# Inspection SYS vs LiFePO4

Inspection SYS and LiFePO4 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Inspection SYS ships an update every 3 months, LiFePO4 every 2 months. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Inspection SYS | LiFePO4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 220 MB | 42 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [深圳市赛德爱电子有限公司/](https://appshunter.io/developer/1762773666) | [Tuoxin'an New Energy (Guangdong) Co.,Ltd.](https://appshunter.io/developer/1778143135) |

## What reviewers say

### Inspection SYS

[App page](https://appshunter.io/ios/app/inspection-sys/id6593684773)

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

**In-app purchases:** none


### LiFePO4

[App page](https://appshunter.io/ios/app/lifepo4/id6737817655)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Inspection SYS free?

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

### Is LiFePO4 free?

LiFePO4 is free to download, with no in-app purchases.

### Do Inspection SYS or LiFePO4 have ads?

Neither Inspection SYS nor LiFePO4 shows ads.

### Which is updated more often, Inspection SYS or LiFePO4?

Inspection SYS ships an update every 3 months, and LiFePO4 every 2 months. Most recently, Inspection SYS was updated on October 3, 2026 and LiFePO4 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.*