Decibel Shield vs SyncToWin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel Shield
Measure and track sound levels in real-time with this user-friendly decibel meter. Log historical data, integrate with Apple Health, and gain insights into your sound environment. Includes a white noise generator for focused listening.
- Real-time decibel monitoring
- Historical data tracking
- Apple Health integration
- White noise generator
- iCloud sync
- Location tagging
- Background processing
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Decibel Shield™ : Sound Level Meter Discover the power of sound around you with Decibel Shield™ , the free and user-friendly app designed to make noise level measurement simple and insightful. Whether you're monitoring workplace noise, checking the volume at events, or just curious about everyday sound levels, Decibel Shield™ offers an easy-to-use solution right at your fingertips. Key Features Real-Time Decibel Monitoring: Instantly view the current sound levels in decibels (dB) with precise accuracy. Perfect for those needing an accurate dB meter. Historical Data Tracking: Keep a log of all your measurements with date and time stamps for future reference. Apple Health App Integration: Save sound levels to iOS health app to track historical levels. White Noise Generator: Listen to different sounds including white,brown,blue noise and more. Trends View: Provides insights into your sound level measurements over different periods. Explore various statistics and trends to better understand your sound environment. Location Tagging: Record the location of your measurements, ideal for comparing noise levels across different places. Max and Average dB Readings: Alongside real-time data, view the highest and average decibel readings of each session. Background Processing: Measure sound levels even when the app is running in the background. VU Meter Visual Representation: A dynamic VU meter provides a visual understanding of current noise levels. Important Notice The sound level measurement provided by this app is for informational purposes only. While we strive to ensure the accuracy of the measurements, we cannot guarantee that the results are entirely precise due to various factors such as device calibration, microphone quality, and environmental conditions. By using this app, you agree to the following: No Guarantee of Accuracy: The measurements and results provided by this app are not guaranteed to be accurate and should not be relied upon for critical or professional purposes. User Responsibility: Users are solely responsible for the interpretation and use of the data provided by this app. We strongly recommend using professional sound level meters and consulting with qualified professionals for accurate measurements and health-related concerns. Limitation of Liability: The developers, owners, and affiliates of this app shall not be held liable for any damages, injuries, or adverse effects resulting from the use or misuse of the app or the reliance on the data provided. This includes, but is not limited to, direct, indirect, incidental, and consequential damages. Health and Safety: If you have any concerns about noise levels and their impact on your health, please consult with a medical professional or an accredited specialist in sound measurement and acoustics. Visit NIOSH website for more. By downloading and using this app, you acknowledge that you have read, understood, and agreed to this disclaimer. Decibel Shield™ Premium Subscription Information: Joining the Decibel Shield™ Premium Subscription may include a 7-day free trial, followed by a yearly membership fee. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable. Privacy Policy : https://appstack.wixsite.com/apps/policies Terms of Service : https://appstack.wixsite.com/apps/terms
SyncToWin
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SyncToWin helps campaign teams, nonprofits, and grassroots organizers stay on top of ActBlue fundraising. Track contribution forms, get notified when donations come in, and reach supporters quickly from your iPhone. With SyncToWin, you can: • Receive push notifications when new donations are processed via your ActBlue webhook • Track fundraising forms and see totals and contribution counts at a glance • Open a form to view donor name, amount, and paid date • Call or email donors using your device’s Phone and Mail apps • Set up once: paste your SyncToWin webhook endpoint into ActBlue so live gifts route to all signed-in devices • Optionally sync from ActBlue’s CSV API to discover forms and backfill recent donations for date ranges you choose SyncToWin uses Sign in with Apple for account creation and keeps ActBlue CSV API credentials encrypted on our servers when you choose to save them. An auto-renewable subscription unlocks the full app experience. Whether you’re running a local race, supporting a PAC, or organizing for a nonprofit, SyncToWin helps you move faster when contributions come in. Key Features: • ActBlue webhook integration for live donation alerts • Optional ActBlue CSV API sync for form discovery and historical backfill • Forms list with totals and per-form donor details • Quick phone and email outreach • Sign in with Apple and account deletion from Profile Subscription Details SyncToWin offers an auto-renewable monthly subscription that unlocks all features, including donation notifications and sync tools. Your subscription renews automatically each month unless canceled at least 24 hours before the end of the billing period. You can manage or cancel your subscription anytime in your iPhone Settings > Apple ID > Subscriptions. This app is not affiliated with, endorsed by, or sponsored by ActBlue or its affiliates. Download SyncToWin today — and turn every contribution into action. Terms of Use: https://synctowin.com/terms Privacy Policy: https://synctowin.com/privacy In addition to these terms, your use of SyncToWin is also governed by Apple’s Standard End User License Agreement available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.
Screenshots
Verdict
The clearest difference is update cadence: Decibel Shield at daily against SyncToWin's every 5 days. Decibel Shield also leads on iOS requirement (15.6 vs 18.0). 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. Decibel Shield sells 4 in-app purchases, starting at $1.99 per 7 days and SyncToWin sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
Decibel Shield ships an update daily, SyncToWin every 5 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Decibel Shield | SyncToWin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (640 ratings) — better | — |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 640 — better | — |
| Update frequency | Daily — better | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 43 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | APPSTACK LLC | Ricardo Alfaro-Ramos |
In-app purchases
Decibel Shield
- Premium Weekly7 Days trial$1.997 Days
- Premium Monthly7 Days trial$4.991 Month
- Annual Membership7 Days trial$44.991 Year
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- Premium Yearly7 Days trial$49.991 Year
SyncToWin
- SyncToWin Monthly Subscription$19.991 Month
Questions
Is Decibel Shield free?
Is SyncToWin free?
Do Decibel Shield or SyncToWin have ads?
Which is updated more often, Decibel Shield or SyncToWin?
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