Comparison

WaveSpell vs Rytha

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WaveSpell

This app helps you discover personal patterns and cycles using a modern calendar system. Explore daily insights, relationship dynamics, and place-based context. Unlock deeper understanding of yourself and the world around you.

Highlights
  • Daily Kin insights
  • Relationship resonance
  • Place-based context
  • 260-day cycle navigation
  • Reference library
  • Birth signature exploration
Features
Read full description

WaveSpell is a modern Tzolk’in calendar and reflection app designed to help you notice patterns across days, personal cycles, relationships, and place. See your daily Kin and explore the tone, seal, color, and themes associated with each day. WaveSpell supports both the traditional GMT Tzolk’in count and the Dreamspell count, with calculations handled consistently throughout the app. Today brings the current day into focus with personal guidance, reflections, relationship context, and changing signals. Self explores your birth signature, archetype, tone role, color, strengths, patterns, and growth themes. People lets you add the people who matter to you and explore relationship resonance and timing. World adds place-based context through geographic timing and planetary world-line tools. Cycles makes the larger 260-day pattern easier to explore and navigate. Library gives you a deeper reference for the tones, seals, cycles, and concepts behind the system, including 13 original Tone Tome artworks. WaveSpell+ unlocks the full experience with monthly or annual subscription options. Eligible new subscribers can begin with a 3-day free trial. Subscriptions are managed through your Apple account and can be cancelled before renewal. WaveSpell is intended for personal reflection and informational purposes. It does not provide medical, psychological, financial, or other professional advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Rytha

Features
Read full description

Rytha accompanies your everyday life – quietly, on your own device. Follow your personal biorhythm for body, soul and mind, note what matters in your diary, and see how sun and moon shape your day. On your own, or together with a partner. WHAT RYTHA GIVES YOU • Biorhythm cards for body, soul and mind, with the trend compared to yesterday • A personal diary: a thought, a mood, a photo – ‚ as much or as little as you like • History and calendar, so you can see how your days connect • Sky calendar for your location: sunrise and sunset, moon phase and illumination, zodiac sign • Name days from the German calendar • Profiles for several people, and an optional link between two profiles to view their rhythms side by side • A personal review as a PDF you can keep or share • Home Screen widget for a glance at today • App lock with Face ID, Touch ID or your device passcode • Backup and restore, as a file you control YOUR DATA STAYS YOURS Rytha keeps your profiles, diary entries and attachments only on this device. There is no account, no cloud sync, and none of your data is sent to external servers. A backup is a local file – you decide where it goes and who sees it. Your location is used solely to calculate sun and moon times, and only after you allow it. PREMIUM, WITHOUT A SUBSCRIPTION The personal PDF review and linked partner profiles are Premium features. Buy once, keep it forever. No subscription, no recurring charges. A NOTE ON BIORHYTHM Biorhythm curves are calculated from your date of birth using fixed cycles. They are an aid for reflection, not a scientific measure. Rytha is not a medical app and does not give health advice.

Screenshots

WaveSpell4 screens
Rytha4 screens

Verdict

The call

The clearest difference is iOS requirement: WaveSpell at 16.4 against Rytha's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. WaveSpell sells 2 in-app purchases, starting at $8.99 per month and Rytha sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
WaveSpell versus Rytha: the parameters behind the verdict, then further details
ParameterWaveSpellRytha
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 4 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better18.0
Further details — not scored
Size87 MB3 MB
Age rating4+4+
DeveloperJeremy CaseThomas Stahmer

In-app purchases

2 purchases

WaveSpell

Subscriptions2
  • WaveSpell+ Monthly3 Days trial$8.991 Month
  • Wavespell + Annual3 Days trial$79.991 Year
1 purchases

Rytha

One-time1
  • Rytha Premium$5.99

Questions

Is WaveSpell free?
WaveSpell is free to download, with in-app purchases available.
Is Rytha free?
Rytha is free to download, with in-app purchases available.
Do WaveSpell or Rytha have ads?
Neither WaveSpell nor Rytha shows ads.

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