# Rapid Cycling vs Eunoia Signals

Rapid Cycling and Eunoia Signals are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Rapid Cycling | Eunoia Signals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eunoia-signals/id6762066236/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | — | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | 18.2 | **18.1** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Michal Horowic](https://appshunter.io/developer/1812494450) | [Thomas Bryant](https://appshunter.io/developer/1892732237) |

## What reviewers say

### Rapid Cycling

[App page](https://appshunter.io/ios/app/rapid-cycling/id6745490100)

**Features:** macOS Compatibility

**In-app purchases:** none


### Eunoia Signals

[App page](https://appshunter.io/ios/app/eunoia-signals/id6762066236)

This app helps you understand your mental state by tracking your mood, energy levels, and feelings. It analyzes your patterns over time, optionally integrating biometric data from Apple Health for a comprehensive view. Designed for personal awareness, it offers insights into mood shifts and trends.

**Highlights:** Daily mood and energy check-ins, Optional notes and tags for nuance, Personal signal score based on patterns, Integration with Apple Health biometrics, Trend visualization over time, On-device data processing for privacy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rapid Cycling free?

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

### Is Eunoia Signals free?

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

### Do Rapid Cycling or Eunoia Signals have ads?

Neither Rapid Cycling nor Eunoia Signals shows ads.

### Which is updated more often, Rapid Cycling or Eunoia Signals?

Rapid Cycling ships an update every 6 weeks, and Eunoia Signals every 6 weeks. Most recently, Rapid Cycling was updated on October 30, 2026 and Eunoia Signals on November 5, 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.*