# IR vs 听无界

The clearest difference is iOS requirement: IR at 8.0 against 听无界's 12.0. On price, update cadence, 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.

IR ships an update every 4 months, 听无界 every 2 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | IR | 听无界 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/ir-tracker-iii/id1527965840/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 10 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [zhejiang dali technology co.,ltd](https://appshunter.io/developer/329436737) | [深圳沃奇互娱科技有限公司](https://appshunter.io/developer/1722913949) |

## What reviewers say

### IR

[App page](https://appshunter.io/ios/app/ir-tracker-iii/id1527965840)

This handheld monocular uses infrared thermal imaging to provide clear vision in low light or complete darkness. Its compact and rugged design is ideal for outdoor activities like searching, rescuing, and hiking.

**Highlights:** Infrared thermal imaging, Handheld monocular design, Professional display eyepiece, Low visibility operation, Compact and rugged construction, Outdoor use suitability

**In-app purchases:** none


### 听无界

[App page](https://appshunter.io/ios/app/id6478475777)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IR free?

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

### Is 听无界 free?

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

### Do IR or 听无界 have ads?

Neither IR nor 听无界 shows ads.

### Which is updated more often, IR or 听无界?

IR ships an update every 4 months, and 听无界 every 2 months. Most recently, IR was updated on October 7, 2026 and 听无界 on October 25, 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.*