# R intensive Pro vs Clusters Complex Pro

The clearest difference is rating: Clusters Complex Pro at 5.0 against R intensive Pro's 3.8. Clusters Complex Pro also leads on update cadence (every 10 days vs every 6 months) and review sentiment (100% vs 76%). R intensive Pro's advantage is ratings volume (13 vs 1) and price ($21.99 vs $24.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

R intensive Pro costs $21.99 and Clusters Complex Pro $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Clusters Complex Pro holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: R intensive Pro has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of R intensive Pro's written reviews are positive against 100% of Clusters Complex Pro's.

R intensive Pro ships an update every 6 months, Clusters Complex Pro every 10 days. The most recent releases landed on August 26, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | R intensive Pro | Clusters Complex Pro |
| --- | --- | --- |
| Price | **$21.99** | $24.99 |
| Rating | [3.8 (13 ratings)](https://appshunter.io/ios/app/r-intensive-pro/id371200389/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clusters-complex-pro/id880431282/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 75.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | Paid | Paid |
| Size | 181 MB | 472 MB |
| Requires iOS | 15.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smarty Ears](https://appshunter.io/developer/348779167) | [SLPath LLC](https://appshunter.io/developer/880431285) |

## What reviewers say

### R intensive Pro

[App page](https://appshunter.io/ios/app/r-intensive-pro/id371200389)

This app provides interactive games and targeted practice for children working on the English /r/ sound. It offers multiple activities, phonetic grouping, and progress tracking to aid in speech therapy.

**Highlights:** Interactive flashcards, matching, and guessing games, Targeted practice for pre-vocalic /r/ and clusters, Over 415 target words with images and audio, Voice recording and playback for feedback, Progress tracking and report generation, Multiplayer support for up to 4 players

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

**In-app purchases:** none


### Clusters Complex Pro

[App page](https://appshunter.io/ios/app/clusters-complex-pro/id880431282)

This app helps children practice complex consonant clusters in English words, phrases, and sentences. It offers engaging themes, randomization, and progress tracking for speech-language pathologists and young learners.

**Highlights:** Complex consonant cluster practice, 88 words, 440 phrases, 440 sentences, Over 30 themed categories, Randomization option, Progress monitoring and data collection, Audio recordings for review

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is R intensive Pro free?

R intensive Pro costs $21.99, with no in-app purchases.

### Is Clusters Complex Pro free?

Clusters Complex Pro costs $24.99, with no in-app purchases.

### Which has better reviews, R intensive Pro or Clusters Complex Pro?

Clusters Complex Pro is rated higher. R intensive Pro averages 3.8 out of 5 from 13 ratings, while Clusters Complex Pro averages 5.0 from 1 ratings.

### Do R intensive Pro or Clusters Complex Pro have ads?

Neither R intensive Pro nor Clusters Complex Pro shows ads.

### Which is updated more often, R intensive Pro or Clusters Complex Pro?

R intensive Pro ships an update every 6 months, and Clusters Complex Pro every 10 days. Most recently, R intensive Pro was updated on August 26, 2026 and Clusters Complex Pro on June 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.*