Comparison

R intensive Pro vs Clusters Complex Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

R intensive Pro

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
Read full description

R Intensive was developed as a result of "intensive" requests made by speech-language pathologists. Smarty Ears is aware of the high incidence of students seen for difficulties with the /r/ phoneme, and we have created the ultimate tool to address it. Fully redesigned with a breathtaking new user interface, R Intensive is the most engaging, comprehensive, and user-friendly go-to application for children practicing the production of the English /r/ at the word, phrase, and sentence levels. R Intensive contains 3 exciting, highly interactive activities: Flashcards: Allows focused practice of the /r/ sound at the word, phrase, and sentence levels. Multiplayer mode seamlessly supports 1 to 4 players, tracking individual targets and rewards for each student as you swipe. Matching Game: Beautifully designed 4x5 grids of premium game cards make working on your target /r/ a skill of memory and articulation. Supports 1 to 4 players per game. Guess What Game: Students will have fun guessing which /r/ word is being described while practicing their articulation. If the description clue is ever too difficult, simply tap the card to reveal the hidden answer. Supports 1 to 4 players. R Intensive uses a phonetic approach to teaching the "r" sound by creating targeted subgroups that will make your students more successful in therapy. We have divided the /r/ phoneme at the word level as follows: Pre-Vocalic /r/ Clusters ar air ear er ire or rl R Intensive is the most comprehensive tool on the market that allows you to not only practice the production of the /r/ phoneme but also accurately tally the percentage of accuracy directly on your iPad or iPhone. Features that make this app an essential therapy tool: Over 415 target words featuring stellar, high-quality images and crisp audio. Built-in voice recording and playback to provide instant auditory feedback to students. An animated star-based reward system to keep students highly motivated. Store, review, and email detailed "report cards" from individual sessions. Print reports directly from the app. Student report cards feature easy-to-read graphs for the Flashcards activity, making analyzing results and progress simple and clear. Import a student photo, or choose from one of 50 high-quality avatars to represent the player. Quick Play feature allows those unconcerned with data tracking to jump straight into a session. Multiplayer capability across all three activities supports up to four players simultaneously. Intuitive, distraction-free user interface designed specifically for clinical and educational settings. Whether you are working in a school, clinic, or at home, R Intensive is the ultimate resource for mastering this complex phoneme.

About

Clusters Complex Pro

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
Read full description

***NEW SALE PRICE $24.99 (REGULARLY $34.99)*** ***ADDITIONAL 50% OFF WITH VOLUME / EDUCATIONAL DISCOUNT*** Welcome to the Clusters Complex! Our app targets the ten most complex clusters, including three-element clusters and complex two-element clusters. It includes 968 photographs depicting 88 words, 440 phrases and 440 sentences. Children may select motivating themes based on specific animals, activities and sports. A randomization option presents the photographs in mixed order. Furthermore, children can engage in self-monitoring and view short reward videos if they achieve a high level of accuracy. SLPs have the option to monitor progress through recordings and data collection over time, all of which can be backed up on a computer or emailed. All words in this app were carefully selected for the above complex clusters. Ideally, the targets also include early-developing sounds in the medial or final word position. For instance, among /skw-/ words are “squad,” “squeaky” and “squeeze.” We did not select “square” or “squabble” because the final sounds may distract from the challenging initial clusters. Additionally, the phrases and sentences were judiciously chosen. As much as possible, they are loaded with early-developing sounds so that the child may focus on the cluster target. For example, the /fl-/ phrase “white floppy hat” allows the child to focus on the /fl-/ target because it is surrounded by the early sounds, /w t p h/. Likewise, the /fl-/ sentence “We took a flight to Maine” provides a facilitative context. • Features CC and sCC clusters (/θr-/, /fl-/, /fr-/, /sl-/, /shr-/, /str-/, /skr-/, /spr-/, /skw-/, /spl-/) • English targets – Words (88) – Phrases (440) – Sentences (440) • Colorful photos and videos • Over 30 themes (sports, animals, activities) for students to choose from; each comes with its own customized buttons, backgrounds, and reward videos • Randomization option • Self-monitoring • Progress monitoring • Customized messages for students • Data collection features include audio recordings which can be emailed, backed up to computer, or stored on your Apple device

Screenshots

R intensive Pro4 screens
Clusters Complex Pro3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
R intensive Pro versus Clusters Complex Pro: the parameters behind the verdict, then further details
ParameterR intensive ProClusters Complex Pro
Price$21.99 — better$24.99
Rating3.8 (13 ratings)5.0 (1 ratings) — better
Positive reviews75.7% of reviews100.0% of reviews — better
Number of ratings13 — better1
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.010.3 — better
Further details — not scored
Size181 MB472 MB
Age rating4+4+
DeveloperSmarty EarsSLPath LLC

Customer experience

R intensive Pro

All ratings13 ratings
Positive61.5%
Neutral15.4%
Negative23.1%
Written reviews37 reviews
Positive75.7%
Neutral5.4%
Negative18.9%

Clusters Complex Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

R intensive Pro

No in-app purchases

None

Clusters Complex Pro

No in-app purchases

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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