RMS Calculator vs GeerGap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RMS Calculator
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How should the effective value be calculated? What is the amplitude of the effective value of 100V? In such a case, do you have any experience of calculating the effective value while checking the calculation formula every time? This app can quickly convert the effective value and amplitude of AC waveforms. There are 4 types of conversion units: rms value, average value, amplitude, and Peak to Peak Amplitude. By inputting the amplitude or effective value of the AC waveform and selecting the unit of the input value, the value converted into 4 types of units will be displayed.
GeerGap
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GeerGap 是一款专为车队编队出行设计的智能导航工具,需配合 GeerGap 专属硬件设备使用。 核心功能 蓝牙一键连接:手机通过蓝牙快速配对 GeerGap 设备,连接稳定、操作简单。 位置一键发送:队长在地图上选定目的地,点击发送即可将位置信息传输至设备。 群体导航广播:设备自动将目的地信息广播至所有成员,全队同步导航目标。 地点收藏管理:常用目的地一键收藏,下次出行直接调用,省时高效。 地点搜索:支持关键词搜索目标地点,精准定位目的地。 适用场景 企业商务车队出行、物流运输编队调度、自驾游车队组队出行、户外越野编队探险、婚庆车队统一导航。 使用说明 本应用需配合 GeerGap 专属蓝牙硬件设备使用。使用前请确保设备已开机并靠近手机,开启手机蓝牙后在 App 内搜索并连接设备,即可开始使用。 告别对讲机报地址的烦恼,让车队每一辆车都清楚知道目的地。
Screenshots
Verdict
The clearest difference is price: GeerGap at Free against RMS Calculator's $1.99. GeerGap also leads on update cadence (weekly vs every 15 months). RMS Calculator's advantage is iOS requirement (12.0 vs 15.6). On 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
GeerGap is free to download; RMS Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RMS Calculator ships an update every 15 months, GeerGap weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | RMS Calculator | GeerGap |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 15 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | +4 | 4+ |
| Developer | Kei Suefuji | Nancy Benoit |
In-app purchases
RMS Calculator
No in-app purchases
GeerGap
No in-app purchases
Questions
Is RMS Calculator free?
Is GeerGap free?
Do RMS Calculator or GeerGap have ads?
Which is updated more often, RMS Calculator or GeerGap?
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