Comparison

Keepa · Price Tracker vs Parallel Exchange

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

Head to head
About

Keepa · Price Tracker

This app provides detailed price history charts for millions of Amazon products, allowing users to spot trends, avoid fake discounts, and find the lowest historical prices. Set alerts for price drops or stock availability to shop smarter and sell better.

Highlights
  • Price history graphs
  • Price drop alerts
  • Availability alerts
  • Product search
  • Barcode scanner
  • Sales rank history
  • International Amazon support
Read full description

Shop smarter. Sell better. Never overpay. Keepa® is the world’s most popular Amazon price tracker. Whether you are a savvy shopper waiting for the perfect deal, or a seller analyzing market trends, Keepa provides the transparency and data you need to make the right decision. Access detailed price history charts for over 7 billion Amazon products directly on your phone. See through fake discounts, spot seasonal trends, and find the lowest historical price in seconds. KEY FEATURES: + Comprehensive Price History Graphs Instant transparency. View detailed charts showing Price history (New, Used, Warehouse Deals), Sales Rank, Buy Box history, and Offer counts. Zoom in to see daily fluctuations or zoom out to view years of data. + Price Drop & Availability Alerts Don't constantly refresh the page. Simply set your desired price, and Keepa will notify you when the price drops or when a product comes back in stock. Ideal for securing the best deals or monitoring competitor inventory. + Global Product Search & Scanner Find what you need instantly. Search specifically for Amazon products or use the built-in barcode scanner to check online prices while you are in a retail store. + Deep Market Insights Go beyond the price tag. Access advanced data including: • Sales Rank History: Gauge product popularity over time. • Buy Box Statistics: See who is winning the sale and at what price. • Offer Counts: Track how many sellers are competing on a listing. • Rating & Review History: Monitor product reputation trends. + International Amazon Support Track prices across the globe. Keepa supports Amazon locales in the US, Germany, UK, France, Italy, Spain, Canada, Japan, India, Mexico, and Brazil. Download Keepa today and master the Amazon marketplace.

About

Parallel Exchange

Connect with local individuals to exchange goods and services without using cash. Discover trading partners, list your offerings, and negotiate deals through in-app messaging. This platform promotes a sustainable, community-focused approach to bartering.

Highlights
  • Local discovery with adjustable radius
  • Smart matching for potential trades
  • User verification and reputation system
  • In-app messaging with quick replies
  • Track environmental impact of trades
Features
Read full description

The Parallel Exchange is a modern bartering marketplace that connects people to trade goods and services without cash. Whether you have skills to share, items to trade, or services to offer, our app makes it easy to find local exchange partners. How It Works: 1. Create your account with email, Apple ID, or Google 2. Set your location to discover trades near you 3. List what you have and what you're looking for 4. Get matched with people who want what you offer 5. Chat, negotiate, and complete your trade Key Features: Local Discovery - Find trading partners in your area using ZIP code-based search. Set your preferred radius from 5 to 100 miles. Smart Matching - Our matchmaking system finds people who want what you have and have what you want. Perfect matches are highlighted so you never miss an opportunity. Trust and Safety - Every user is verified through email, Apple ID, or Google. After each trade, both parties rate each other, building a transparent reputation system with trust badges from New to Power Trader. In-App Messaging - Chat directly with potential trading partners. Use quick reply buttons for faster communication and send trade proposals with multiple items. Eco-Friendly Trading - Every trade you make helps the environment. Track your carbon savings and see your positive impact grow with each exchange. The Parallel Exchange believes in giving more than money. Join a growing community of people who are rediscovering the power of trading, sharing, and connecting locally.

Screenshots

Keepa · Price Tracker4 screens
Parallel Exchange4 screens

Verdict

The call

The clearest difference is ratings volume: Keepa · Price Tracker at 1.5K against Parallel Exchange's 1. Parallel Exchange's advantage is rating (5.0 vs 4.8) and update cadence (every 2 days vs every 4 days). On price, ads, in-app purchases and monetization model 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

Parallel Exchange holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Keepa · Price Tracker has 1.5K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Keepa · Price Tracker ships an update every 4 days, Parallel Exchange every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Keepa · Price Tracker versus Parallel Exchange: the parameters behind the verdict, then further details
ParameterKeepa · Price TrackerParallel Exchange
PriceFreeFree
Rating4.8 (1.5K ratings)5.0 (1 ratings) — better
Positive reviews51.4% of reviews—
Number of ratings1.5K — better1
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size79 MB39 MB
Age rating4+17+
DeveloperKeepa.comMitchell McCain

Customer experience

Keepa · Price Tracker

All ratings1,542 ratings
Positive95.2%
Neutral1.8%
Negative3.0%
Written reviews385 reviews
Positive51.4%
Neutral11.2%
Negative37.4%

Parallel Exchange

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

In-app purchases

None

Keepa · Price Tracker

No in-app purchases

None

Parallel Exchange

No in-app purchases

Questions

Is Keepa · Price Tracker free?
Keepa · Price Tracker is free to download, with no in-app purchases.
Is Parallel Exchange free?
Parallel Exchange is free to download, with no in-app purchases.
Which has better reviews, Keepa · Price Tracker or Parallel Exchange?
Parallel Exchange is rated higher. Keepa · Price Tracker averages 4.8 out of 5 from 1.5K ratings, while Parallel Exchange averages 5.0 from 1 ratings.
Do Keepa · Price Tracker or Parallel Exchange have ads?
Neither Keepa · Price Tracker nor Parallel Exchange shows ads.
Which is updated more often, Keepa · Price Tracker or Parallel Exchange?
Keepa · Price Tracker ships an update every 4 days, and Parallel Exchange every 2 days. Most recently, Keepa · Price Tracker was updated on October 25, 2026 and Parallel Exchange on October 24, 2026.

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