ARC vs Neuroscape ORCA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ARC
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ARC-DS by MetricWire has been created for use in research studies conducted by Washington University in St. Louis as part of the Ambulatory Research in Cognition – Down Syndrome (ARC-DS) study. As part of your participation, you’ll be asked to complete surveys about your thoughts, feelings, and behaviors. With your permission, the app may also collect sensor data—such as activity levels, environmental context, and smartphone usage patterns—to help researchers better understand cognitive and behavioral health in individuals with Down syndrome. Your app experience is customized by the study team using the MetricWire Research Portal. All data you submit is securely protected by MetricWire and managed by the ARC-DS study team. You remain in full control of your data—you can review what you’ve shared, choose to leave the study at any time, or delete your data if you wish. If you have any questions, please contact the ARC-DS study team using the contact information they’ve provided. ARC-DS by MetricWire makes research participation simple, secure, and meaningful—designed with transparency and user control at the core.
Neuroscape ORCA
This app helps users characterize their digital presence and understand their online footprint. It provides insights into how personal data is represented and managed across various digital platforms. Gain a clearer picture of your digital identity and its implications.
- Digital presence characterization
- Online footprint insights
- Data representation analysis
- Digital identity management
- Platform data understanding
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Neuroscape ORCA characterization app
Screenshots
Verdict
The clearest difference is update cadence: ARC at every 10 days against Neuroscape ORCA's every 5 weeks. 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.
ARC ships an update every 10 days, Neuroscape ORCA every 5 weeks. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.
| Parameter | ARC | Neuroscape ORCA |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 187 MB | 138 MB |
| Age rating | 4+ | 4+ |
| Developer | MetricWire Inc. | NEUROSCAPE ALLIANCE |
In-app purchases
ARC
No in-app purchases
Neuroscape ORCA
No in-app purchases
