# DCircuit Lab vs JazRec

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.

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.

## The numbers

| Metric | DCircuit Lab | JazRec |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/dcircuit-lab/id382544208/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Fabrizio Boco](https://appshunter.io/developer/466239616) | [Dias Zhumagaliyev](https://appshunter.io/developer/1611954008) |

## What reviewers say

### DCircuit Lab

[App page](https://appshunter.io/ios/app/dcircuit-lab/id382544208)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### JazRec

[App page](https://appshunter.io/ios/app/jazrec-ai-audio-notes/id6757497777)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JazRec Premium | $19.99 | per month |
| Year Premium | $199.99 | per year |


## Frequently asked questions

### Is DCircuit Lab free?

DCircuit Lab costs $3.99, with no in-app purchases.

### Is JazRec free?

JazRec is free to download, with in-app purchases available.

### Do DCircuit Lab or JazRec have ads?

Neither DCircuit Lab nor JazRec shows ads.

### Which is updated more often, DCircuit Lab or JazRec?

DCircuit Lab ships an update every 10 months, and JazRec every 10 days. Most recently, DCircuit Lab was updated on October 16, 2026 and JazRec on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*