Comparison

PolyBuys vs Bartrly

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

Head to head
About

PolyBuys

A secure student marketplace exclusively for Cal Poly, San Luis Obispo. Verified users can easily buy and sell items like textbooks, furniture, and electronics directly within the app. Enjoy a safe, campus-focused trading experience with direct messaging and saved listings.

Highlights
  • Verified Cal Poly student community
  • Fast listing creation
  • Direct in-app messaging
  • Save favorite listings
  • Report and block suspicious content
  • Campus-exclusive trading
Features
Read full description

PolyBuys is the student marketplace built for Cal Poly, San Luis Obispo. Every user is verified with a Cal Poly email, so you always know you're dealing with a real student on campus. Buy and sell textbooks, event tickets, dorm furniture, electronics, clothing, and anything else students need. Browse listings, message sellers directly, and close deals — all within a single app designed around how students actually trade. What makes PolyBuys different: • Verified students only - sign in with your Cal Poly email to join a trusted, campus-only community • Built for speed - post a listing with photos, set your price, and publish in under a minute • Direct messaging - chat with buyers and sellers without sharing your phone number or social media • Save listings - bookmark items you're interested in and come back to them later • Report and block - flag suspicious content and keep the marketplace safe for everyone No ads. No processing fees. No strangers from the internet. Just Mustangs buying and selling to each other. Built by Cal Poly students, for Cal Poly students.

About

Bartrly

Features
Read full description

We're all tired of it. The sellers who never respond. The lowball offers. The listings that have been up for six months and going nowhere. The marketplace experience is broken — and everyone knows it. Buy, sell, or trade anything with real people near you. No middlemen. No games. Just people who actually want to make a deal. TRADE ANYTHING Have a guitar collecting dust? Trade it for a bike. Upgrading your furniture? Swap it for something you actually want. Bartrly makes trading as easy as sending a text. BUY & SELL LOCALLY List in under a minute and connect with motivated buyers in your area. If someone messages you on Bartrly, they mean it. MOTIVATED PEOPLE ONLY Bartrly is built for people who are ready to move. Buyers who want to buy. Sellers who want to sell. Traders who want to trade. If you're serious about it, you'll fit right in. A better way to marketplace. That's Bartrly.

Screenshots

PolyBuys4 screens
Bartrly4 screens

Verdict

The call

PolyBuys and Bartrly are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

ScorecardNo meaningful differences
PolyBuys versus Bartrly: the parameters behind the verdict, then further details
ParameterPolyBuysBartrly
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyDailyDaily
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size37 MB45 MB
Age rating17+12+
DeveloperTaylor LabsMarkova Labs LLC

In-app purchases

None

PolyBuys

No in-app purchases

None

Bartrly

No in-app purchases

Questions

Is PolyBuys free?
PolyBuys is free to download, with no in-app purchases.
Is Bartrly free?
Bartrly is free to download, with no in-app purchases.
Do PolyBuys or Bartrly have ads?
Neither PolyBuys nor Bartrly shows ads.
Which is updated more often, PolyBuys or Bartrly?
PolyBuys ships an update daily, and Bartrly daily. Most recently, PolyBuys was updated on October 2, 2026 and Bartrly on September 30, 2026.

Other comparisons