# Spiral Journey — Your day and sleep in spirals

> Your day and sleep in spirals (iPhone/iPad app by Carlos Perea.)

- Source: https://appshunter.io/ios/app/spiral-journey/id6760436577 (this page in markdown: same URL + `.md`)
- Developer: [Carlos Perea](https://appshunter.io/developer/1884473372)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 12+
- Requires: iOS 17.0 · 25 MB
- Languages: American English, Arabic, Catalan, French (France), German (Germany), Japanese, Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2026-04-01
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/spiral-journey/id6760436577/reviews.md

## What is Spiral Journey?

Spiral Journey draws your Apple Health sleep data as a spiral that grows one turn per night. Drag a cursor
  through time and each turn colors in with that night's phases: deep, REM, light, and wake periods.          
                                                            
  What it does?                                                                                                
                                                            
  • Reads from Apple Health: sleep stages, heart rate, HRV (SDNN), wrist temperature, daylight exposure,      
  steps, workouts, menstrual cycle, high HR events.
  • Draws the spiral flat 2D, logarithmic 2D, or 3D with perspective. Archimedean or logarithmic growth.      
  • DNA tab: RealityKit 3D double helix. Compare against yesterday, the weekly average, or your best night.   
  With 2+ weeks of data it detects recurring patterns using DTW + agglomerative clustering and surfaces them  
  as motifs with auto-generated names.                                                                        
  • Sleep triangle: each 15-minute epoch sits between three vertices (Awake, REM, Deep). Light sleep (N2)     
  lands in the interior. Vertex centers are calibrated with published data from 155+ subjects (HMC +          
  Sleep-EDF).
  • NeuroSpiral 4D torus: sleep trajectory on a Clifford torus with 16 tesseract states. CSV export.          
  • Trends tab: this week vs last, night-by-night breakdown, Lomb-Scargle periodogram for detecting 24-hour,  
  weekend, and 28-day cycles.                                                                                 
  • Prediction: aligns your current week with similar past weeks and proposes bedtime and wake time for       
  tonight.                                                                                                    
  • Coach tab: day summary and a proposed sleep window based on your chronotype.
  • Widgets: spiral and circadian state on the home screen.                                                   
  • Apple Watch: simplified spiral and 3D torus.            
  • Dream journal by voice (on-device transcription) or text. With iOS 26 and Apple Intelligence available, it
   summarizes patterns using local models.                                                                    
  • Peer comparison via Multipeer Connectivity: two nearby iPhones exchange aggregated metrics, not raw data.
                                                                                                              
  What it doesn't do:                                        
                                                                                                              
  • No user accounts.                                       
  • No data sent to any server.
  • No advertising.
  • No in-app purchases.                                                                                      
  
  All analysis runs on your iPhone. Data only leaves the device if you enable iCloud Sync (optional, across your own devices).                                        

  Languages: Spanish, English, Catalan, French, German, Japanese, Simplified Chinese, Arabic.


## Version history (last 2 releases)

### 1.1.1 — 2026-04-25

• Sleep patterns and mutations now appear after 2 weeks of data (previously 4).
  • Sleep triangle redesigned: each vertex is a pure phase (Awake, REM, Deep). Light sleep sits in the        
  interior.                                                                                                   
  • Three new buttons in the DNA tab: highlight patterns on the helix, rerun the analysis, filter the helix by
   date range.                                                                                                
  • Interactive legend explaining what each pattern name means.
  • Visible diagnostics when the algorithm finds no patterns: tells you exactly why (not enough data, weeks   
  too similar, weeks too varied).                                                                             
  • Fixed: the week vs week comparison stayed empty even with plenty of data.
  • Lower battery use during paused visualizations.                                                           
  • Translations and minor fixes.

### 1.0 — 2026-04-01

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Kairis: Circadian Rhythm](https://appshunter.io/ios/app/kairis-circadian-rhythm/id6759058817) | — | Free | Health & Fitness |
| [Sleep Shield: Bedtime Blocker](https://appshunter.io/ios/app/sleep-shield-bedtime-blocker/id6758320072) | — | Free | Health & Fitness |
| [Maxi Training](https://appshunter.io/ios/app/maxi-training/id6741584428) | — | Free | Health & Fitness |
| [Riseo: Night Shift Tracker](https://appshunter.io/ios/app/riseo-night-shift-tracker/id6758026412) | 5.0 (1) | Free | Health & Fitness |
| [MyVitaminsApp](https://appshunter.io/ios/app/myvitaminsapp/id6760433358) | 5.0 (1) | Free | Health & Fitness |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*