Comparison

One vs ParentScience

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

Head to head
About

One

This app provides quick, targeted speech sound drills to help children build muscle memory and improve clarity. It's designed for daily practice, making speech therapy accessible and effective for kids with various speech sound disorders.

Highlights
  • 1-minute speech drills
  • Targets a wide range of speech sounds
  • Builds oral motor memory
  • Tracks progress
  • Engaging visuals and feedback
  • Designed for SLPs and parents
Features
Read full description

One-Minute Articulation: Fast, Focused Speech Practice for Kids Build better speech in just one minute a day. One-Minute Articulation offers quick, targeted speech sound drills that help children strengthen their muscle memory, improve clarity, and make steady progress-at home or in therapy. Build Confident Speech with Proven Muscle Memory Training Unlock clear and confident speech with our evidence-based articulation app designed to build muscle memory through consistent, targeted practice. This app helps users master the precise movements needed for accurate sound production. Give your child or client the tools they need to speak clearly—and confidently. • Strengthen oral motor skills with guided exercises • Repetition-based practice to form lasting speech habits • Engaging visuals and feedback to motivate learners • Track progress and celebrate success over time Designed for speech-language pathologists (SLP’s) and parents, this app makes daily articulation practice easy, effective, and engaging. With high-frequency repetitions and sound-by-sound breakdowns, it’s ideal for kids working on articulation, apraxia, phonological disorders, lisps, and more. Key Features: • 1-minute speech drills for quick, daily practice • Targets a wide range of speech sounds (e.g., S, R, L, TH) • Designed to build oral motor memory through repetition • Simple, intuitive interface for SLP’s and parents • Great for teletherapy, home practice or school-based sessions • Perfect for children with speech sound disorders Who Should Use It: • SLP’s needing a fast, effective warm-up or daily drill tool • Parents supporting their child’s speech at home • Kids working on articulation, phonology, or speech clarity • Educators and specialists in early intervention or special education App Content: 21 sounds • 210 Practice & Test Rounds • Initial, Medial, Final positions • Words, Phrases, Sentences 25 Blends • 75 Practice & Test Rounds • Initial Position • Words, Phrases, Sentences • L, R, and S-blends Vocalic R’s • 54 Practice & Test Rounds • Initial, Medial, Final Positions • Words, Phrases, Sentences • AR, AIR, EAR, ER, OR, IRE Total Content • 1,302 Practice & Test Words • 339 Practice & Test Rounds Whether you’re working with a preschooler or a school-aged child, One-Minute Articulation helps make speech therapy consistent, accessible, and effective—one minute at a time. Subscription, Pricing & Terms One-Minute Articulation offers free access to B, M, and P sounds. The following subscriptions are also available: STANDARD - $4.99 monthly (1 Profile, all content) PRO - $35.93 yearly (40% discount, unlimited profiles, all content) The subscription automatically renews unless you turn off your subscription 24 hours before it renews. You can manage or cancel your subscription through the user settings after the purchase. It is not possible to cancel your current subscription during the time your subscription is active. The purchase will be charged to your account.

About

ParentScience

This app translates developmental research into actionable daily challenges for parents. It offers age-calibrated activities and tracking for cognitive, language, physical, and emotional growth, supported by an AI companion for parenting questions.

Highlights
  • Age-calibrated daily challenges
  • Cognitive & language development tracking
  • Physical growth & wellbeing tracking
  • Daily log for infant and child activities
  • AI parenting companion for questions
  • Progress tracking with XP and streaks
Features
Read full description

Every parent wants to give their child the best possible start — but the gap between what developmental research actually says and what reaches families is enormous. ParentScience closes that gap, from your baby's first days through the school years. Built on peer-reviewed science and designed for the reality of tired, busy parents, ParentScience turns decades of child development research into small, specific actions you can take today. Not vague suggestions. Not overwhelming reading lists. Targeted, age-calibrated activities — rooted in the work of researchers like Dr. Patricia Kuhl, the AAP, and WHO developmental frameworks — delivered as daily challenges that fit inside a real life. The app adapts continuously as your child grows: infant tracking gives way to toddler milestones, then preschool connection and social development, then school-age habits and emotional wellbeing. Every feature, every challenge, every nudge is recalibrated to your child's current stage. What's inside: Mind Track — Cognitive & Language Development Six core development areas — Language, Motor, Cognitive, Social, Sleep, and Nutrition — each with a progress ring that builds over time. Daily challenges are calibrated to your child's exact age, drawing from a library of activities grounded in attachment theory, language acquisition research, and sensorimotor development. Your score reflects what you've actually done, not what you intended. Complete challenges to earn XP, level up, and build a streak that keeps momentum going. Body Track — Physical Growth & Wellbeing Track height, weight, and head circumference against developmental norms. Movement, outdoor time, strength, sleep hygiene, nutrition, and gross motor challenges are queued fresh each day — calibrated for whether you have a three-month-old working on neck control or an eight-year-old building physical confidence. Log measurements in seconds. See progress across years. Daily Log — The Full Picture A clean timeline that captures feeds, naps, mood, and diapers for infants — and transitions naturally to meals, activities, milestones, connection time, and school highlights as your child grows. Quick-log actions let you record anything in two taps. The log adapts to your child's age automatically. Reviewing a week of data before a pediatrician visit has never been simpler. Theresa — Your AI Parenting Companion Theresa is available around the clock for the questions that come up at 2am, between appointments, and in the middle of the chaos. Introducing solids, sleep regressions, language development, school readiness, big emotions, allergy timelines, developmental red flags — answered with clinical accuracy and genuine warmth. Theresa always tells you when something warrants a call to your pediatrician. You're never flying blind, and you're never alone. Smart Daily Nudges Instead of passive notifications you swipe away, ParentScience delivers 2–4 timed activity nudges per day — each one personally selected based on your child's current age, your completion history, and which development areas need the most attention right now. A morning language activity. An afternoon outdoor challenge. An evening wind-down that primes good sleep. The nudges evolve as your child does. Why it works: The first 1,000 days are the most neurologically formative period a human will ever experience — but development doesn't stop there. The quality of language exposure, physical activity, nutrition, emotional connection, and play across the first decade of life has measurable effects on cognition, emotional regulation, motor development, and long-term health outcomes. ParentScience is designed to help you act on that science every day, whether your child is three weeks old or seven years old, without needing a degree to understand it. You're already doing more than you think. ParentScience helps you do it with intention. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

One4 screens
ParentScience4 screens

Verdict

The call

The clearest difference is update cadence: ParentScience at daily against One's fortnightly. One's advantage is ratings volume (26 vs 1). On price, rating, review sentiment and ads 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. One sells 3 in-app purchases, starting at $3.99 per month and ParentScience sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for One against 5.0 for ParentScience. That said, the two scores are not equally well evidenced: One has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

One ships an update fortnightly, ParentScience daily. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
One versus ParentScience: the parameters behind the verdict, then further details
ParameterOneParentScience
PriceFreeFree
Rating4.9 (26 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings26 — better1
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size79 MB49 MB
Age rating4+4+
DeveloperThe Speech Solution, LLCFlash Social Technologies Inc.

Customer experience

One

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews21 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ParentScience

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

In-app purchases

3 purchases

One

Subscriptions3
  • Premium - Monthly14 Days trial$3.991 Month
  • Basic - Monthly14 Days trial$4.991 Month
  • Premium - Yearly14 Days trial$35.951 Year
1 purchases

ParentScience

Subscriptions1
  • Monthly7 Days trial$19.991 Month

Questions

Is One free?
One is free to download, with in-app purchases available.
Is ParentScience free?
ParentScience is free to download, with in-app purchases available.
Which has better reviews, One or ParentScience?
ParentScience is rated higher. One averages 4.9 out of 5 from 26 ratings, while ParentScience averages 5.0 from 1 ratings.
Do One or ParentScience have ads?
Neither One nor ParentScience shows ads.
Which is updated more often, One or ParentScience?
One ships an update fortnightly, and ParentScience daily. Most recently, One was updated on October 22, 2026 and ParentScience on October 11, 2026.

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