# LaserPowerMeter vs KCSDI

The clearest difference is update cadence: KCSDI at every 3 weeks against LaserPowerMeter's every 13 months. LaserPowerMeter's advantage is iOS requirement (12.0 vs 15.5). 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.

LaserPowerMeter ships an update every 13 months, KCSDI every 3 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | LaserPowerMeter | KCSDI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Size | 29 MB | 31 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [爱新 周](https://appshunter.io/developer/1581769206) | [Chengdu KeChuang Institute of Science and Culture](https://appshunter.io/developer/1690764978) |

## What reviewers say

### LaserPowerMeter

[App page](https://appshunter.io/ios/app/laserpowermeter/id6472035763)

**Features:** macOS Compatibility

**In-app purchases:** none


### KCSDI

[App page](https://appshunter.io/ios/app/kcsdi/id6667098118)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LaserPowerMeter free?

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

### Is KCSDI free?

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

### Do LaserPowerMeter or KCSDI have ads?

Neither LaserPowerMeter nor KCSDI shows ads.

### Which is updated more often, LaserPowerMeter or KCSDI?

LaserPowerMeter ships an update every 13 months, and KCSDI every 3 weeks. Most recently, LaserPowerMeter was updated on November 4, 2026 and KCSDI on November 4, 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.*