Submersible Audio Light Sensor vs ObjectiveEd Games
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Submersible Audio Light Sensor
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The Submersible Audio Light Sensor (SALS) app works with the SALS probe, a Bluetooth Low Energy device, purchased separately from the American Printing House for the Blind. One end of the probe detects light in either air or liquids and the other end coverts detected light to sound (in the form of a tone) and sends the data to the app downloaded on an iPhone or iPad. Use of the app and probe alert a student with visual impairment or blindness that a chemical reaction has taken place (e.g., a precipitate has formed, pH has changed) in a beaker or test tube. Differences in luminance between the surfaces of objects in air (e.g., rocks or pH paper) can also be detected by the probe and app.
ObjectiveEd Games
This app offers a collection of games designed to help blind and visually impaired students develop essential skills. It's utilized by educators and specialists to support learning in areas crucial for visually impaired individuals.
- Games for visually impaired students
- Expanded Core Curriculum practice
- Used by TVIs and O&M Specialists
- Assistive technology integration
- Free to download and use
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ObjectiveEd Games is the first pack of games for blind and visually impaired students to practice Expanded Core Curriculum skills. These games are used by Teachers of Visually Impaired Students, Orientation and Mobility Specialists, and Assistive Technology Specialists.
Screenshots
Verdict
The clearest difference is update cadence: ObjectiveEd Games at every 5 weeks against Submersible Audio Light Sensor's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Submersible Audio Light Sensor ships an update every 6 months, ObjectiveEd Games every 5 weeks. The most recent releases landed on September 10, 2026 and July 5, 2026 respectively.
| Parameter | Submersible Audio Light Sensor | ObjectiveEd Games |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.6 (17 ratings) — better |
| Positive reviews | — | 36.4% of reviews |
| Number of ratings | — | 17 — better |
| Update frequency | Every 6 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 731 MB |
| Age rating | 4+ | 4+ |
| Developer | American Printing House for the Blind (APH) | OBJECTIVE ED INC |
In-app purchases
Submersible Audio Light Sensor
No in-app purchases
ObjectiveEd Games
No in-app purchases
Questions
Is Submersible Audio Light Sensor free?
Is ObjectiveEd Games free?
Do Submersible Audio Light Sensor or ObjectiveEd Games have ads?
Which is updated more often, Submersible Audio Light Sensor or ObjectiveEd Games?
Other comparisons
