All Voices vs ARC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
All Voices
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All Voices is a crowd sourcing application for low resource languages. All Voices: - Work with others to help gather data for low resource languages - Interact with other users by rating their submissions - Personalize your experience with over 20 supported languages - Have a friendly competition with other users by reaching for the top spot on the global leaderboard Why All Voices: - Be part of a bigger thing - Help collection data for often forgotten about languages - Spark your competitive drive
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.
Screenshots
Verdict
The clearest difference is update cadence: ARC at every 11 days against All Voices's every 2 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.
All Voices ships an update every 2 months, ARC every 11 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | All Voices | ARC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 61 MB | 193 MB |
| Age rating | 4+ | 4+ |
| Developer | IssakaAI | MetricWire Inc. |
In-app purchases
All Voices
No in-app purchases
ARC
No in-app purchases









