Constellation Diary vs Mammoth AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Constellation Diary
Record your daily emotions and assign them colors to visualize your feelings. Build a personalized solar system where each celestial body represents an entry, creating a unique visual diary of your inner world.
- Emotional journaling
- Color association for feelings
- Personalized solar system creation
- Visual diary of emotions
- Daily entry logging
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This app allows people to write down how they feel and associate a color to it, and build their own solar system within the app. This app is designed to be almost like a diary or a place to write things down to later view.
Mammoth AI
This AI assistant builds a persistent memory vault from your shared information, learning and improving its skills over time. It integrates with your messaging platforms to take action and offers customizable autonomy levels for task management. Your data remains on your own infrastructure.
- Persistent memory vault
- Self-improving skills
- Messaging platform integration
- Customizable autonomy levels
- Runs on your own infrastructure
- Open source
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Stop juggling subscriptions. Mammoth gives you instant access to the world's best AI models - all in one clean, simple app. Don't go extinct. Stay at the top of AI. New models launch every week, and picking the "best" one is a full-time job. Mammouth solves that: one subscription, every leading model, always up to date. ACCESS ALL THE TOP AI MODELS Chat and create with the models everyone's talking about. FEATURES BUILT FOR REAL WORKFLOWS One-click reprompting - send your prompt to another model instantly and compare answers Mammoth Projects - organize your work by topic Upload images and files for the AI to analyze Voice chat for hands-free conversations AI-powered web search for up-to-date answers Switch models anytime, mid-conversation Sync seamlessly across all your devices YOUR DATA STAYS YOURS Fully GDPR compliant Your content is never used to train AI models Our providers don't retain your prompts, no history stored on their end Delete your history anytime, right from your account settings Join thousands of professionals, creators, and curious minds who use Mammoth every day to stay ahead in the fast-moving world of AI. Download Mammoth today and never fall behind again. Privacy Policy:https://sites.google.com/view/mammouthprivacy/home Terms of Use: https://sites.google.com/view/mammouthterms/home
Screenshots
Verdict
The clearest difference is rating: Constellation Diary at 5.0 against Mammoth AI's 4.4. Constellation Diary also leads on in-app purchases (none vs 3). Mammoth AI's advantage is ratings volume (17 vs 1). On price, update cadence, ads 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
Both are free to download. Mammoth AI sells 3 in-app purchases, starting at $4.99 per 7 days. Constellation Diary asks for nothing beyond the download.
Constellation Diary holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Mammoth AI has 17 ratings behind it against 1, so its average is the more settled of the two.
Constellation Diary ships an update monthly, Mammoth AI every 3 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.
| Parameter | Constellation Diary | Mammoth AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.4 (17 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 17 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Sproul | Marut Kumar |
In-app purchases
Constellation Diary
No in-app purchases
Mammoth AI
- Hermes AI Subscription$4.997 Days
- Hermes AI Weekly Subscription3 Days trial$9.997 Days
- Hermes AI Yearly Subscription$39.991 Year
Questions
Is Constellation Diary free?
Is Mammoth AI free?
Which has better reviews, Constellation Diary or Mammoth AI?
Do Constellation Diary or Mammoth AI have ads?
Which is updated more often, Constellation Diary or Mammoth AI?
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