Apps by Olivier Piguet
The Sydney Language Battery app icon

Medical

The Sydney Language Battery

Olivier Piguet

Free download In-app purchases unconfirmed
Open on Apple

About this app

The Sydney Language Battery (SYDBAT) is a short but comprehensive measure of expressive and receptive language abilities. The SYDBAT was primarily developed to assist clinicians in differentiating the various forms of primary progressive aphasia (PPA). Used in conjunction with other cognitive tests, this freely-accessible tool can be used in any clinical setting to assist with the profiling of language disturbance. The SYDBAT comprises four subtests: 1) Naming 2) Repetition 3) Comprehension 4) Semantic Association Each subtest uses the same multi-syllabic (at least 3 syllables), imageable nouns. The items are ordered into three levels of difficulty, based on decreasing word frequency. Detailed administration and scoring guidelines are provided with the test. Cut-off scores to detect impaired performances have been published to aid interpretation.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Sep 1, 2026 · 0 ratings Sep 1, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Sep 1, 2026 · Free Sep 1, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 1, 2026 · 3:30 PM Free

Screenshots

The Sydney Language Battery iPad screenshotThe Sydney Language Battery iPad screenshotThe Sydney Language Battery iPad screenshotThe Sydney Language Battery iPad screenshotThe Sydney Language Battery iPad screenshot