# SKF iLMS vs Straightness

The clearest difference is update cadence: SKF iLMS at every 3 weeks against Straightness's every 2 months. Straightness's advantage is iOS requirement (12.0 vs 17.0). 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.

SKF iLMS ships an update every 3 weeks, Straightness every 2 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | SKF iLMS | Straightness |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 41 MB | 59 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SKF](https://appshunter.io/developer/472922971) | [ACOEM Group](https://appshunter.io/developer/1495816959) |

## What reviewers say

### SKF iLMS

[App page](https://appshunter.io/ios/app/skf-ilms/id6743708726)

**Features:** macOS Compatibility

**In-app purchases:** none


### Straightness

[App page](https://appshunter.io/ios/app/straightness/id6759055500)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SKF iLMS free?

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

### Is Straightness free?

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

### Do SKF iLMS or Straightness have ads?

Neither SKF iLMS nor Straightness shows ads.

### Which is updated more often, SKF iLMS or Straightness?

SKF iLMS ships an update every 3 weeks, and Straightness every 2 months. Most recently, SKF iLMS was updated on September 17, 2026 and Straightness on September 17, 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.*