unspun vs Chắc Chưa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
unspun
Create perfectly fitting jeans with a 3D body scan using your iPhone. Design your custom, made-to-order denim with sustainable materials, eliminating the need for traditional sizing and inventory.
- 3D iPhone body scan for custom fit
- Made-to-order sustainable denim
- Digital model for design
- No traditional sizing required
- Eliminates inventory waste
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Ultra-sustainable & custom-built jeans from a 3D iPhone scan, perfectly designed on your digital model. Made-to-order with sustainable denim. Customized by you. Custom built for you. No sizes. No inventory. No bad threads. No belt required. As featured in Vogue, New York Times, WSJ, HYPEBEAST, Forbes, and Popular Science. One of TIME’s Best Inventions, & Marie Claire’s 2022 Sustainability Award winner.
Chắc Chưa
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Chắc Chưa – Never overpay for groceries again! Ever got home only to realize you paid more than you should have? Chắc Chưa helps you compare food prices across multiple supermarkets and convenience stores near you — before you shop. SMART PRICE COMPARISON Search for any product — eggs, milk, instant noodles, beverages — and instantly see prices from multiple stores side by side. Know where to buy for less. STORES NEAR YOU An integrated map shows supermarkets and convenience stores near your location. Not just cheap — but close too! LATEST PROMOTIONS Daily deals from WinMart, Co.opmart, Bach Hoa Xanh, Lotte Mart, AEON and more. Never miss a great offer. SHOPPING LIST Build your shopping list and estimate total costs at each store. Shop smarter every week. MODERN INTERFACE Supports light and dark mode. Smooth experience on every iPhone. --- Perfect for: Households looking to cut grocery bills Students and office workers buying daily essentials Anyone who wants to shop smarter Available in Vietnamese and English.
Screenshots
Verdict
The clearest difference is update cadence: Chắc Chưa at weekly against unspun's monthly. Chắc Chưa also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
unspun ships an update monthly, Chắc Chưa weekly. Both last shipped on October 24, 2026.
| Parameter | unspun | Chắc Chưa |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (70 ratings) — better | — |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 70 — better | — |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | unspun, Inc. | Nha Nguyen Trong |
In-app purchases
unspun
No in-app purchases
Chắc Chưa
No in-app purchases
