# BiorhythmsPlus vs Biorhythm Calc

The clearest difference is price: Biorhythm Calc at Free against BiorhythmsPlus's $0.99. Biorhythm Calc also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (12.0 vs 18.2). On ads, in-app purchases and device support there is nothing between them.

Biorhythm Calc is free to download; BiorhythmsPlus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BiorhythmsPlus ships an update monthly, Biorhythm Calc every 2 weeks. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | BiorhythmsPlus | Biorhythm Calc |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 1 MB | 24 MB |
| Requires iOS | 18.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Eugene Burk](https://appshunter.io/developer/1793217968) | [Kornel Kaulics](https://appshunter.io/developer/1501407664) |

## What reviewers say

### BiorhythmsPlus

[App page](https://appshunter.io/ios/app/biorhythmsplus/id6741830642)

**Features:** macOS Compatibility

**In-app purchases:** none


### Biorhythm Calc

[App page](https://appshunter.io/ios/app/biorhythm-calc/id6748093533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BiorhythmsPlus free?

BiorhythmsPlus costs $0.99, with no in-app purchases.

### Is Biorhythm Calc free?

Biorhythm Calc is free to download, with no in-app purchases.

### Do BiorhythmsPlus or Biorhythm Calc have ads?

Neither BiorhythmsPlus nor Biorhythm Calc shows ads.

### Which is updated more often, BiorhythmsPlus or Biorhythm Calc?

BiorhythmsPlus ships an update monthly, and Biorhythm Calc every 2 weeks. Most recently, BiorhythmsPlus was updated on October 6, 2026 and Biorhythm Calc on September 27, 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.*