Ringle vs Zero21 Card Game
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Ringle
A fingertip puzzle game with simple controls and deep strategy. Choose from three modes to play at your own pace, enjoying minimal visuals and satisfying feedback. It offers a rewarding experience for quick breaks or focused play sessions.
- Intuitive fingertip controls
- Deep, repeatable strategy
- Three game modes: Relaxed, Normal, Rush
- Minimalist visuals
- Satisfying feedback
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Ringle — A fingertip puzzle that pairs simple, intuitive controls with deep, repeatable strategy. Three modes — Relaxed, Normal, and Rush — let you play at your pace, from quick breaks to focused runs. Minimal visuals and satisfying feedback make every session feel rewarding. Contains banner ads.
Zero21 Card Game
This number puzzle game challenges you to keep your score between 0 and 21 by collecting cards. Utilize power-up cards and strategic choices to navigate diverse levels and daily challenges. It's a fun, relaxing way to train your brain.
- Keep score between 0 and 21
- Collect number cards
- Use power-up cards
- Unlock new card collections
- Daily challenges
- Diverse card layouts
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"ZERO21 CARD GAME Zero21 Card Game is a number games with solitaire card. It is fun, relax but helps to train your brain. ***HOW TO PLAY*** The game rule is simple: Try to stay between 0 and 21. - Collect the number card on the board - Choose the right one to keep the sum lower than 21 and greater than 0 - Use the power up cards to help you solve this math game ***FEATURES*** - PICK YOUR STYLE: Many unique stylish card collections for your choice to play to keep things fresh everyday. - AMAZE IN EVERY LEVEL: Diversity card layouts at each level let the game more interesting. - FINISH DAILY CHALLENGE to unlock new card collections. - Golden card keeps your current number at the golden one. - See the next number with forseen card. - Hold button help to keep the card for the next move. - Remove the unused card with Delete button. You should not miss this mathgame because it is TOTALLY FREE and help you BE SMARTER everyday!
Screenshots
Verdict
The clearest difference is rating: Zero21 Card Game at 4.0 against Ringle's 1.0. Zero21 Card Game also leads on ratings volume (3 vs 1) and iOS requirement (15.6 vs 18.0). Ringle's advantage is update cadence (every 2 months vs every 65 months). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Zero21 Card Game holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Ringle ships an update every 2 months, Zero21 Card Game every 65 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | Ringle | Zero21 Card Game |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 months — better | Every 65 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 44 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | moonxseed | Le Nhung |
Customer experience
Ringle
Zero21 Card Game
In-app purchases
Ringle
No in-app purchases
Zero21 Card Game
No in-app purchases
Questions
Is Ringle free?
Is Zero21 Card Game free?
Which has better reviews, Ringle or Zero21 Card Game?
Do Ringle or Zero21 Card Game have ads?
Which is updated more often, Ringle or Zero21 Card Game?
Other comparisons
