# RF Slide Rule vs Digsight

The clearest difference is update cadence: RF Slide Rule at weekly against Digsight's monthly. RF Slide Rule also leads on iOS requirement (7.0 vs 15.6). 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.

RF Slide Rule ships an update weekly, Digsight monthly. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | RF Slide Rule | Digsight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 1 MB | 67 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CEC, S.A.](https://appshunter.io/developer/537230070) | [动芯领域(北京)科技有限公司](https://appshunter.io/developer/1445388491) |

## What reviewers say

### RF Slide Rule

[App page](https://appshunter.io/ios/app/rf-slide-rule/id448166676)

**Features:** macOS Compatibility

**In-app purchases:** none


### Digsight

[App page](https://appshunter.io/ios/app/digsight/id1599041394)

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

**In-app purchases:** none


## Frequently asked questions

### Is RF Slide Rule free?

RF Slide Rule is free to download, with no in-app purchases.

### Is Digsight free?

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

### Do RF Slide Rule or Digsight have ads?

Neither RF Slide Rule nor Digsight shows ads.

### Which is updated more often, RF Slide Rule or Digsight?

RF Slide Rule ships an update weekly, and Digsight monthly. Most recently, RF Slide Rule was updated on September 10, 2026 and Digsight 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.*