Comparison

Circuit Calculator vs VoltLab

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

Head to head
About

Circuit Calculator

This application allows users to build, simulate, and solve linear AC and DC electrical circuits. It is designed for students, engineers, and electronics enthusiasts to aid in study, verification, and practical circuit analysis. Users can visualize current flow and analyze component values directly on schematics.

Highlights
  • Build schematics with drag-and-drop components
  • Solve for steady-state voltages and currents
  • Real-time DC current flow animation
  • Compute power values and Thévenin/Norton equivalents
  • Supports rectangular and polar notation
  • Save, export, and import circuits
  • Interactive user guide and example circuits
Features
Read full description

Circuit Calculator - The Essential Tool for Circuit Solutions: Solve circuit problems effortlessly! Circuit Calculator is the go-to app for students, engineers, and electronics enthusiasts. Quickly build, simulate, and solve linear AC and DC circuits - ideal for study, verification, or practical use. Build, Solve & Review Results: • Create schematics by dragging, rotating, and snapping components • Tap solve to compute steady-state voltages and currents • Follow DC current flow with real-time animations • Zoom and pan around to review results directly on the schematic • Tap detailed analysis to also compute power values Perfect for Learning & Quick Verification: Whether you're checking your homework or confirming a design, Circuit Calculator supports both rectangular and polar notation - just like textbook problems. It focuses on steady-state behaviour in linear circuits, making it ideal for academic and professional use. Other Key Features: • Interactive user guide • Pre-built example circuits • Supports DC and sinusoidal AC circuits • Computes Thévenin and Norton equivalents • Save to iCloud for access across devices • Export/share circuits or PDF snapshots • Import circuits from others • Undo/redo and copy/paste support Available Components: • Independent Ideal Current Sources • Independent Ideal Voltage Sources • Current-Controlled Current Sources • Current-Controlled Voltage Sources • Voltage-Controlled Current Sources • Voltage-Controlled Voltage Sources • Resistors, Capacitors & Inductors • Mutually Coupled Inductors (AC only) • Impedances (AC only) • Diodes (DC only) Learn More & See It in Action! Want to see Circuit Calculator in action? Visit our website or check out our YouTube channel for tutorials!

About

VoltLab

This app simplifies learning electricity through interactive lessons and visual experiments. It offers offline access, quizzes with detailed solutions, and a reference guide for formulas. Ideal for students and educators seeking to understand electrical concepts.

Highlights
  • Interactive circuit building
  • Visual experiment results
  • Self-paced learning
  • Quizzes with step-by-step solutions
  • Offline access to lessons
  • Reference guide for formulas
Features
Read full description

Physics is easier to understand when you see it in action. In VoltLab, you explore electricity through interactive experiments, while lessons with AI narration help you understand what’s happening — step by step, at your own pace. What’s inside: • AI-narrated lessons — explore electricity with clear explanations and visual examples. • Interactive experiments — put the laws of physics to the test in experiments you control. • Quizzes with worked solutions — solve problems and reinforce your knowledge with detailed explanations. • No ads — immerse yourself in lessons and experiments without ad breaks. • Offline access — keep learning even without an internet connection. • Free content — learn something new and reinforce what you’ve learnt at no cost. Who it’s for: • School students and school leavers — understand what’s behind the formulas and laws in your textbook. • University students and independent learners — connect theory with what you see in the experiments and better understand electrical phenomena. • Teachers and tutors — show in action what’s difficult to explain in words. Download VoltLab — your discovery lab awaits! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://xelzlqhbkncusjefnhma.supabase.co/storage/v1/object/public/terms/privacy_policy.pdf

Screenshots

Circuit Calculator4 screens
VoltLab4 screens

Verdict

The call

The clearest difference is review sentiment: VoltLab at 97% against Circuit Calculator's 53%. VoltLab also leads on update cadence (every 6 days vs monthly) and iOS requirement (15.0 vs 18.0). Circuit Calculator's advantage is in-app purchases (none vs 7). On price, ads 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

Both are free to download. VoltLab sells 7 in-app purchases, starting at $3.99 per month. Circuit Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Circuit Calculator ships an update monthly, VoltLab every 6 days. Both last shipped on October 16, 2026.

Scorecard5 real differences · 5 level
Circuit Calculator versus VoltLab: the parameters behind the verdict, then further details
ParameterCircuit CalculatorVoltLab
PriceFreeFree
Rating—5.0 (381 ratings) — better
Positive reviews52.8% of reviews96.8% of reviews — better
Number of ratings—381 — better
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size2 MB125 MB
Age rating4+4+
DeveloperNeil WoodcockDenis Gladkii

Customer experience

Circuit Calculator

Written reviews36 reviews
Positive52.8%
Neutral2.8%
Negative44.4%

VoltLab

All ratings381 ratings
Positive99.5%
Neutral0.5%
Negative0.0%
Written reviews125 reviews
Positive96.8%
Neutral2.4%
Negative0.8%

In-app purchases

None

Circuit Calculator

No in-app purchases

7 purchases

VoltLab

Subscriptions2
  • VoltLab Pro One Month$3.991 Month
  • VoltLab Pro One Year$12.991 Year
One-time5
  • VoltLab Pro One Year$6.99
  • VoltLab Donat$10.99
  • VoltLab Pro$39.99
Show 2 more
  • VoltLab Donate$49.99
  • Awesome VoltLab Donat$99.99

Questions

Is Circuit Calculator free?
Circuit Calculator is free to download, with no in-app purchases.
Is VoltLab free?
VoltLab is free to download, with in-app purchases available.
Do Circuit Calculator or VoltLab have ads?
Neither Circuit Calculator nor VoltLab shows ads.
Which is updated more often, Circuit Calculator or VoltLab?
Circuit Calculator ships an update monthly, and VoltLab every 6 days. Most recently, Circuit Calculator was updated on October 16, 2026 and VoltLab on October 16, 2026.

Other comparisons