i Sound Level Meter vs 电波表对时 Time Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i Sound Level Meter
Measure the noise levels around you with this sound meter. Track maximum and minimum decibel values during your measurements. For the most accurate readings, consider using a high-performance noise meter.
- Measures ambient noise levels
- Tracks maximum noise values
- Tracks minimum noise values
- Displays noise measurements
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The noise meter (noise measuring aparatus). There may be an error of measurement for each smart phone. You can measure how much noise around him. You can check the maximum and minimum values to start You noise measurements. It is recommended to use a high-performance noise meter for accurate noise measurement.
电波表对时 Time Sync
This utility app simulates six major radio wave clock signals to synchronize atomic watches. It features a "MAX" gain mode for faster synchronization and a realistic interface inspired by radio oscilloscopes. The app is ad-free and offers a pure, user-focused experience for all atomic watch owners.
- Simulates six global radio wave signals
- MAX gain signal mode for fast syncing
- Supports all atomic watches and clocks
- Realistic radio oscilloscope interface
- Ad-free and no in-app purchases
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支持所有电波表 完美模拟六局电波信号 无广告！无内购！ 应用特征： - 支持全球六局电波信号 完美模拟 BPC（中国）、JJY40/60（日本）、WWVB（美国）、MSF（英国）、DCF77（德国）授时信号 - 「MAX」增益信号模式 最大程度还原电波信号，快速对时！ - 支持所有电波表和时钟 支持任何品牌、任意型号电波表 - 优秀并真实的界面 灵感来源于电台示波器，让对时更加有趣 - 无广告 纯粹的电波表对时应用，最大用户体验度 使用教程： 1. 将 iPhone/iPad 的音量调到最大 2. 将电波表设置到手动收波模式，并靠近 iPhone/iPad 扬声器 3. 将 App 调整到 「ON」或「MAX」位，发射电波 注意事项： 1. 对时过程中请远离电磁信号（如Wifi、蓝牙，正在运行中电视、电脑或其他电子设备） 2. 对时过程中请保持环境安静 3. 对时需3-10分钟，需耐心等待 使用过程中有任何疑问可通过应用内「反馈问题」联系我们 或发邮件至 601322806@qq.com
Screenshots
Verdict
The clearest difference is review sentiment: 电波表对时 Time Sync at 77% against i Sound Level Meter's 22%. 电波表对时 Time Sync also leads on rating (5.0 vs 4.4) and ads (none vs shown). i Sound Level Meter's advantage is price (Free vs $0.99) and ratings volume (37 vs 2). On 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
i Sound Level Meter is free to download; 电波表对时 Time Sync costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
电波表对时 Time Sync holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: i Sound Level Meter has 37 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 22% of i Sound Level Meter's written reviews are positive against 77% of 电波表对时 Time Sync's.
i Sound Level Meter ships an update monthly, 电波表对时 Time Sync daily. Both last shipped on September 26, 2026.
| Parameter | i Sound Level Meter | 电波表对时 Time Sync |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.4 (37 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 22.0% of reviews | 76.9% of reviews — better |
| Number of ratings | 37 — better | 2 |
| Update frequency | Monthly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | 大连森林互动科技有限公司 |
Customer experience
i Sound Level Meter
电波表对时 Time Sync
In-app purchases
i Sound Level Meter
No in-app purchases
电波表对时 Time Sync
No in-app purchases
Questions
Is i Sound Level Meter free?
Is 电波表对时 Time Sync free?
Which has better reviews, i Sound Level Meter or 电波表对时 Time Sync?
Do i Sound Level Meter or 电波表对时 Time Sync have ads?
Which is updated more often, i Sound Level Meter or 电波表对时 Time Sync?
Other comparisons
