# Sharper vs Ruby Rhythm

Sharper and Ruby Rhythm are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads 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.

On the App Store both sit at effectively the same score — 5.0 for Sharper against 5.0 for Ruby Rhythm. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | Sharper | Ruby Rhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sharper-decision-diary/id6471383280/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/ruby-rhythm/id6502735923/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | Free |
| Size | 2 MB | 3 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Mercer](https://appshunter.io/developer/1139082295) | [Vampire Squids LLC](https://appshunter.io/developer/1693677900) |

## What reviewers say

### Sharper

[App page](https://appshunter.io/ios/app/sharper-decision-diary/id6471383280)

This app helps you make better decisions by sending messages to your future self. Reflect on past choices to gain clarity and improve future outcomes. It's a private tool for personal growth and understanding your decision-making patterns.

**Highlights:** Send messages to your future self, Reflect on past decisions, Gain insight into choices, Set timely reminders for reflection, Private and on-device storage

**Features:** macOS Compatibility

**In-app purchases:** none


### Ruby Rhythm

[App page](https://appshunter.io/ios/app/ruby-rhythm/id6502735923)

This app offers a unique approach to period tracking by integrating Traditional Chinese Medicine (TCM) principles. It helps users understand their cycle phases, energy levels, mood, and overall well-being with a user-friendly interface and cute animal illustrations.

**Highlights:** Period and cycle tracking, Traditional Chinese Medicine integration, Cycle phase identification (Inner Winter, Spring, Summer, Autumn), Insights into energy, mood, and well-being, User-friendly interface, Data privacy: local storage, no sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sharper free?

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

### Is Ruby Rhythm free?

Ruby Rhythm is free to download, with no in-app purchases.

### Which has better reviews, Sharper or Ruby Rhythm?

Sharper and Ruby Rhythm are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Sharper or Ruby Rhythm have ads?

Neither Sharper nor Ruby Rhythm 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.*