Comparison

SLP Minimal Pairs Lite vs AAT Plus

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

Head to head
About

SLP Minimal Pairs Lite

This educational tool aids speech-language pathologists in treating phonological disorders in children. It offers interactive exercises with engaging pictures and word samples to improve speech sound production and discrimination. A free version allows testing of one phonological process before considering the full purchase.

Highlights
  • Targets 8 phonological processes
  • 367 engaging word pictures
  • Auditory discrimination drills
  • Contrast and repetition drills
  • Progress monitoring and client history
  • Customizable processes with in-app purchase
Features
Read full description

SLP TechTools Minimal Pairs is a speech therapy app developed by speech-language pathologists to target phonological disorders in children, pre-Kindergarten through 6th grade. NOTE: The application provides full functionality for Cluster Reduction - one of the eight processes - allowing you to fully test out the application and decide to purchase SLP Minimal Pairs Full, also available on the App Store. The app includes fun and engaging pictures of 367 words to facilitate discrimination and accurate production of speech sounds. It covers 8 commonly used phonological processes: Final Consonant Deletion, Fronting, Cluster Reduction, Prevocalic Voicing Gliding, Stopping, Depalatalization, Deaffrication and Gliding. As an In App Purchase, users can build custom processes with photos from their iPad Camera, Photo Library or Dropbox Account. Spoken word samples are recorded from the iPad. Three practice formats include: auditory discrimination, contrast drill, and repetition drill. Progress monitoring in client history tracks improvement and allows users to observe improvement over multiple sessions. The app gives the therapist maximum control of each session. All buttons are oriented near the therapist and away from the child. The pictures will not change nor will the voiced word repeat unless the therapist pushes the button.

About

AAT Plus

This tool offers a comprehensive suite of screeners and assessments for articulation, including quick screeners, full assessments, sentence-level tests, and stimulability tests. It is designed to aid in evaluating speech sound production.

Highlights
  • Quick screener
  • Full assessment
  • Sentence level assessment
  • R Screener
  • Stimulability tests
Features
Read full description

Elevate your speech therapy practice with the Articulation Assessment Toolkit Plus (AAT Plus)—the most comprehensive, dynamic, and intuitive criterion-referenced articulation assessment designed specifically for Speech-Language Pathologists. Whether you are determining baselines, monitoring progress, or writing highly targeted IEP goals, the AAT Plus transforms complex speech sound data into clear, actionable clinical insights. Moving far beyond simple raw scores, this tool provides a multi-dimensional analysis of your student's speech sound production, right from your iPad. KEY CLINICAL FEATURES Comprehensive Assessment Modules Quick Consonant Screener: Rapidly assess all English consonants in initial, medial, and final positions. Full Assessment: Evaluate all consonants plus a comprehensive Vowels Analysis (Singletons, Diphthongs, Tongue Advancement/Height, and Lip Rounding). Specialized R-Screener: Tackle the complex /r/ phoneme with a dedicated module targeting prevocalic /r/, vocalic /r/ (ar, er, ear, etc.), and R-blends. Features specialized visual badging for distortions ("dis") and gliding ("gl"). Sentence Screener: Evaluate connected speech to identify coarticulation errors and patterns that only appear in continuous dialogue. Advanced Analytics Dashboard Instantly view detailed color-coded breakdowns of your student's speech sound breakdown across six critical categories: Position in Word: Initial, Medial, and Final. Manner of Articulation: Fricatives, Plosives, Nasals, Glides, etc. Place of Articulation: Bilabial, Alveolar, Velar, Palatal, etc. Voicing Features: Differentiates voiced vs. voiceless consonant accuracy. Word-Level Breakdown: A complete phonetic transcript of target words, highlighted errors, and clinical notes. Error Types & Phonological Processes: Automatically identifies active error patterns (e.g., Final Consonant Deletion, Cluster Reduction) and provides built-in developmental suppression ages. Dynamic Stimulability Testing Automatically imports all missed targets from your assessment into an interactive stimulability dashboard. Test isolated sounds and specific word positions with built-in auditory/visual modeling prompts. Watch target statuses update in real-time (Untested, Stimulable, Not Stimulable) to effortlessly select your next therapy targets. Developmental Sound Profile Instantly overlay your student's assessment data onto standard developmental acquisition norms (adapted from Sander, 1972). Perfect for parent consultations to visually demonstrate whether an error is developmentally appropriate or requires intervention. Professional Reporting & Exporting Generate beautiful, multi-page PDF clinical reports with a single tap. Capture subjective Intelligibility Ratings (Single Word & Conversational) via intuitive sliders. Add custom clinical recommendations directly to the final report. Seamlessly share via Apple AirPrint, Email, or export directly to the Smarty Ears Therapy Report Center (TRC). Why SLPs Love AAT Plus: While standardized tests are required for initial eligibility, the AAT Plus is your essential companion for functional treatment planning. Because it is a criterion-referenced tool, you can use it continuously for progress monitoring, dynamic assessment, and baselining without the validity restrictions of standardized tests. Empower your clinical decision-making and streamline your report writing with the AAT Plus!

Verdict

The call

The clearest difference is review sentiment: AAT Plus at 100% against SLP Minimal Pairs Lite's 50%. AAT Plus also leads on rating (5.0 vs 3.6) and update cadence (monthly vs every 8 months). SLP Minimal Pairs Lite's advantage is iOS requirement (7.0 vs 15.0). On price, ratings volume, ads and in-app purchases 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

Both are free to download. SLP Minimal Pairs Lite sells 1 one-off in-app purchase and AAT Plus sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

AAT Plus holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 50% of SLP Minimal Pairs Lite's written reviews are positive against 100% of AAT Plus's.

UpkeepUpdate frequency

SLP Minimal Pairs Lite ships an update every 8 months, AAT Plus monthly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
SLP Minimal Pairs Lite versus AAT Plus: the parameters behind the verdict, then further details
ParameterSLP Minimal Pairs LiteAAT Plus
PriceFreeFree
Rating3.6 (5 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings5 — better2
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPadiPad
Requires iOS7.0 — better15.0
Further details — not scored
Size174 MB112 MB
Age rating4+4+
DeveloperSLP TechToolsSmarty Ears

Customer experience

SLP Minimal Pairs Lite

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews16 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

AAT Plus

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

SLP Minimal Pairs Lite

One-time1
  • Minimal Pairs Full Version$29.99
3 purchases

AAT Plus

Subscriptions2
  • Monthly Unlimited Testing$5.991 Month
  • Yearly Unlimited Tests$37.991 Year
One-time1
  • Purchase 5 tests$5.99

Questions

Is SLP Minimal Pairs Lite free?
SLP Minimal Pairs Lite is free to download, with in-app purchases available.
Is AAT Plus free?
AAT Plus is free to download, with in-app purchases available.
Which has better reviews, SLP Minimal Pairs Lite or AAT Plus?
AAT Plus is rated higher. SLP Minimal Pairs Lite averages 3.6 out of 5 from 5 ratings, while AAT Plus averages 5.0 from 2 ratings.
Do SLP Minimal Pairs Lite or AAT Plus have ads?
Neither SLP Minimal Pairs Lite nor AAT Plus shows ads.
Which is updated more often, SLP Minimal Pairs Lite or AAT Plus?
SLP Minimal Pairs Lite ships an update every 8 months, and AAT Plus monthly. Most recently, SLP Minimal Pairs Lite was updated on October 22, 2026 and AAT Plus on October 24, 2026.

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