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仪表是 EvilEyes Lite 与 EBar 车载仪表的官方伴侣 App。 连接仪表,车辆数据就活了 通过蓝牙连接 EvilEyes Lite 双圆屏或 EBar 条形屏,实时查看车速、转速、水温、进气温度、涡轮压力、燃油修正、SOC、电池电压 / 电流 / 温度、挡位、里程、踏板与扭矩等数据;G 值、车身姿态与加速成绩也能同屏掌握。 把仪表调成你喜欢的样子 · EvilEyes Lite 左右两屏各可放 4 个参数,长按拖动排序,参数池一键增删。 · EBar 内置 5 张背景图,也可从相册自定义;EvilEyes Lite 支持相册与视频仪表:最多 9 张照片轮播、8 秒视频循环,开机动画可换成图片(3 秒)或短片(最长 5 秒)。 · 亮度、CAN 速率、显示内容等设置直接在手机上完成,不用拆车,也不用连电脑。 覆盖你开的车 · EvilEyes Lite:Tesla、宝马 E84、比亚迪唐 DM-i,以及通用燃油 / 纯电 / 混动 OBD 车型。 · EBar Lite:Tesla、BYD、通用 OBD 三种版本。 · Tesla 车型支持蓝牙配对与解绑;EBar BYD 版本可显示导航、胎压与里程(需车机链路提供数据)。 · 同一块 EBar 可在三种车型固件间切换,按 App 内提示确认即可。 性能与诊断,心里有数 · 0–60 km/h、0–100 km/h 加速计时,数据来自车辆实时车速。 · 实时 G 值与姿态显示,过弯、刹车更有数。 · 宝马 E84 支持读取与清除故障码;EBar OBD 支持 19 项参数一键全扫。 · 参数监视器列出当前车型的全部参数与实时值,方便排查。 升级与维护,不用回店 · EvilEyes Lite 通过设备热点升级,EBar 通过蓝牙直接升级;手机下载、手机推送,全程无需电脑。 · 可查看并选择正式版 / 测试版固件,升级进度实时显示。 · 设备日志可上传到服务器,遇到问题更快定位。 中英双语,全球可用 App 界面支持中文与 English 随时切换;设备端画面同样提供中英两套设计。 三步开始 1. 给仪表上电,打开手机蓝牙。 2. 在 E仪表中搜索并连接设备(EELite_ / EBL- 开头)。 3. 按车型选择显示内容,开始使用。 注意事项 · 本 App 需配合 EvilEyes Lite / EBar 硬件使用,不能单独读取车辆数据。 · 车型与功能支持取决于设备型号、固件版本与车辆协议;部分数据需 · 驾驶过程中请勿操作手机;显示设置、配对与固件升级请在停车状态下进行。 · 固件升级期间请保持设备供电与蓝牙连接,切勿断电或退出 App。 · Tesla 配对需准备 17 位 VIN 与 NFC 卡,按 App 内步骤操作。

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 monthly) 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 monthly, Instrument Toolbox weekly. The most recent releases landed on November 7, 2026 and November 8, 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 frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size27 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 monthly, and Instrument Toolbox weekly. Most recently, E仪表 was updated on November 7, 2026 and Instrument Toolbox on November 8, 2026.

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