4E vs UU.COOL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4E
This platform offers a comprehensive financial derivatives trading experience. It provides diverse trading services and products for both fiat and digital assets, backed by experienced professionals and advanced technology.
- Financial derivatives trading
- Fiat and digital asset trading
- Diverse financial products
- Experienced industry team
- Advanced technological support
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4e Exchange is a globally leading financial derivatives trading platform, offering diverse financial trading services and products. With a team possessing rich industry experience and advanced technological support, 4e Exchange is able to provide users comprehensive solutions for fiat and digital asset trading.
UU.COOL
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The Big Dog Wallet is an encrypted digital wallet based on blockchain technology. me We are committed to building a secure and easy-to-use digital platform for Provide a secure and reliable digital asset environment one-on-one, and help Help them interact with blockchain more easily. -Supported Public Coins * Bitcoin, Ethereum, BNB Smart Chain Polygon Layer2, Arbitrum, zkEVM, and other EVM compatible switches such as Klaytn, Optimism, etc
Screenshots
Verdict
The clearest difference is update cadence: UU.COOL at every 6 days against 4E's every 6 weeks. UU.COOL also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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.
4E ships an update every 6 weeks, UU.COOL every 6 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | 4E | UU.COOL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (17 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 6 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 197 MB | 105 MB |
| Age rating | 17+ | 17+ |
| Developer | 4e | Zhejiang Xueshen Technology Co.,LTD |
In-app purchases
4E
No in-app purchases
UU.COOL
No in-app purchases
