Speech Therapy App Comparison
Sound Safari vs Word Vault
Word Vault (from Home Speech Home) is a long-standing favorite among SLPs for its massive content library and permanent free tier. Sound Safari is a newer, clinically-integrated tool with a completely different focus: auto-generated SOAP notes, data tracking, and a built-in screener. Here's how they actually compare.
The short answer
Word Vault wins on content library size (8,100+ words, 3,800+ minimal pairs), price (free tier + $5.99/mo), and 30-day trial. Sound Safari wins on clinical workflow — SOAP notes, IEP goal bank, error pattern detection, progress tracking, and a built-in screener — none of which Word Vault offers. If your bottleneck is "I need more word lists," Word Vault is excellent. If your bottleneck is "I need documentation and data tracking," Sound Safari is the right tool.
What Sound Safari looks like
A glance at the clinical tools you get out of the box.

SOAP Notes

IEP Goal Bank

Progress Charts

PDF Reports
Feature comparison
Last updated April 2026
| Feature | Sound Safari | Word Vault |
|---|---|---|
| Auto-generated SOAP notes | check_circle | — |
| Built-in articulation screener | 44-item | — |
| IEP goal bank | 8 categories | — |
| Error pattern detection | check_circle | — |
| Progress tracking & charts | check_circle | — |
| Articulation words | 2,020 | 8,100+ |
| Phrases & sentences | 660 + 960 | 1,800+ combined |
| Stories | 21 | 115 |
| Minimal pairs | ~130 | 3,800+ |
| Apraxia / fluency / voice content | Goal tracking only | Practice materials |
| Parent portal | HTML homework export | 1-touch email |
| Free tier | — | Essential (permanent) |
| Free trial | 14 days | 30 days |
| Subscription monthly | $9.99 Pro / $4.99 Parent | $5.99 |
Price comparison
Word Vault is the price leader — Sound Safari's value comes from the clinical features bundled in.
Sound Safari
- Pro monthly$9.99
- Pro annual$79.99/yr
- Parent monthly$4.99
- Parent annual$47.99/yr
- Free trial14 days
Word Vault
- Essential (free)$0
- Subscription monthly$5.99
- Subscription annual$54.99/yr
- Pro (one-time)$49.99
- Free trial (subscription)30 days
Word Vault Essential is free forever for the basic features. Sound Safari is subscription-only but includes clinical documentation, a screener, and an IEP goal bank that Word Vault does not offer at any tier.
Sound Safari is a better fit if...
- checkYou need SOAP notes, IEP goal tracking, or a built-in screener in the same app — Word Vault has none of these.
- checkYou want automatic error pattern detection and progress charts that show parents and administrators what's actually happening over time.
- checkYou want a full practice hierarchy (isolation → story) with 7 game modes, not just word lists.
Word Vault is a better fit if...
- checkYou just need a massive word and minimal pair library for rapid drilling — 8,100+ words and 3,800+ minimal pairs is hard to beat.
- checkYou specifically need apraxia, fluency, or voice therapy materials that Sound Safari doesn't have yet.
Where Sound Safari goes beyond Word Vault
Full clinical documentation
Word Vault is essentially a large word-list app with some activities layered on top. It has no SOAP notes, no progress tracking, no reports to show parents or admins. Sound Safari auto-generates SOAP notes and PDF progress reports from session data — the documentation that actually matters at the end of a long day.
Built-in articulation screener
Word Vault has no screener. Sound Safari's 44-item screener uses developmental norms (McLeod & Crowe 2018) and produces a PDF report in 10–15 minutes — the kind of thing districts usually pay $200+ for as a separate tool.
IEP goal bank with progress tracking
Sound Safari includes a full IEP goal bank across 8 categories. Goals auto-link to sessions, and progress charts update after every practice. Word Vault does not offer goal management.
Error pattern detection
Sound Safari automatically flags phonological processes (fronting, stopping, backing, cluster reduction, etc.) across sessions. Word Vault collects no error data because it doesn't track scoring at all.
Proper parent portal, not just email
Word Vault's "parent engagement" is a 1-touch email with the word list. Sound Safari's parent portal is a dedicated HTML page with practice activities parents can interact with — and results that sync back to your dashboard so you know who actually practiced.
Questions SLPs ask when comparing
Is Sound Safari cheaper than Word Vault? expand_more
Word Vault is cheaper on raw subscription price ($5.99/mo vs Sound Safari's $9.99/mo) and it has a permanent free tier (Word Vault Essential). However, you're paying for different things: Word Vault is a word-list app, Sound Safari bundles SOAP notes, a screener, an IEP goal bank, error pattern detection, and progress reports. For SLPs, the documentation tooling typically saves 15+ minutes per session — that's worth the price delta for most clinicians.
Does Sound Safari have as many words as Word Vault? expand_more
No — Word Vault has a much larger raw word library (8,100+ words, 3,800+ minimal pairs). Sound Safari has 2,020 words, 660 phrases, and 960 sentences. The trade-off is clinical features: Sound Safari's smaller content library is wrapped in SOAP notes, goal tracking, and progress reports that Word Vault does not include.
Does Sound Safari have an apraxia or fluency module? expand_more
Not yet. Word Vault has dedicated practice content for apraxia (nonsense syllables, multisyllabic words), fluency techniques, and voice work. Sound Safari can track IEP goals in those categories but does not yet ship structured practice materials for them. If apraxia or fluency are your primary focus, Word Vault's content library is a real advantage.
What do SLPs prefer about Sound Safari vs Word Vault? expand_more
Most clinicians who switch are motivated by documentation and data. Word Vault is excellent when you just need word lists — but at the end of the session, you're still hand-writing SOAP notes and manually tracking IEP progress. Sound Safari handles both automatically. Many SLPs use both: Word Vault for raw stimuli variety, Sound Safari for the clinical workflow.