# SPM LineLazer vs PSLab

The clearest difference is update cadence: PSLab at fortnightly against SPM LineLazer's every 3 months. PSLab also leads on iOS requirement (13.0 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.

SPM LineLazer ships an update every 3 months, PSLab fortnightly. The most recent releases landed on September 26, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SPM LineLazer | PSLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 96 MB | 32 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SPM Instrument AB](https://appshunter.io/developer/578558155) | [FOSSASIA](https://appshunter.io/developer/1788752366) |

## What reviewers say

### SPM LineLazer

[App page](https://appshunter.io/ios/app/spm-linelazer/id1471086045)

**Features:** macOS Compatibility

**In-app purchases:** none


### PSLab

[App page](https://appshunter.io/ios/app/pslab/id6740454978)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SPM LineLazer free?

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

### Is PSLab free?

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

### Do SPM LineLazer or PSLab have ads?

Neither SPM LineLazer nor PSLab shows ads.

### Which is updated more often, SPM LineLazer or PSLab?

SPM LineLazer ships an update every 3 months, and PSLab fortnightly. Most recently, SPM LineLazer was updated on September 26, 2026 and PSLab on October 1, 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.*