# DaLiIR vs ThermalSight

The clearest difference is update cadence: ThermalSight at every 2 months against DaLiIR's every 8 months. DaLiIR's advantage is iOS requirement (11.0 vs 15.0). 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.

DaLiIR ships an update every 8 months, ThermalSight every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DaLiIR | ThermalSight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 18 MB | 36 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [zhejiang dali technology co.,ltd](https://appshunter.io/developer/329436737) | [Shenzhen Everbest Machinery Industry Co.,Ltd](https://appshunter.io/developer/564470332) |

## What reviewers say

### DaLiIR

[App page](https://appshunter.io/ios/app/daliir/id1079248861)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThermalSight

[App page](https://appshunter.io/ios/app/thermalsight/id6473887919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DaLiIR free?

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

### Is ThermalSight free?

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

### Do DaLiIR or ThermalSight have ads?

Neither DaLiIR nor ThermalSight shows ads.

### Which is updated more often, DaLiIR or ThermalSight?

DaLiIR ships an update every 8 months, and ThermalSight every 2 months. Most recently, DaLiIR was updated on October 26, 2026 and ThermalSight 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.*