Comparison

E仪表 vs Instrument Toolbox

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

E仪表

Features
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E仪表 - 你的蓝牙车载仪表 把手机变成专业车载仪表:蓝牙连接 EllE 车载设备,实时显示车速、转速、水温、电压等 20+ 项车辆数据,即连即用,告别线缆。 【车辆数据】 · 车速 / 转速 / 水温 / 电压 / 增压 / 进气 / 节气门 / 燃油修正 等 20+ 项实时数据 · 数据曲线:行驶过程中的数据流实时成图,随时回看 · 零百 / 零六加速测试,自动计时 · 支持车型:特斯拉(蓝牙直连)、比亚迪 唐 DM-i、宝马 E84,以及常规 OBD-II 燃油车 / 电车 / 混动车 【特斯拉 Tesla】蓝牙直连车机,无需破解 CAN、不用加装转接盒 · 三步配对向导:输入 17 位 VIN → 点「开始配对」→ 把 NFC 钥匙卡放到中控台、在车机屏幕确认 → 点「下一步」立刻核对结果 · 配对状态看得见:搜索车辆 / 等待车机确认 / 已连接 分步提示;附近有车但 VIN 不匹配会直接提醒,不再无限「搜索中」 · VIN 输入自动校验,输错当场发现;本机记住上次用过的 VIN,重新配对不必再翻挡风玻璃 · 解除绑定即真解绑:设备端 VIN 与配对记录一并清除,换车不残留 · 实时读取车速、挡位、电量、续航、充电(电压 / 电流 / 功率 / 充满剩余)、门锁、胎压、空调、车内温度等 20+ 项 · 特斯拉专属仪表界面:双屏(驾驶屏 + 场景屏)或单屏可选 · 支持 Model 3 / Y 全系、2021 年改款起的 Model S / X 及 Cybertruck 【双圆屏仪表 EvilEyes Lite】 · 左右屏幕内容自由搭配:车速 / 转速 / 加速度 / 姿态 / 信息屏 / 视频 / 相册 / 时钟 · 上传视频(圆圈裁剪,≤8 秒)与相册(≤9 张,切换动画 / 停留时长 / 随机播放可配) · 开机动画可换(图片 / 视频),一键恢复品牌动画 · 设备设置:亮度、休眠时间、屏幕内容、加速度校准、恢复出厂,手机远程按键 【连接与升级】 · 蓝牙一键连接:扫描即连,掉线自动重连,锁屏与切后台连接保持 · 一键 OTA:云端查新 → 下载 → 自动连设备热点升级固件,全流程带进度 · WiFi 配网:为设备配置网络 · Android / iOS 双端支持 【说明】 · 本 App 需配合 EllE 车载硬件使用(恶魔之眼 Lite 双圆屏仪表 EELite_XXXXXX / 老款 OBD 设备 ECAR_XXXX) · 车辆熄火或车机休眠时显示最后一次的数据,不会主动唤醒车辆

About

Instrument Toolbox

A professional calculator designed for industrial control, automation, and instrumentation engineers. It offers quick conversions and calculations for gas concentration, units, steam properties, flange levels, and pipeline flow. Ideal for both field debugging and engineering design.

Highlights
  • PPM to mg/m³ conversion with compensation
  • Industrial unit conversion (pressure, volume, temp, etc.)
  • Saturated steam pressure and density calculator
  • Flange level migration calculations
  • Pipeline flow and velocity calculator
  • Real-time calculation results
Features
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Industrial Control & Instrumentation Toolbox - Your Smart Industrial Calculator A professional calculation toolbox designed for industrial control, automation, and instrumentation engineers. Whether for field debugging or engineering design, it helps you quickly complete various professional calculations. Core Features: PPM to mg/m³ Converter: Gas concentration unit conversion, supports custom molecular weight, built-in quick selection of common gas molecular weights, with environmental temperature and pressure compensation Unit Converter: Covers easy conversion of industrial measurement units including: Pressure (8 units including MPa, kPa, bar, psi, etc.) Volume Temperature Length Mass Saturated Steam Calculator: Input temperature to obtain saturated steam pressure, or input pressure to calculate saturated steam density, meeting steam system design requirements Flange Level Migration: Supports single/dual flange level calculations, with inputs for medium density, flange distance, and other parameters for precise level measurement calibration Pipeline Flow & Velocity Calculator: Applicable for both gas and liquid media, integrates velocity calculation, flow calculation, and diameter calculation, incorporating temperature, pressure, and other operating conditions Key Features: Clean and intuitive interface, easy operation Real-time calculation results Supports standard and operating condition conversions Built-in reference values like standard atmospheric pressure Suitable for both field engineering and design office scenarios This app is an essential professional tool for industrial automation, significantly improving engineering calculation efficiency. Target Users: Automation Engineers, Instrumentation Engineers, Process Engineers, Equipment Engineers, and other industrial control professionals.

Screenshots

E仪表4 screens
Instrument Toolbox4 screens

Verdict

The call

The clearest difference is price: E仪表 at Free against Instrument Toolbox's $1.99. Instrument Toolbox's advantage is update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

E仪表 is free to download; Instrument Toolbox costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

E仪表 ships an update every 2 months, Instrument Toolbox weekly. The most recent releases landed on October 3, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 5 level
E仪表 versus Instrument Toolbox: the parameters behind the verdict, then further details
ParameterE仪表Instrument Toolbox
PriceFree — better$1.99
Positive reviews—100.0% of reviews
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size26 MB8 MB
Age rating17+4+
Developer律 潘立娜 王

In-app purchases

None

E仪表

No in-app purchases

None

Instrument Toolbox

No in-app purchases

Questions

Is E仪表 free?
E仪表 is free to download, with no in-app purchases.
Is Instrument Toolbox free?
Instrument Toolbox costs $1.99, with no in-app purchases.
Do E仪表 or Instrument Toolbox have ads?
Neither E仪表 nor Instrument Toolbox shows ads.
Which is updated more often, E仪表 or Instrument Toolbox?
E仪表 ships an update every 2 months, and Instrument Toolbox weekly. Most recently, E仪表 was updated on October 3, 2026 and Instrument Toolbox on September 23, 2026.

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