Attenuator vs Calculator mini
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
Calculator mini
A straightforward calculator app featuring a clean design. It offers essential calculation functions, a history log, and home screen widget support for quick access. Enjoy a seamless and elegant user experience for your everyday calculations.
- Basic calculation functions
- Combination calculation
- History records
- Home screen widgets
- Sleek design
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Calculator mini is a simple calculator tool designed with a sleek and elegant design language. We hope you will like it. - Quick Preview - · Basic Calculation Functions · Combination Calc · History Records · Support for Home Screen Widgets - More Information - · Privacy Policy: https://tdpezpb5hr.feishu.cn/docx/OjEKdqLN8oRcUOxYfq2cBZ1incg · Terms of Use: https://tdpezpb5hr.feishu.cn/docx/HAW9dnsetokuOGxFIYScZqzbnJb
Screenshots
Verdict
The clearest difference is rating: Attenuator at 5.0 against Calculator mini's 4.2. Calculator mini's advantage is update cadence (every 2 days vs every 7 months) and monetization model (free vs free with in-app purchases). On price, review sentiment, ratings volume and ads 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 and Calculator mini sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Attenuator holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Attenuator ships an update every 7 months, Calculator mini every 2 days. The most recent releases landed on July 29, 2026 and September 23, 2026 respectively.
| Parameter | Attenuator | Calculator mini |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 5 |
| Update frequency | Every 7 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim E. Burrow | 鑫 吴 |
Customer experience
Attenuator
Calculator mini
In-app purchases
Attenuator
- Remove all ads$1.99
Calculator mini
- Calculator mini · Pro$0.99
Questions
Is Attenuator free?
Is Calculator mini free?
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Do Attenuator or Calculator mini have ads?
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