# NCB Smart OTP vs E

The clearest difference is update cadence: E at every 4 days against NCB Smart OTP's every 18 months. NCB Smart OTP's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

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

NCB Smart OTP ships an update every 18 months, E every 4 days. The most recent releases landed on September 29, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | NCB Smart OTP | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 days** |
| Size | 20 MB | 69 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Citizen Bank](https://appshunter.io/developer/1255731263) | [Nguyen Tran Cao](https://appshunter.io/developer/1076488476) |

## What reviewers say

### NCB Smart OTP

[App page](https://appshunter.io/ios/app/ncb-smart-otp/id1511450778)

**Features:** Vision Pro support

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-buggy/id6805007149)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NCB Smart OTP free?

NCB Smart OTP is free to download, with no in-app purchases.

### Is E free?

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

### Do NCB Smart OTP or E have ads?

Neither NCB Smart OTP nor E shows ads.

### Which is updated more often, NCB Smart OTP or E?

NCB Smart OTP ships an update every 18 months, and E every 4 days. Most recently, NCB Smart OTP was updated on September 29, 2026 and E on October 15, 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.*