# robo vs RF Tools ++

The clearest difference is price: robo at Free against RF Tools ++'s $1.99. robo also leads on iOS requirement (9.0 vs 17.0). RF Tools ++'s advantage is update cadence (every 2 weeks vs every 9 months). On ads, in-app purchases and device support there is nothing between them.

robo is free to download; RF Tools ++ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

robo ships an update every 9 months, RF Tools ++ every 2 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | robo | RF Tools ++ |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Size | 33 MB | 42 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Touch Bionics, Inc.](https://appshunter.io/developer/622776964) | [Jeff Curtis](https://appshunter.io/developer/358219019) |

## What reviewers say

### robo

[App page](https://appshunter.io/ios/app/robo-limb/id773508024)

**In-app purchases:** none


### RF Tools ++

[App page](https://appshunter.io/ios/app/rf-tools-plus-plus/id1548209609)

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

**In-app purchases:** none


## Frequently asked questions

### Is robo free?

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

### Is RF Tools ++ free?

RF Tools ++ costs $1.99, with no in-app purchases.

### Do robo or RF Tools ++ have ads?

Neither robo nor RF Tools ++ shows ads.

### Which is updated more often, robo or RF Tools ++?

robo ships an update every 9 months, and RF Tools ++ every 2 weeks. Most recently, robo was updated on October 7, 2026 and RF Tools ++ on October 9, 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.*