Comparison

Tenio vs Circuit Calculator Pro

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

Head to head
About

Tenio

This app provides a suite of calculators and converters for electronics enthusiasts, students, and makers. It helps users quickly solve circuit tasks, decode component markings, and calculate values for resistors and capacitors, speeding up project development.

Highlights
  • Resistor color code calculator
  • SMD resistor code converter
  • LED resistor calculator
  • Series & parallel resistor calculator
  • SMD capacitor code calculator
  • Series & parallel capacitor calculator
Features
Read full description

Tenio: Electronics Toolkit Lab is a practical set of calculators and converters built for makers, students, engineers, and electronics enthusiasts. Quickly solve common circuit tasks, decode component markings, and speed up your projects—right from your phone. Key Features • Resistor Color Code → Value (and Value → Color Code) • SMD Resistor Code → Resistance • LED Resistor Calculator (ideal resistor for your LED circuit) • Series & Parallel Resistor Calculator • Trimpot Code ↔ Resistance Converter • SMD Capacitor Code → Capacitance • Series & Parallel Capacitor Calculator • Capacitor Code ↔ Capacitance Converter Whether you’re prototyping on a breadboard, working on Arduino projects, studying for exams, or designing real circuits—Tenio helps you calculate faster and build with confidence.

About

Circuit Calculator Pro

Features
Read full description

Circuit Calculator Pro is a practical electronics toolkit for students, makers, and engineers. Use 13 calculators in one app: • Ohm's Law (V, I, R, P) • Resistors Series/Parallel • Voltage Divider • LED Resistor • RC Time Constant • Capacitors Series/Parallel • Inductors Series/Parallel • Reactance (Xc/Xl) • Power & Energy • Wire Voltage Drop • LED String • Loaded Divider • E-Series Finder Built-in workflow tools: • Save recent calculations • Organize results into projects and folders • Copy/share results instantly • Export to PDF and image (Premium) Reference library included: • Resistor color code guide • Capacitor code guide • Formula cheat sheets • Electronics glossary Circuit Builder (Premium): • Drag-and-drop components • Connect nodes on a grid canvas • Run circuit analysis and view node voltages/currents • Save and reopen circuit files Free plan includes core calculators with ads. Premium is a one-time purchase that unlocks advanced calculators, circuit builder access, expanded limits, and ad removal.

Screenshots

Tenio4 screens
Circuit Calculator Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Tenio at none against Circuit Calculator Pro's 1. Tenio also leads on ads (none vs shown) and device support (3 vs 1). On price 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

Both are free to download. Circuit Calculator Pro sells 1 one-off in-app purchase. Tenio asks for nothing beyond the download.

Scorecard4 real differences · 5 level
Tenio versus Circuit Calculator Pro: the parameters behind the verdict, then further details
ParameterTenioCircuit Calculator Pro
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 months—
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.0
Further details — not scored
Size7 MB10 MB
Age rating4+4+
DeveloperSamuel Rodas ArocheChatStick Company Limited

In-app purchases

None

Tenio

No in-app purchases

1 purchases

Circuit Calculator Pro

One-time1
  • Unlock All Features$2.99

Questions

Is Tenio free?
Tenio is free to download, with no in-app purchases.
Is Circuit Calculator Pro free?
Circuit Calculator Pro is free to download, with in-app purchases available.
Do Tenio or Circuit Calculator Pro have ads?
Circuit Calculator Pro shows ads; Tenio does not.

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