Speech Stack brings evidence-informed therapy approaches together in one easy-to-use app. Organized word lists, phonetically controlled targets, printable materials and session tracking, all with less prep.
For iPhone and iPad. Tap Get launch news and we'll email you the day it's live.
Quickly find the materials you need for your therapy goals.
Organized word lists for initial, medial and final positions, in words, phrases or sentences.
Picture pairs that contrast the target with the error sound.
Listening lists and target words for primary patterns.
Harder clusters first, for broader change across sounds.
Choose the target sound, word position, syllable length and sounds to exclude. Get an organized word list with pictures in seconds.
Disability inclusive images are included throughout every workflow.
Hi! I'm Hannah Gwinn, M.S., CCC-SLP, a Speech Language Pathologist with 10 years of experience in pediatrics. I built Speech Stack to make it easier for SLPs to find evidence-based materials in one spot. No more switching through multiple apps or shuffling through bulky folders to find effective materials to treat speech sound disorders.
SLP graduate students get Speech Stack free while they're in their program. Verification details will come with the App Store launch.
Last updated October 17, 2026
This policy describes how the Speech Stack app and website ("Speech Stack", "we") handle information. The short version: we do not collect, transmit, sell or share personal information, and the app works without an account.
When you use the app, the client IDs you enter, the sessions you save, the scores you mark and the worksheets you save are stored only on the device you are using. We have no access to this information and cannot recover it. Deleting the app removes it. We recommend using initials or a code as a client ID rather than a full name.
The app does not create accounts and does not send client information, usage analytics or device identifiers to us or to anyone else. The app contains no advertising and no third-party analytics code.
Picture files are loaded from our image library. Those requests contain only the name of the picture file; they contain no client information and are not linked to you.
If you email us, we receive your email address and whatever you write. We use it only to reply to you and do not share it.
A future version may offer optional syncing between your own devices using your Apple iCloud account. If you turn it on, your data is stored in your iCloud account under Apple's terms; Speech Stack cannot access it. Sync is off unless you turn it on, and turning it off removes nothing from your device.
Speech Stack is operated by a clinician or caregiver. It is not designed for children to use on their own and does not knowingly collect information from children.
Because all data lives on your device, you control it directly: delete a client inside the app, or delete the app to remove everything. You can email us at any time with questions.
If this policy changes, the new version will appear on this page with a new date, and in the app's Help section.
speechstack.app@gmail.com
Last updated October 17, 2026
Speech Stack is a materials and progress-tracking tool for use by, or under the direction of, a qualified speech-language pathologist. It is not a medical device and does not assess, diagnose or prescribe treatment. Treatment targets, approach and judgments about progress rest on your own assessment and professional judgment.
You are responsible for meeting the privacy rules that apply to your setting, including laws such as HIPAA and FERPA, for example by using de-identified client IDs and securing your device.
Pictures, word lists, phrases, sentences and listening lists are provided for use within Speech Stack, in your therapy sessions and on take-home sheets you give to the families you work with. They may not be redistributed, resold or used to build other products.
Subscriptions are purchased and managed through the App Store and renew automatically unless cancelled at least 24 hours before the end of the current period. Apple's terms govern billing and refunds. Verified graduate students in speech-language pathology programs may receive free access; eligibility and verification are described at the time of sign-up and may change.
Speech Stack is provided as is, without warranty of any kind, express or implied. To the fullest extent permitted by law, we are not liable for any loss arising from use of the app, including loss of data stored on your device. Keep your own records where your setting requires them.
speechstack.app@gmail.com
Email us and we'll let you know the day Speech Stack is in the App Store. Questions are welcome too.
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