J&B Materials vs Coolina
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J&B Materials
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J&B Materials serves both commercial and residential customers and offers the largest inventory of construction supplies in California. All of our employees pride themselves on being hard working, safe, and professional. Whether you need drywall, insulation, acoustical tile or construction accessories, we've got your jobsite needs covered. The J&B Materials app features include full access to your online account and account pricing, as well as real time inventory and full order tracking.
Coolina
Shop the latest knife collections with exclusive discounts and early access to new launches. Enjoy easy browsing, first-to-know notifications, and a fast, secure checkout process for all your purchases.
- Exclusive discounts
- Early access to launches
- Easy browsing
- First-to-know notifications
- Secure checkout
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Download the Coolina 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. 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.
Screenshots
Verdict
The clearest difference is update cadence: Coolina at monthly against J&B Materials's every 9 months. J&B Materials's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
J&B Materials ships an update every 9 months, Coolina monthly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | J&B Materials | Coolina |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (133 ratings) — better |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | — | 133 — better |
| Update frequency | Every 9 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 56 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Kodaris, Inc | Coolina |
In-app purchases
J&B Materials
No in-app purchases
Coolina
No in-app purchases
