PolyBuys vs ClosetU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Verified Cal Poly student community
- Fast listing creation
- Direct in-app messaging
- Save favorite listings
- Report and block suspicious content
- Campus-exclusive trading
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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.
ClosetU
This app allows students to buy and sell fashion items directly on campus. Easily list your unwanted clothes with photos and price, then browse items posted by other students. Connect with sellers via in-app messaging to arrange meetups and complete transactions securely.
- List clothing items easily
- Browse items by campus area
- In-app messaging
- Student-only verification
- Face-to-face meetups
- User ratings for transactions
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Currently available at Cal Poly SLO only. HOW IT WORKS 1. List what you're not wearing. Photos, size, price, it takes about a minute. 2. Browse what other students have posted on the feed and map, which is filtered by campus area. 3. Message the seller, agree on a time and place, and meet up to hand it over. STUDENTS ONLY Everyone on ClosetU signs up with a .edu email address. It means the people you are browsing are students or alumni from your school rather than strangers from across the county. MEETING UP Every handoff happens face to face with another university student. Browse listings on the map to see what’s available on campus. FEATURES - Campus areas, so you can find pickups near where you already are - In-app messaging, so you don't hand out your phone number - Report and block on every listing and every profile - Saved listings, so you can come back to something later - Ratings on completed swaps, so you can see who follows through CONTACT US If something is broken or you have an idea, email support@closetu.app and it goes straight to a person. This app is made by a cal poly student for cal poly! If you’re from another school and want to use ClosetU, message us at support@closetu.app to join the waitlist.
Screenshots
Verdict
The clearest difference is update cadence: PolyBuys at daily against ClosetU's every 4 days. On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for PolyBuys against 5.0 for ClosetU. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
PolyBuys ships an update daily, ClosetU every 4 days. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.
| Parameter | PolyBuys | ClosetU |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Daily — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 37 MB | 54 MB |
| Age rating | 17+ | 4+ |
| Developer | Taylor Labs, LLC | Hailey Morgan |
Customer experience
PolyBuys
ClosetU
In-app purchases
PolyBuys
No in-app purchases
ClosetU
No in-app purchases





