Comparison

Sunbath Catalog vs PolyBuys

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

Head to head
About

Sunbath Catalog

Connect with a global community to buy and sell items. List your own inventory, discover what others have available, and communicate directly with users worldwide. Start your free international market experience.

Highlights
  • Connect with global inventory
  • List items for sale
  • Explore items from others
  • Instant chat with buyers/sellers
  • Free worldwide market
Features
Read full description

Sunbath Catalog lets you add up to 25 photos to present anything you want. Create and share your own business page with anyone in the world. Ratings and catalog tools keep your page organized, and a share URL makes it easy to share updates. Register, build your page, and connect instantly with guests. Better visual interfaces for your catalog and chat make everything clearer and easier to use. The navigation bar shrinks as you scroll so more of your content stays visible. Stay instantly in sync with push notifications. Download Sunbath now and start your free business page.

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.

Screenshots

Sunbath Catalog4 screens
PolyBuys4 screens

Verdict

The call

The clearest difference is rating: PolyBuys at 5.0 against Sunbath Catalog's 4.3. PolyBuys also leads on update cadence (daily vs every 2 months) and iOS requirement (15.1 vs 18.0). On price, ratings volume, ads and in-app purchases 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

PolyBuys holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 7 respectively.

UpkeepUpdate frequency

Sunbath Catalog ships an update every 2 months, PolyBuys daily. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Sunbath Catalog versus PolyBuys: the parameters behind the verdict, then further details
ParameterSunbath CatalogPolyBuys
PriceFreeFree
Rating4.3 (6 ratings)5.0 (7 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings67 — better
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size3 MB37 MB
Age rating17+17+
DeveloperFadi AllafTaylor Labs

Customer experience

Sunbath Catalog

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

PolyBuys

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sunbath Catalog

No in-app purchases

None

PolyBuys

No in-app purchases

Questions

Is Sunbath Catalog free?
Sunbath Catalog is free to download, with no in-app purchases.
Is PolyBuys free?
PolyBuys is free to download, with no in-app purchases.
Which has better reviews, Sunbath Catalog or PolyBuys?
PolyBuys is rated higher. Sunbath Catalog averages 4.3 out of 5 from 6 ratings, while PolyBuys averages 5.0 from 7 ratings.
Do Sunbath Catalog or PolyBuys have ads?
Neither Sunbath Catalog nor PolyBuys shows ads.
Which is updated more often, Sunbath Catalog or PolyBuys?
Sunbath Catalog ships an update every 2 months, and PolyBuys daily. Most recently, Sunbath Catalog was updated on October 24, 2026 and PolyBuys on October 24, 2026.

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