Comparison

StutterFlow Stuttering Therapy vs Kyndsy

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

Head to head
About

StutterFlow Stuttering Therapy

This app offers daily speech practice using Delayed Auditory Feedback (DAF) to help individuals who stutter speak more smoothly. It includes tailored exercises for specific sounds and sentences, habit-building features, and progress tracking. The tool is designed for personal practice alongside professional therapy.

Highlights
  • Delayed Auditory Feedback (DAF) modes
  • Sound and word practice exercises
  • Sentence and phrase practice
  • Daily habit building with streaks and medals
  • Progress tracking and statistics
  • Personalized content based on user goals
Features
Read full description

StutterFlow is a daily speech-practice companion for people who stutter. It is built around DAF — Delayed Auditory Feedback — a technique studied since the 1950s that plays your own voice back through headphones with a short delay. Many people find that this naturally slows speech and helps it flow more smoothly, with fewer blocks and repetitions. This is a practice tool, not a cure, and it does not replace consultation with a speech-language pathologist. Use it alongside therapy or as a daily way to keep your speech moving. WHAT'S INSIDE DAF Modes Choose a delay that fits how you speak today — from a light, barely-noticeable 50 ms up to a deeper 200 ms for focused sessions. Put on AirPods or wired headphones, tap a mode, and speak naturally. Sound Practice Train the sounds that trip you up — P, T, K, R and more. Each sound comes with a simple technique, a clear tip, and a set of words to work through at your own pace. Sentence Gym Move from single sounds to full phrases and sentences. Pair it with DAF to carry smoother speech into real, everyday talking. Build a Daily Habit Streaks, medals and a practice calendar help you show up every day — because consistency is what makes the method work. See Your Progress Simple stats show how your practice adds up week by week, so you can feel the momentum. Made for You Tell us whether you're an adult, a teen, or a parent practising with a child, which sounds are hardest, and your goal — everyday speech, public speaking, or support between therapy visits. StutterFlow tailors the materials around your answers. PRIVATE BY DESIGN Your microphone is processed only on your iPhone. Your voice never leaves your device, and there are no accounts to create. STUTTERFLOW PRO A free trial unlocks the full course — every sound and sentence, streaks and medals, stats and reminders. Continue monthly or yearly, or unlock lifetime access with a single one-time purchase. Cancel anytime in iPhone Settings. Note: subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel your subscription in iPhone Settings → Apple ID → Subscriptions. Medical disclaimer: StutterFlow is a self-practice tool and does not replace the consultation, diagnosis, or treatment of a qualified speech-language pathologist. Privacy Policy: https://stutterflow.com/en/privacy Terms of Service: https://stutterflow.com/en/terms

About

Kyndsy

Read full description

Kyndsy listens for your own voice and counts how you speak: rough words, polite ones, filler words and the moments your tone gets sharp. It shows the trend and gives you one thing to try today. SPEECH IS RECOGNISED ON YOUR PHONE • Recognition runs on the device: it works offline, and no audio is recorded or uploaded. • You record a short voice sample once, and Kyndsy counts only the speech that matches it — yours. • The microphone runs only during a session you start, stays visible the whole time and stops in one tap. • No account, no name, no email. WHAT IS INSIDE • Today — your speech index, the day's goals and one concrete suggestion. • Progress — runs, levels, a weekly report, your calmest and hardest hours. • Compass — three to five values you choose, and your movement towards them. • Evening reflection — a short check-in with three questions picked from your answers. • Speech coach — short daily exercises: filler words, pace, pauses, the balance of a conversation. • One hundred self-check tests in thirty languages. • One hundred achievements, a weekly card to share and a personal plan built from your own numbers. • Reminders you choose, family access for six people, and heart rate from your watch next to the moments your tone rose. AI REVIEW WHEN YOU ASK Kyndsy can explain a test result or your evening notes, or write a letter about your month. Nothing is sent without your consent: the screen names the AI provider and exactly what will be sent. THIRTY LANGUAGES, INCLUDING MIXED SPEECH Pick several at once — that is how people actually talk. Kyndsy Plus: sessions without the daily limit, all paid tests, your own word lists, full history and the weekly report, AI comments and seven in-depth AI reviews a week. Monthly or yearly; a family plan covers six people for a year. Payment goes through the App Store. The subscription renews automatically unless cancelled at least 24 hours before the end of the period, and is managed in your Apple ID settings. Kyndsy is a tool for self-observation and speech practice, not a medical service. Privacy policy: https://kyndsy.app/privacy Terms of use: https://kyndsy.app/terms

Screenshots

StutterFlow Stuttering Therapy4 screens
Kyndsy4 screens

Verdict

The call

StutterFlow Stuttering Therapy and Kyndsy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. StutterFlow Stuttering Therapy sells 3 in-app purchases, starting at $9.99 per month and Kyndsy sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

StutterFlow Stuttering Therapy ships an update every 9 days, Kyndsy every 10 days. The most recent releases landed on November 5, 2026 and October 29, 2026 respectively.

ScorecardNo meaningful differences
StutterFlow Stuttering Therapy versus Kyndsy: the parameters behind the verdict, then further details
ParameterStutterFlow Stuttering TherapyKyndsy
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.2 — better
Further details — not scored
Size8 MB58 MB
Age rating4+12+
DeveloperAleksandr ChizhevskiyIhor Kostohlot

In-app purchases

3 purchases

StutterFlow Stuttering Therapy

Subscriptions2
  • Monthly Subscription3 Days trial$9.991 Month
  • Yearly Subscription3 Days trial$39.991 Year
One-time1
  • Lifetime Access$69.99
10 purchases

Kyndsy

One-time10
  • AI comment$0.49
  • AI test analysis$0.99
  • A day without the limit$0.99
Show 7 more
  • Repair 1 day$1.99
  • Repair 2 days$2.49
  • Repair 3 days$2.99
  • Repair 4 days$3.49
  • Repair 5 days$3.99
  • Repair 6 days$4.99
  • Repair 7 days$5.99

Questions

Is StutterFlow Stuttering Therapy free?
StutterFlow Stuttering Therapy is free to download, with in-app purchases available.
Is Kyndsy free?
Kyndsy is free to download, with in-app purchases available.
Do StutterFlow Stuttering Therapy or Kyndsy have ads?
Neither StutterFlow Stuttering Therapy nor Kyndsy shows ads.
Which is updated more often, StutterFlow Stuttering Therapy or Kyndsy?
StutterFlow Stuttering Therapy ships an update every 9 days, and Kyndsy every 10 days. Most recently, StutterFlow Stuttering Therapy was updated on November 5, 2026 and Kyndsy on October 29, 2026.

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