# TopInfrared vs LPI Calculator pool

The clearest difference is in-app purchases: LPI Calculator pool at none against TopInfrared's 1. TopInfrared's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TopInfrared sells 1 one-off in-app purchase. LPI Calculator pool asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TopInfrared | LPI Calculator pool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (52 ratings)](https://appshunter.io/ios/app/topinfrared/id6452017744/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 39.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 518 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [geo bel](https://appshunter.io/developer/1741004791) |

## What reviewers say

### TopInfrared

[App page](https://appshunter.io/ios/app/topinfrared/id6452017744)

This thermal imaging camera app provides high-resolution thermal images for precise temperature detection. It's ideal for inspecting insulation, examining electronics, and identifying heat loss with excellent accuracy and sensitivity.

**Highlights:** High-resolution thermal imaging (256x192), Precise temperature detection, Insulation inspection, Circuit board examination, High heat sensitivity (40mk), Low power consumption

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Features | $19.99 | one-time |


### LPI Calculator pool

[App page](https://appshunter.io/ios/app/lpi-calculator-pool/id6796402192)

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

**In-app purchases:** none


## Frequently asked questions

### Is TopInfrared free?

TopInfrared is free to download, with in-app purchases available.

### Is LPI Calculator pool free?

LPI Calculator pool is free to download, with no in-app purchases.

### Do TopInfrared or LPI Calculator pool have ads?

Neither TopInfrared nor LPI Calculator pool shows ads.

### Which is updated more often, TopInfrared or LPI Calculator pool?

TopInfrared ships an update every 3 weeks, and LPI Calculator pool every 3 weeks. Most recently, TopInfrared was updated on November 3, 2026 and LPI Calculator pool on October 31, 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.*