# NTB Lens vs LoopSign Notification

The clearest difference is update cadence: NTB Lens at monthly against LoopSign Notification's every 6 months. 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.

NTB Lens ships an update monthly, LoopSign Notification every 6 months. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | NTB Lens | LoopSign Notification |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Size | 50 MB | 16 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Norsk Telegrambyrå AS](https://appshunter.io/developer/639999719) | [Loop24 AS](https://appshunter.io/developer/1453500321) |

## What reviewers say

### NTB Lens

[App page](https://appshunter.io/ios/app/ntb-lens/id1511689460)

**Features:** macOS Compatibility

**In-app purchases:** none


### LoopSign Notification

[App page](https://appshunter.io/ios/app/loopsign-notification/id1618168051)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NTB Lens free?

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

### Is LoopSign Notification free?

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

### Do NTB Lens or LoopSign Notification have ads?

Neither NTB Lens nor LoopSign Notification shows ads.

### Which is updated more often, NTB Lens or LoopSign Notification?

NTB Lens ships an update monthly, and LoopSign Notification every 6 months. Most recently, NTB Lens was updated on September 20, 2026 and LoopSign Notification on September 13, 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.*