Comparison

Interactive Number Line 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

Interactive Number Line

Features
Read full description

The Interactive Number Line is a learning tool that provides practice in several important areas of the elementary school math curriculum. Skills: Counting and Patterns Addition Subtraction Fractions Decimals Percents Integers When using the app students are prompted to find a specific number on the number line by sliding a marker to the correct position. Skills required involve: counting in patterns, adding and subtracting one and two digit numbers, equivalent fractions, ordering decimals and percents, locating positive and negative integers on a number line. Problem sets are randomly generated so the app presents a unique experience each time it is used. The Interactive Number Line is a great tool for teacher lead classroom presentations and also individual student use.

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 price: AAT Plus at Free against Interactive Number Line's $0.99. AAT Plus also leads on update cadence (monthly vs every 35 months). Interactive Number Line's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On ads 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

AAT Plus is free to download; Interactive Number Line costs $0.99 up front. AAT Plus sells 3 in-app purchases, starting at $5.99 per month. Interactive Number Line asks for nothing beyond the download.

UpkeepUpdate frequency

Interactive Number Line ships an update every 35 months, AAT Plus monthly. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Interactive Number Line versus AAT Plus: the parameters behind the verdict, then further details
ParameterInteractive Number LineAAT Plus
Price$0.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 35 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPad, Apple TV — betteriPad
Requires iOS12.0 — better15.0
Further details — not scored
Size20 MB112 MB
Age rating4+4+
DeveloperVentura Educational SystemsSmarty Ears

In-app purchases

None

Interactive Number Line

No in-app purchases

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 Interactive Number Line free?
Interactive Number Line costs $0.99, with no in-app purchases.
Is AAT Plus free?
AAT Plus is free to download, with in-app purchases available.
Do Interactive Number Line or AAT Plus have ads?
Neither Interactive Number Line nor AAT Plus shows ads.
Which is updated more often, Interactive Number Line or AAT Plus?
Interactive Number Line ships an update every 35 months, and AAT Plus monthly. Most recently, Interactive Number Line was updated on September 29, 2026 and AAT Plus on October 7, 2026.

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