# DCircuit Lab vs Polyphasic Sleep

The clearest difference is price: Polyphasic Sleep at Free against DCircuit Lab's $3.99. Polyphasic Sleep also leads on rating (5.0 vs 3.0) and update cadence (weekly vs every 10 months). DCircuit Lab's advantage is in-app purchases (none vs 5). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Polyphasic Sleep is free to download; DCircuit Lab costs $3.99 up front. Polyphasic Sleep sells 5 in-app purchases, starting at $4.99 per 7 days. DCircuit Lab asks for nothing beyond the download.

Polyphasic Sleep holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

DCircuit Lab ships an update every 10 months, Polyphasic Sleep weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | DCircuit Lab | Polyphasic Sleep |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/dcircuit-lab/id382544208/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polyphasic-sleep-polynap/id6746938552/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 3 MB | 66 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Fabrizio Boco](https://appshunter.io/developer/466239616) | [SALIM TANER CELIK](https://appshunter.io/developer/1799263246) |

## 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


### Polyphasic Sleep

[App page](https://appshunter.io/ios/app/polyphasic-sleep-polynap/id6746938552)

This app guides users through adopting and maintaining polyphasic sleep schedules. It offers personalized recommendations, smart alarms, and progress tracking to help users gain more control over their time and build consistent sleep routines.

**Highlights:** Personalized sleep schedule recommendations, Multiple polyphasic sleep schedule exploration, Smart alarms and nap reminders, Progress tracking for adaptation and consistency, Routine-building feedback, Explore various sleep cycles (Everyman, Uberman, etc.)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PolyNap Premium Weekly | $4.99 | per 7 days |
| PolyNap Premium Monthly | $8.99 | per month |
| Premium Annual Discount | $24.99 | per year |
| PolyNap Premium Yearly | $34.99 | per year |
| PolyNap Premium Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is DCircuit Lab free?

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

### Is Polyphasic Sleep free?

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

### Which has better reviews, DCircuit Lab or Polyphasic Sleep?

Polyphasic Sleep is rated higher. DCircuit Lab averages 3.0 out of 5 from 3 ratings, while Polyphasic Sleep averages 5.0 from 2 ratings.

### Do DCircuit Lab or Polyphasic Sleep have ads?

Neither DCircuit Lab nor Polyphasic Sleep shows ads.

### Which is updated more often, DCircuit Lab or Polyphasic Sleep?

DCircuit Lab ships an update every 10 months, and Polyphasic Sleep weekly. Most recently, DCircuit Lab was updated on November 1, 2026 and Polyphasic Sleep on October 30, 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.*