Functional Oral Intake Scale
by Florida Dysphagia Institute, LLC
- Medical
- Paid
- Zombie
- Rating
- 0.0
- 0 ratings · Switzerland storefront
- Last update
- Nov 16, 2019
- Version 1.0
- Size
- 15 MB
- Category
- Medical
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
The FOIS (Functional Oral Intake Scale) is a scoring tool to rate oral intake of food and liquid in adult patients with dysphagia (swallowing difficulty). The FOIS is a validated tool applicable to a wide range of health conditions contributing to swallowing difficulty. This app automatically identifies the correct FOIS level based on clinician’s yes/no responses to a few questions. The FOIS is widely recognized as a valuable and unique part of the clinical examination of swallowing function in adults.
Please see our terms of use at https://fdi2.com/wp-content/uploads/2019/05/FDI-terms.pdf
Rank history
Daily position in the Macao charts. #1 is at the top.
- Best rank
- #1
- Current rank
- #1
- Days charting
- 2 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
76/100
Not flagged as small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size100% · 10
Size: 15 MB
- Price model100% · 15
Price model: paid
- Demand proof60% · 30
Best rank #1, 2 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.0LatestReleased Nov 16, 2019