DCircuit Lab vs JazRec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DCircuit Lab
Design and simulate digital circuits with a comprehensive set of tools. Explore combinatorial and sequential logic, including gates, flip-flops, and custom components. Dynamic simulation with timing charts helps analyze circuit behavior.
- Combinatorial and sequential circuit simulation
- Single-step and step-by-step simulation modes
- Dynamic simulation with timing charts
- Wide range of logic gates and flip-flops
- Custom component creation via truth tables
- Integrated video tutorials
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DCircuit Lab is a tool to simulate combinatorial and sequential digital circuits. Circuits can be simulated in two ways: 1) one single step: all the outputs values are evaluated at the same time 2) step by step: outputs and gates are evaluated one step a time If circuit contains clock inputs, its simulation is dynamic. This means that outputs change accordingly to the clocks. During this dynamic simulation, user can change inputs values to study the circuit behavior which is also provided via a timing chart. Circuits are built using basic components, gates and flip-flops: * inputs (three state: 1, 0, X - undefined) * outputs * wires * NOT, AND, NAND, OR, NOR, XOR gates with any number of inputs * Flip-flop RS, JK, T, D (Positive or Negative Edge Triggered and with Set and Reset Inputs) * Multiplexers with any number of inputs * Demultiplexers with any number of outputs * Fully configurable Clocks * Custom Components defined by their truth table * BCD to 7 Segments Display Decoder * 7 Segments Display Some video tutorials are available directly from the application to learn how to use it.
JazRec
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JazRec is a powerful audio recording app that uses advanced AI to transcribe, summarize, and analyze your conversations. Whether you're in a meeting, attending a lecture, or capturing personal thoughts, JazRec turns your recordings into actionable, searchable notes. 26 SPECIALIZED ANALYSIS TEMPLATES Choose from 26 AI-powered templates across 8 categories: • Work & Business - Meeting notes, interviews, sales calls, brainstorms, 1-on-1s, investor pitches, conflict resolution • Personal & Relationships - Voice journals, date analysis, partner talks, family discussions, conversations with children • Learning & Education - Lecture notes, expert consultations, language practice sessions • Content & Media - Podcast summaries, content interviews, voice-to-social-post conversion • Health & Wellness - Medical consultation notes, therapy session tracking • Legal & Finance - Lawyer consultations, financial advisor meetings, contractor discussions • Everyday Life - Daily reflections, decision tracking KEY FEATURES • One-Tap Recording - Start recording instantly with visual waveform feedback • AI-Powered Analysis - Get comprehensive summaries with mood detection, key takeaways, and topic extraction • Multi-Language Support - Record in any language; AI responds in the same language • iCloud Sync - Access your recordings across all your Apple devices • Background Recording - Keep recording while using other apps • Smart Search - Find any recording by title, content, or topic • Re-Analyze Anytime - Apply different templates to the same recording WHAT YOU GET Each analysis includes: • Auto-generated title • Mood and dynamics assessment • Detailed essence summary • Key highlights and quotes • 10-15 actionable takeaways • 15-30 extracted topics FREE vs PREMIUM Free: • 5 recordings per month • General Summary template • Full playback and search Premium: • Unlimited recordings • All 26 specialized templates • Priority processing PRIVACY FOCUSED Your recordings are stored locally and synced via your personal iCloud account. We don't have access to your audio files or transcriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sugar-wishbone-ba7.notion.site/Privacy-Policy-2e1580a1340f80aa87fcff7a5fd8324c Download JazRec today and never lose an important conversation again.
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Verdict
The clearest difference is price: JazRec at Free against DCircuit Lab's $3.99. JazRec also leads on update cadence (every 10 days vs every 10 months). DCircuit Lab's advantage is in-app purchases (none vs 2). 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
JazRec is free to download; DCircuit Lab costs $3.99 up front. JazRec sells 2 in-app purchases, starting at $19.99 per month. DCircuit Lab asks for nothing beyond the download.
DCircuit Lab ships an update every 10 months, JazRec every 10 days. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.
| Parameter | DCircuit Lab | JazRec |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.0 (3 ratings) — better | — |
| Positive reviews | 11.1% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 10 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | Fabrizio Boco | Dias Zhumagaliyev |
In-app purchases
DCircuit Lab
No in-app purchases
JazRec
- JazRec Premium$19.991 Month
- Year Premium$199.991 Year









