# Biocalendar App vs Polyphasic Sleep Schedules

Biocalendar App and Polyphasic Sleep Schedules are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Biocalendar App | Polyphasic Sleep Schedules |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 21 MB | 35 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harvey Makishima](https://appshunter.io/developer/1770018547) | [Daniel Oakman](https://appshunter.io/developer/1773350377) |

## What reviewers say

### Biocalendar App

[App page](https://appshunter.io/ios/app/biocalendar-app/id6711344227)

**Features:** macOS Compatibility

**In-app purchases:** none


### Polyphasic Sleep Schedules

[App page](https://appshunter.io/ios/app/polyphasic-sleep-schedules/id6743132833)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Biocalendar App free?

Biocalendar App is free to download, with no in-app purchases.

### Is Polyphasic Sleep Schedules free?

Polyphasic Sleep Schedules is free to download, with no in-app purchases.

### Do Biocalendar App or Polyphasic Sleep Schedules have ads?

Neither Biocalendar App nor Polyphasic Sleep Schedules shows ads.

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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.*