# Visolve RT for iPhone vs RF Tools ++

The clearest difference is price: Visolve RT for iPhone at Free against RF Tools ++'s $1.99. Visolve RT for iPhone also leads on iOS requirement (11.0 vs 17.0). RF Tools ++'s advantage is update cadence (every 2 weeks vs every 13 months). On ads, in-app purchases and device support there is nothing between them.

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

Visolve RT for iPhone ships an update every 13 months, RF Tools ++ every 2 weeks. Both last shipped on October 9, 2026.

## The numbers

| Metric | Visolve RT for iPhone | RF Tools ++ |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 3 MB | 42 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryobi Systems Co.,Ltd.](https://appshunter.io/developer/422237051) | [Jeff Curtis](https://appshunter.io/developer/358219019) |

## What reviewers say

### Visolve RT for iPhone

[App page](https://appshunter.io/ios/app/visolve-rt-for-iphone/id668502747)

This utility app assists individuals with color vision deficiency by applying real-time video transformations to enhance color perception. It offers various filters and simulations to help users distinguish colors, find specific hues, or understand how others perceive the world.

**Highlights:** Real-time video color transformations, Red-Green color transform, Blue-Yellow color transform, Saturation increase, Color filtering, Hatching patterns, Color blindness simulation

**Features:** macOS Compatibility

**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 Visolve RT for iPhone free?

Visolve RT for iPhone is free to download, with no in-app purchases.

### Is RF Tools ++ free?

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

### Do Visolve RT for iPhone or RF Tools ++ have ads?

Neither Visolve RT for iPhone nor RF Tools ++ shows ads.

### Which is updated more often, Visolve RT for iPhone or RF Tools ++?

Visolve RT for iPhone ships an update every 13 months, and RF Tools ++ every 2 weeks. Most recently, Visolve RT for iPhone was updated on October 9, 2026 and RF Tools ++ on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*