# Smart Mahjong vs PROJECT_XENO

The clearest difference is review sentiment: Smart Mahjong at 60% against PROJECT_XENO's 23%. Smart Mahjong also leads on in-app purchases (none vs 77) and rating (4.5 vs 4.1). PROJECT_XENO's advantage is ratings volume (24 vs 2) and device support (3 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. PROJECT_XENO sells 75 one-off in-app purchases. Smart Mahjong asks for nothing beyond the download.

Smart Mahjong holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: PROJECT_XENO has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 60% of Smart Mahjong's written reviews are positive against 23% of PROJECT_XENO's.

Smart Mahjong ships an update every 3 weeks, PROJECT_XENO every 2 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | Smart Mahjong | PROJECT_XENO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/smart-mahjong/id1621669217/reviews)** | [4.1 (24 ratings)](https://appshunter.io/ios/app/project-xeno/id6446313010/reviews) |
| Number of ratings | 2 | **24** |
| Positive reviews | **60.0% of reviews** | 23.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 328 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KAZUYA KIMURA](https://appshunter.io/developer/1455105273) | [Studio Z,Inc.](https://appshunter.io/developer/1353824568) |

## What reviewers say

### Smart Mahjong

[App page](https://appshunter.io/ios/app/smart-mahjong/id1621669217)

Instantly calculate Mahjong scores by scanning tiles with your camera. View yaku, han, and fu to understand scoring mechanics. This app is continuously updated based on user feedback.

**Highlights:** Camera-based tile recognition, Instant score calculation, Displays yaku, han, and fu, Score learning tool, User feedback integration

**Features:** Vision Pro support

**In-app purchases:** none


### PROJECT_XENO

[App page](https://appshunter.io/ios/app/project-xeno/id6446313010)

Engage in real-time turn-based PvP battles with strategic deck-building. Assemble a team of three characters and twelve skill cards to outwit opponents. Master tactical decisions and adapt quickly to claim victory in global arena battles.

**Highlights:** Real-time turn-based PvP battles, Strategic deck-building, Character and skill card customization, Global online competition, Ranked arena battles, Simultaneous turn system

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (75)**

| Purchase | Price | Billing |
| --- | --- | --- |
| itempack_a | $1.00 | one-time |
| U-coins Spack | $1.00 | one-time |
| Battle_Time_Sale_1 | $1.00 | one-time |
| itempack_I | $2.00 | one-time |
| beginner_pack | $3.00 | one-time |
| Gcoin_gacha_ticket | $3.00 | one-time |
| itempack_b | $3.00 | one-time |
| xeno_beginner_pack | $3.00 | one-time |
| U-coins Mpack | $5.00 | one-time |
| Battle_Time_Sale_2 | $5.00 | one-time |
| collabopack_H | $6.00 | one-time |
| itempack_c | $6.00 | one-time |
| Hammer | $6.00 | one-time |
| special_pack_b | $6.00 | one-time |
| Arena_2_Celebration_pack_ver2 | $6.00 | one-time |
| itempack_f | $10.00 | one-time |
| U-coins Lpack | $10.00 | one-time |
| Battle_Time_Sale_6 | $10.00 | one-time |
| battle_pass_season19 | $12.00 | one-time |
| battle_pass_season18 | $12.00 | one-time |
| battle_pass_season17 | $12.00 | one-time |
| battle_pass_season16 | $12.00 | one-time |
| battle_pass_season15 | $12.00 | one-time |
| battle_pass_season14 | $12.00 | one-time |
| battle_pass_season13 | $12.00 | one-time |
| xeno_1st_annive_lucky_pack_c | $15.00 | one-time |
| Battle_Time_Sale_3 | $15.00 | one-time |
| sale_pack_a | $20.00 | one-time |
| sale_pack_b | $20.00 | one-time |
| collabopack_B | $20.00 | one-time |
| itempack_O | $20.00 | one-time |
| itempack_P | $20.00 | one-time |
| battlepass_A | $30.00 | one-time |
| Arena 7 Celebration Pack | $30.00 | one-time |
| G-coins XLpack | $30.00 | one-time |
| arena_celebration_pack_7 | $30.00 | one-time |
| itempack_U | $30.00 | one-time |
| arena_celebration_pack_6 | $30.00 | one-time |
| weekly_pack_b | $30.00 | one-time |
| EQUIP NFT-BOX Silver Key | $30.00 | one-time |
| arena_celebration_pack_5_ver3 | $30.00 | one-time |
| Arena_5_Celebration_pack_ver2 | $30.00 | one-time |
| 11gcoin_gacha_tickets | $30.00 | one-time |
| Arena_4_Celebration_pack_ver2 | $30.00 | one-time |
| gacha_ticket_pack | $30.00 | one-time |
| starter_pack_b | $30.00 | one-time |
| monk_attack_skill_pack | $30.00 | one-time |
| Arena_7_Celebration_pack_ver2 | $30.00 | one-time |
| Arena_6_Celebration_pack_ver2 | $30.00 | one-time |
| xeno_1st_annive_lucky_pack_b | $30.00 | one-time |
| xeno_silver_key_pack | $30.00 | one-time |
| G-coins XXLpack | $50.00 | one-time |
| itempack_V | $60.00 | one-time |
| Half_Anniversary_Battle_Pass | $60.00 | one-time |
| Arena 8 Celebration Pack | $60.00 | one-time |
| special_pack_e | $60.00 | one-time |
| special_pack_u | $60.00 | one-time |
| arena_celebration_pack_9_ver3 | $60.00 | one-time |
| itempack_G | $60.00 | one-time |
| itempack_F | $60.00 | one-time |
| itempack_H | $60.00 | one-time |
| special_pack_g | $60.00 | one-time |
| weekly_pack_a | $60.00 | one-time |
| battle_pass_season13_ex | $60.00 | one-time |
| gacha_ticket_pack_dx | $60.00 | one-time |
| Arena_9_Celebration_pack_ver2 | $60.00 | one-time |
| september_battle_pass | $60.00 | one-time |
| 10smeltingstones | $60.00 | one-time |
| Arena_8_Celebration_pack_ver2 | $60.00 | one-time |
| MONK  GACHA TICKET Pack DX | $60.00 | one-time |
| xeno_1st_annive_lucky_pack_a | $60.00 | one-time |
| battlepass_seasen10ex | $60.00 | one-time |
| xeno_gold_key_pack | $80.00 | one-time |
| U-coins 3XLpack | $100.00 | one-time |
| G-coins 3XLpack | $100.00 | one-time |


## Frequently asked questions

### Is Smart Mahjong free?

Smart Mahjong is free to download, with no in-app purchases.

### Is PROJECT_XENO free?

PROJECT_XENO is free to download, with in-app purchases available.

### Which has better reviews, Smart Mahjong or PROJECT_XENO?

Smart Mahjong is rated higher. Smart Mahjong averages 4.5 out of 5 from 2 ratings, while PROJECT_XENO averages 4.1 from 24 ratings.

### Do Smart Mahjong or PROJECT_XENO have ads?

Both Smart Mahjong and PROJECT_XENO show ads.

### Which is updated more often, Smart Mahjong or PROJECT_XENO?

Smart Mahjong ships an update every 3 weeks, and PROJECT_XENO every 2 weeks. Most recently, Smart Mahjong was updated on October 27, 2026 and PROJECT_XENO on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*