KALKUL vs Calmae
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
KALKUL
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the feeling of another future [0x036] how does it feel? why are you here, why not on another path of spacetime? you are here because you are curious. you are here because you want to feel more. KALKUL is a sub-movement to explore alternate branches of technology. a KALKUL is something you can collect and experience. download the app and apply for your first KALKUL. a key to a secret space in Tokyo. another future is possible.
Calmae
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Calmae is your private daily ritual for emotional wellness. A safe, gentle space to pause and check in with yourself. No pressure, no toxic productivity, just soft support. HOW IT WORKS - Choose your mood from 6 gentle options - Write one line about how you are feeling (optional) - Receive a beautiful mood card with supportive encouragement - Track your emotional patterns in your private timeline - Build a streak that celebrates showing up for yourself WHY CALMAE IS DIFFERENT No Toxic Productivity We will not guilt you about streaks or send pushy notifications. Rest is not failure - it is repair. Truly Private Your feelings are yours alone. No social feeds, no comments, no likes. Just you. Beautiful and Calming Soft gradients in peach, lavender, and sage. Designed to feel like a warm hug, not a clinical tracker. Judgment Free Space Whether you are feeling bright, anxious, drained, or proud, you are allowed to feel it all without shrinking. Permission to Pause You do not need to fix your feelings. You just need to acknowledge them. That is enough. FEATURES - 6 carefully crafted moods (calm, bright, anxious, drained, proud, low) - Gorgeous mood cards with gentle gradients - Private timeline to revisit past check ins - Streak tracking that celebrates, never shames - Supportive messages that meet you where you are - Quick 1 minute daily ritual - No social features, just you and your feelings PREMIUM - AI powered weekly emotional and couple insights - Custom mood themes and colors - Export your timeline as a journal - Priority support Calmae is for anyone who wants to understand their emotions better without the pressure of self improvement. It is for the days when you just need something to say: "You are allowed to feel this way." Your heart deserves a soft place to land. Privacy first. Gentle always. No judgment, ever. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calmae.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: KALKUL at none against Calmae's 2. KALKUL also leads on update cadence (every 6 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Calmae sells 2 in-app purchases, starting at $4.99 per month. KALKUL asks for nothing beyond the download.
KALKUL ships an update every 6 days, Calmae every 6 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.
| Parameter | KALKUL | Calmae |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days โ better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 16.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 71 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Kalkul Inc. | Robin Richard R |
In-app purchases
KALKUL
No in-app purchases
Calmae
- Calmae Plus Monthly$4.991 Month
- Calmae Plus Annual7 Days trial$44.991 Year









