ToneScope vs SLView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ToneScope
This audio analysis tool offers real-time and offline sound signal processing. It utilizes a multirate FFT for high frequency resolution and efficiency on iOS devices. All data processing is done locally, ensuring user privacy.
- Real-time audio analysis
- Offline sound signal analysis
- Multirate FFT processing
- High frequency resolution
- On-device processing
- Local audio recording
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ToneScope helps you see and understand sound in real time. ToneScope transforms complex audio into visual representations that are easy to interpret. Whether you're exploring music, investigating environmental noise, or simply curious about the sounds around you, ToneScope makes sound easier to understand. It uses a multirate FFT approach to achieve high frequency resolution at low frequencies while remaining efficient for real-time use on iOS. Users can analyze audio in real time or record sound locally and analyze it later. All processing is performed entirely on-device. Optional audio recordings are saved locally under user control. No data is transmitted, uploaded, or collected. Designed and developed by Newton Niu.
SLView
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SLView 是一款配合兼容 WiFi 相机使用的视频查看应用。用户可以通过相机 WiFi 或同一局域网连接设备，在 iPhone 或 iPad 上查看实时视频画面，并进行拍照、录像及相关设备操作。 主要功能： · 搜索并连接兼容的 WiFi 相机 · 实时查看相机视频画面 · 拍摄照片和录制视频 · 将图片和视频保存至系统相册 · 查看相机连接状态并进行相关设备操作 使用方法： 1. 启动相机设备，等待设备完成启动。 2. 将手机连接到相机 WiFi，或确保手机与相机处于同一局域网。 3. 打开 SLView，并根据提示允许本地网络和照片访问权限。 4. 在设备列表中选择相机，进入实时视频预览页面。 注意事项： 本应用需要配合兼容的 WiFi 相机设备使用。不同型号相机支持的具体功能可能有所不同。 如在使用过程中遇到问题，请通过技术支持页面联系我们。 开发者：杭州舜立光电科技有限公司 技术支持邮箱：sales@shunlioptotech.com 联系电话：0571-81631033
Screenshots
Verdict
The clearest difference is update cadence: ToneScope at every 10 days against SLView's every 2 months. SLView's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases 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.
ToneScope ships an update every 10 days, SLView every 2 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.
| Parameter | ToneScope | SLView |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 2 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Newton Niu | Hangzhou Shunli Optotech Co.,Ltd |
In-app purchases
ToneScope
No in-app purchases
SLView
No in-app purchases
Questions
Is ToneScope free?
Is SLView free?
Do ToneScope or SLView have ads?
Which is updated more often, ToneScope or SLView?
Other comparisons
