows the observed difference separately from confirmed savings. Variable-weight items should remain tracking-only. OPTIONAL COMMUNITY ALERTS Enable community alerts with iCloud to receive notifications when another contributor reports a lower price for a matching active purchase. Sharing your own receipt prices is a separate, optional choice. Community records contain structured item and price information, not receipt photos, membership numbers or payment details. PERSONAL PROMOTIONS Import promotional PDFs, images or text you received, then verify item identity, dates, channel and conditions in Savings Match. Discount-only offers do not establish a final selling price or refund amount. Imports stay on your device; there is no automatic mailbox connection. STAY ORGANIZED Use Home, Watchlist, Receipts, Savings and Settings to follow deadlines, update confirmed prices, record adjustments you received and manage notifications. Report inaccurate observations, block contributors and withdraw contributed prices. IMPORTANT LIMITATIONS Coverage depends on users contributing recent comparable receipts. PriceBack does not automatically retrieve Costco's retailer price feed. Reports and recognition can contain errors; notifications may be delayed or disabled. Verify the current price, identical package, promotion conditions and eligibility directly with Costco. A reported difference is not a guaranteed refund. PriceBack is an independent app from Darwich Technologies LLC, not affiliated with or endorsed by Costco Wholesale Corporation. Costco determines eligibility, which can vary by purchase channel, location, item and promotion. Receipt comparisons support US dollar warehouse receipts.

Screenshots

Deux par Deux4 screens
PriceBack4 screens

Verdict

The call

The clearest difference is monetization model: PriceBack at free against Deux par Deux's free with in-app purchases. Deux par Deux's advantage is ratings volume (28 vs 1). On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Deux par Deux against 5.0 for PriceBack. That said, the two scores are not equally well evidenced: Deux par Deux has 28 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Deux par Deux ships an update every 3 weeks, PriceBack fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Deux par Deux versus PriceBack: the parameters behind the verdict, then further details
ParameterDeux par DeuxPriceBack
PriceFreeFree
Rating5.0 (28 ratings)5.0 (1 ratings)
Positive reviews68.8% of reviews—
Number of ratings28 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size84 MB4 MB
Age rating4+4+
DeveloperDeux par DeuxDarwich Technologies LLC

Customer experience

Deux par Deux

All ratings28 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive68.8%
Neutral6.3%
Negative25.0%

PriceBack

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Deux par Deux

No in-app purchases

None

PriceBack

No in-app purchases

Questions

Is Deux par Deux free?
Deux par Deux is free to download, with no in-app purchases.
Is PriceBack free?
PriceBack is free to download, with no in-app purchases.
Which has better reviews, Deux par Deux or PriceBack?
Deux par Deux and PriceBack are both rated 5.0 out of 5 on the App Store, from 28 and 1 ratings respectively.
Do Deux par Deux or PriceBack have ads?
Neither Deux par Deux nor PriceBack shows ads.
Which is updated more often, Deux par Deux or PriceBack?
Deux par Deux ships an update every 3 weeks, and PriceBack fortnightly. Most recently, Deux par Deux was updated on November 3, 2026 and PriceBack on October 31, 2026.

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