# 三井住友銀行アプリ vs bitFlyer

The clearest difference is rating: 三井住友銀行アプリ at 4.8 against bitFlyer's 4.3. 三井住友銀行アプリ also leads on ratings volume (2.2K vs 282) and iOS requirement (15.0 vs 17.0). bitFlyer's advantage is update cadence (every 9 days vs monthly). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

三井住友銀行アプリ holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: 三井住友銀行アプリ has 2.2K ratings behind it against 282, so its average is the more settled of the two. Written reviews complicate that: 30% of 三井住友銀行アプリ's written reviews are positive against 33% of bitFlyer's, so the app with the better star average is not the one people write more warmly about.

三井住友銀行アプリ ships an update monthly, bitFlyer every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | 三井住友銀行アプリ | bitFlyer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.2K ratings)](https://appshunter.io/ios/app/id594457652/reviews)** | [4.3 (282 ratings)](https://appshunter.io/ios/app/bitflyer-trade-crypto/id1164758997/reviews) |
| Number of ratings | **2.2K** | 282 |
| Positive reviews | 30.0% of reviews | **32.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 240 MB | 72 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Sumitomo Mitsui Banking Corporation](https://appshunter.io/developer/473879498) | [bitFlyer, Inc.](https://appshunter.io/developer/849472648) |

## What reviewers say

### 三井住友銀行アプリ

[App page](https://appshunter.io/ios/app/id594457652)

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Straightforward banking
- 💡 Potential for English translation improvements

**What reviewers complain about**

- 🐛 English translation issues
- 🔒 Overly complex security measures
- 🔒 Weak login credentials
- 💸 Fees for transfers
- 🕰️ Slow transaction processing

**Reported bugs**

- Login issues after app updates
- Inability to submit required ID photos

**Requested features**

- Improve English translation across the app
- Streamline security measures
- Strengthen login credentials
- Eliminate or reduce transfer fees
- Faster transaction processing


### bitFlyer

[App page](https://appshunter.io/ios/app/bitflyer-trade-crypto/id1164758997)

Easily buy, sell, and invest in Bitcoin, Ethereum, and other cryptocurrencies on a secure global exchange. Track your portfolio performance, stay updated on market movements, and send/receive crypto effortlessly. Start investing with as little as $1.

**Highlights:** Buy Bitcoin, Ethereum, Litecoin, Bitcoin Cash, Recurring Buy investments, Portfolio performance tracking, Real-time market data, Send and receive cryptocurrency, Secure cold storage

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🔒 Strong security measures
- 👍 User-friendly interface
- 🚀 Fast transactions and deposits
- 💡 Low minimum investment (1 yen)
- 💡 Automatic recurring investments

**What reviewers complain about**

- 💸 High fees (spreads, transaction)
- 😠 Poor customer support (slow, unresponsive, AI only)
- 🐛 App errors and crashes
- 🔒 Account freezes and closures (especially for foreigners)
- 📉 Unfavorable exchange rates (spreads)

**Reported bugs**

- App not opening/crashing
- Errors during trading/order execution
- Deposit/withdrawal delays
- Account freezing issues
- Verification process delays/failures

**Requested features**

- Dark mode option
- More altcoin listings (SUI, APT)
- Improved UI for individual asset tracking
- Notification for trade execution
- Display of invested amount per asset


## Frequently asked questions

### Is 三井住友銀行アプリ free?

三井住友銀行アプリ is free to download, with no in-app purchases.

### Is bitFlyer free?

bitFlyer is free to download, with no in-app purchases.

### Which has better reviews, 三井住友銀行アプリ or bitFlyer?

三井住友銀行アプリ is rated higher. 三井住友銀行アプリ averages 4.8 out of 5 from 2.2K ratings, while bitFlyer averages 4.3 from 282 ratings.

### Do 三井住友銀行アプリ or bitFlyer have ads?

Neither 三井住友銀行アプリ nor bitFlyer shows ads.

### Which is updated more often, 三井住友銀行アプリ or bitFlyer?

三井住友銀行アプリ ships an update monthly, and bitFlyer every 9 days. Most recently, 三井住友銀行アプリ was updated on October 24, 2026 and bitFlyer on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*