Attenuator vs RadMay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Attenuator
Calculate output voltage, power, and attenuation based on input values and dB of attenuation. Features NMR-specific calculations for pulses and measures local magnetic fields and barometric pressure.
- Calculate output voltage and power
- Specify input voltage (Vpp or Vrms)
- Calculate attenuation in dB
- NMR pulse calculations
- Measure local magnetic field
- Display barometric pressure
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Attenuator is a utility for anyone working with radio frequency sources and needs to know power and voltage after attenuation. You can specify an input voltage (Vpp or Vrms) and dB of attenuation to get the output voltage, power and attenuation. The impedance can be specified, typically 50Ω for most systems. There is a new emphasis on NMR utility, with options for calculating pulses based on reference power and pulse length. Powers are in Watts, dBm, and dB values. Measure local magnetic field to check stray static fields from magnets. See the local barometric pressure, useful if the magnet boil-off is high
RadMay
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RadTarge-Mini是一款高灵敏且小巧便携的个人剂量仪，通过蓝牙链接手机APP RadMay，并通过手机将数据传输到RAYCloud云端，建立终身可追溯的个人辐射健康档案，为个性化医疗提供翔实可靠的数据支持。 RadTarge-Mini内置了基于高性能的晶体和光电器件实现的闪烁探测器，并采用了自主知识产权的MVT技术(多阈值数字化技术)实现信号数字化，这使得RadTarge-Mini的灵敏度是同等尺寸盖格管产品的20倍以上。同时RadTarge-Mini有低至20keV的能量探测下限，完全满足医疗及工业领域的辐射探测的需求。 RadMay APP 可实时显示测量数据，随时检索历史数据，查看全球辐射剂量分布数据，同时支持用户自定义录制辐射轨迹，变辐射被动记录为主动管理。RAYCloud为用户提供了安全的数据管理和数据分析，是RAYCAN智能辐射管理系统的重要组成。
Screenshots
Verdict
The clearest difference is in-app purchases: RadMay at none against Attenuator's 1. RadMay also leads on update cadence (every 2 months vs every 7 months) and iOS requirement (13.0 vs 17.6). On price, ads 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. Attenuator sells 1 one-off in-app purchase. RadMay asks for nothing beyond the download.
Attenuator ships an update every 7 months, RadMay every 2 months. The most recent releases landed on July 29, 2026 and September 19, 2026 respectively.
| Parameter | Attenuator | RadMay |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim E. Burrow | Raycan Technology Co.,Ltd.(Suzhou) |
In-app purchases
Attenuator
- Remove all ads$1.99
RadMay
No in-app purchases
