Comparison

Circuit Laboratory vs BionicWords

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

Head to head
About

Circuit Laboratory

Analyze electronic circuits with DC, AC, multifrequency AC, and transient analysis. Draw circuits graphically, modify component parameters, and view voltage and current graphs. Supports various components and offers video tutorials for each.

Highlights
  • DC, AC, Multifrequency AC, and Transient Analysis
  • Graphical circuit drawing
  • Component parameter editing
  • Voltage and current graphing
  • Support for diverse electronic components
  • Circuit saving and sharing
  • Video tutorials for components
Features
Read full description

Circuit Lab is an electronic circuit analysis tool based on the modified node analysis method. Four kind of analysis may be conducted: - DC: linear and non linear circuits with continuous voltage and current sources; - AC: linear e non linear circuits with sinusoidal voltage and current sources; - Multifrequency AC Analysis: linear and non linear circuits with sinusoidal voltage and current sources. It allows to analyze the circuit behavior in a range of frequencies. Useful to study the bandwidth of the circuit; - Transient: linear and non linear circuits, with sinusoidal and pulse voltage sources (available as In App Purchases). User can graphically draw the circuit and then the circuit can be analyzed. Circuit may be controlled by means of the following gestures: - Drag: to move the circuit into the desired position - Tap on a component: to modify the component's parameters - Pinch: to zoom in and out - Double Finger Double Tap: to reset position and zoom level to the original values Tapping DC button, user gets voltage at each circuit's node. Tapping AC button, user gets voltage phasors at each circuit node or the bode graph of the voltage at each circuit node (see BJT 16 - Common Emitter). Phasor graphs may be controlled by means of the following gesture: - Drag: to move the graph into the desired position - Pinch: to zoom in and out - Double Finger Double Tap: to reset position and zoom level to the original values Pressing Transient button, user can analyze circuit's behavior during time and get graphs of voltages and currents function of time. Each circuit can contain: - Resistors - Capacitors - Inductors - Mutual Coupled Inductors - Independent sinusoidal voltage generators - Independent pulse voltage generators - Independent sinusoidal current generators - Controlled voltage generators - Controlled current generators - Operation Amplifier - Diodes - Zener Diodes - Bjt NPN and PNP - Channel-N and Channel-P JFet - Channel-N and Channel-P Mosfet For each component, a short video is available to demonstrate how to insert it into the circuit and edit it's characteristics. Circuits may be easily stored and reused. User can print: - Circuits and component's list - Transient Analysis graphs Circuits can be easily shared through iCloud, by mail in the internal format so that can be reused by other users (on iPad too) and in PDF format. Visit my site for video tutorials and details about operational amplifier's internal model and diode's internal model.

About

BionicWords

Features
Read full description

BionicWords uses RSVP (Rapid Serial Visual Presentation) to display text one word at a time at a fixed focal point. Your eyes stay still. Words flow to you. No skimming, no re-reading, no losing your place. Every word lands exactly where your brain expects it. The secret is the Optimal Recognition Point. Each word is displayed with its natural focal letter highlighted — the exact point where your eye locks when reading. Your brain recognises words faster, processes meaning quicker, and retains more. Start at 200 WPM. Work your way to 600. Push past 900 if you dare. Your reading speed is the only limit. HOW IT WORKS Paste any text, open a file, or load from your library Tap play — words appear one at a time, centred on the focal point Your highlighted focal letter stays fixed, your eyes stay relaxed Adjust speed on the fly — from a gentle 50 WPM to a blazing 1500 WPM WHAT YOU CAN READ Paste any text — articles, study notes, emails, blog posts, book chapters. Import TXT files directly. Upgrade to Pro to import PDFs and EPUBs — BionicWords intelligently strips out page numbers, headers, and formatting noise so you only see the words that matter. SMART READING Not all words are equal. BionicWords automatically pauses slightly longer at sentence endings, clause breaks, and complex words. The rhythm feels natural, not robotic — even at high speeds. SPEED PRESETS FOR EVERY LEVEL Chill (150 WPM) — relaxed, easy comprehension Normal (250 WPM) — average adult reading speed Fast (400 WPM) — comfortable push Rapid (600 WPM) — serious readers Insane (900 WPM) — speed reading territory Ludicrous (1200+ WPM) — test your limits Or set any custom speed with the precision slider and fine-tune buttons — adjustable in real-time, even mid-sentence. TRACK YOUR PROGRESS See your words read, time elapsed, and actual average WPM after every session. Upgrade to Pro for reading streaks, all-time stats, weekly charts, and a full reading history so you can pick up exactly where you left off. DISTRACTION-FREE DESIGN Pure black background. White text. Red focal point. Nothing else. No banners, no pop-ups, no clutter. When you're reading, BionicWords disappears — leaving only the words and your focus. BIONICWORDS PRO — UNLOCK EVERYTHING One-time purchase. No subscription. Keep it forever. Remove all ads Import PDF and EPUB files Reading history and bookmarks Resume where you left off Advanced stats and reading streaks 6 premium themes including Sepia, Midnight, and OLED Extra fonts including OpenDyslexic for accessibility Unlimited daily reading sessions BUILT FOR Students — get through textbooks and papers in half the time Professionals — stay on top of reports, briefs, and industry reading Book lovers — finally finish that reading list Lifelong learners — consume more knowledge, retain more of it Anyone who reads on a screen — which is everyone Your data stays on your device. No account required. No tracking. Just reading, faster.

Screenshots

Circuit Laboratory4 screens
BionicWords4 screens

Verdict

The call

The clearest difference is price: BionicWords at Free against Circuit Laboratory's $5.99. BionicWords also leads on update cadence (every 2 days vs every 12 months). Circuit Laboratory's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

BionicWords is free to download; Circuit Laboratory costs $5.99 up front. BionicWords sells 1 one-off in-app purchase. Circuit Laboratory asks for nothing beyond the download.

UpkeepUpdate frequency

Circuit Laboratory ships an update every 12 months, BionicWords every 2 days. The most recent releases landed on September 5, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Circuit Laboratory versus BionicWords: the parameters behind the verdict, then further details
ParameterCircuit LaboratoryBionicWords
Price$5.99Free — better
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 12 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size128 MB68 MB
Age rating4+4+
DeveloperFabrizio BocoCODENESTLE PTY LTD

In-app purchases

None

Circuit Laboratory

No in-app purchases

1 purchases

BionicWords

One-time1
  • BionicWords Pro$3.99

Questions

Is Circuit Laboratory free?
Circuit Laboratory costs $5.99, with no in-app purchases.
Is BionicWords free?
BionicWords is free to download, with in-app purchases available.
Do Circuit Laboratory or BionicWords have ads?
Neither Circuit Laboratory nor BionicWords shows ads.
Which is updated more often, Circuit Laboratory or BionicWords?
Circuit Laboratory ships an update every 12 months, and BionicWords every 2 days. Most recently, Circuit Laboratory was updated on September 5, 2026 and BionicWords on September 10, 2026.

Other comparisons