Your daily
puzzle habit.

18 hand-crafted games across three categories — words, numbers, and colors. Fresh puzzles every morning. Build streaks, earn rest days, never lose progress.

Or try the games in your browser — no signup, unlimited replays, just the games.

Cipher game completed with detective mongoose
CageCalc number puzzle in progress

What you get

Built for the daily habit.

Three categories of six games each. Pick the ones you want to play. Switch anytime. Each category is a complete daily experience.

A

18 hand-crafted games

Six word games, six math & logic games, six color & pattern games. Each with a unique mechanic.

Fresh every day

Daily puzzles seeded from the date. Today's puzzle is the same for everyone — race friends to the top score.

Streaks that hold

Build a daily streak across all your games. Win 6+ games in a day to earn rest day shields for when life gets busy.

10 beautiful themes

Five clean themes plus five immersive themes with ambient particle effects — Space, Forest, Deep Sea, Snow, Volcano.

M

Your mongoose avatar

14-layer customizable mongoose with millions of unique combinations. Hair, eyes, fur patterns, accessories.

Local-first, offline-ready

Play without an account. Scores save locally. Sign in to sync across devices and play with friends.

The lineup

Three categories. Six games each.

Each category is a self-contained daily experience worth 9,000 points (6 games × 1,500 max). Switch with one tap.

Word Games

  • Hinto Guess the 5-letter word
  • Kinship Group 16 words into 4 categories
  • Anagram Unscramble letters into words
  • Crossword Fill the mini grid from clues
  • Word Snake Trace a connected path of words
  • Cipher Crack the substitution code

Numbers & Logic

  • Nixnum Cross out numbers to hit row/col targets
  • Target Reach the target with the numbers given
  • MathPath Trace a path that adds up
  • NumCross A crossword, but with digits
  • CageCalc Make every cage add up just right
  • Shikaku Slice the grid into neat rectangles

Colors & Patterns

  • Codeweave Route colored threads to fill the grid
  • Mosaic Solve a color nonogram puzzle
  • Tincture Color the map so no neighbors match
  • Duet Balance two colors on a grid
  • Volley Set ball directions for a chain reaction
  • Flood Flood the board with one color

Need help?

Support & FAQ

Common questions about Mongi. If you can't find an answer here, get in touch — we read every message.

How do I find all 18 games?

Mongi organizes 18 games into 3 categories (Word, Numbers, Colors), each containing 6 games. The pill-shaped tabs at the top of the home screen let you switch between categories. Tap any pill ("English", "Numbers", "Colors") to see that category's 6 games. You can also add or remove categories from Settings → My Game Categories.

Why are the games split into categories?

Each game has a maximum daily score of 1,500 points, so the per-category daily maximum is 9,000 points. Leaderboards are per category — you only need to play one category to compete for a top spot. The structure also makes it easy to add more languages later (French, German, Swedish, Chinese coming).

Do I need an account to play?

No. Mongi is fully playable without an account — all 18 games, streaks, stats, avatar customization, and themes work offline. Sign in (with Apple, Google, or Facebook) only if you want to sync scores across devices, add friends, or compete on leaderboards.

What's a rest day?

If you win 6+ games in a day without losing, you earn a "rest day" shield (max 2 stored). On days you don't play, a shield is automatically consumed to protect your streak. It's there for the busy days when life gets in the way.

How do I delete my account and data?

Sign in, go to Settings → Profile, scroll to the bottom, and tap "Delete Account". This permanently removes your profile, scores, friendships, and all other personal data from our servers. You can also email support@jadecircuit.com to request deletion.

What platforms does Mongi run on?

Mongi is built for iOS, Android, and HarmonyOS NEXT. It works on phones and tablets. A web version is in development.

Are there ads or in-app purchases?

Not in v1. Mongi is free with no ads on the puzzles themselves and no paywalls on any of the 18 games. We may introduce optional cosmetic upgrades or an ad-supported "unlimited mode" in future versions, but the daily puzzle experience will always be free.

I found a bug or have a feature request.

Please email support@jadecircuit.com with the device model, OS version, and what happened. Screenshots help. We typically respond within 24 hours.

Still stuck?

Drop a line and we'll get back to you within 24 hours, usually faster.

Contact support

Your data

Privacy Policy

Mongi is built local-first. Most data stays on your device. When you sign in, here's exactly what we collect and how we use it.

Last updated: 28 May 2026 · Data controller: Jade Circuit OÜ, Estonia (EU)

1. What we collect

When you use Mongi without an account (including the play-in-browser demo at mongi.app/play), no personal data tied to your identity is sent to our servers — your game data stays on your device. We do collect anonymous, aggregate usage analytics (see below). When you sign in, we may additionally collect:

  • Account information: your name, email address, and profile photo from your sign-in provider (Apple, Google, or Facebook).
  • Game data: scores, streaks, statistics, achievements, and game progress.
  • Friend connections: friend codes and friend lists if you use the social features.
  • Avatar configuration: your custom mongoose avatar settings.
  • Push-notification tokens: if you enable streak reminders.
  • Crash reports: anonymous diagnostic data for bug fixing — no personal data included.
  • Anonymous usage analytics: aggregate activity such as games started/completed, which category is played, and app opens. Collected via Firebase Analytics with no personal identifiers and no cross-site tracking — used only to understand overall activity and improve the games.

2. How we use it

  • Save your scores and progress across devices
  • Show your ranking on leaderboards and weekly leagues
  • Maintain your streak and game history
  • Enable friend connections and score sharing
  • Send streak-reminder notifications (if enabled)
  • Improve the app through crash reports

3. Where your data is stored

Your data is stored in Google Firebase (Cloud Firestore), hosted in the EU (europe-west1 region, Belgium). Firebase is operated by Google and subject to Google's security and privacy standards. Authentication is handled by Firebase Authentication. Local data lives on your device using secure platform storage.

4. Third-party services

  • Google Firebase (Firestore, Authentication, Cloud Functions) — data storage, accounts, server-side logic
  • Firebase Analytics — anonymous, aggregate usage metrics (no personal identifiers)
  • Sign in with Apple — optional sign-in method (iOS)
  • Google Sign-In — optional sign-in method
  • Facebook Login — optional sign-in method
  • Firebase Crashlytics — anonymous crash reports

5. Data retention & deletion

We keep your data while your account is active. You can delete your account and all associated data anytime from Settings → Profile → Delete Account. This permanently removes your profile, scores, friendships, and all other personal data from our servers. If your account is inactive for over 24 months, we may remove your data automatically.

6. Data sharing

We do not sell your data. Your display name, avatar, and scores may be visible to other players through leaderboards, weekly leagues, and friend connections. Data is processed by Google Firebase as described above. We do not share data with advertisers in the current release.

7. Your rights (GDPR)

Under EU law, you have the right to:

  • Access your personal data
  • Correct inaccurate data (edit your profile in the app)
  • Delete your data (Settings → Profile → Delete Account, or email us)
  • Export your data (email us for a data export)
  • Object to data processing (email us)

For any privacy request, email support@jadecircuit.com.

8. Children

Mongi is not directed at children under 13. We do not knowingly collect data from children under 13. If you believe a child has created an account, contact us at support@jadecircuit.com and we will delete the account.

9. Changes to this policy

We will notify you in-app and ask for fresh consent if we make material changes to this policy.

10. Contact

Data controller: Jade Circuit OÜ, Estonia, EU
Email: support@jadecircuit.com