# SmartGo One vs Reverse Stone

The clearest difference is rating: SmartGo One at 4.8 against Reverse Stone's 4.0. SmartGo One also leads on ads (none vs shown) and ratings volume (2K vs 1). Reverse Stone's advantage is in-app purchases (none vs 47) and iOS requirement (15.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. SmartGo One sells 47 in-app purchases, starting at $4.99 per month. Reverse Stone asks for nothing beyond the download.

SmartGo One holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: SmartGo One has 2K ratings behind it against 1, so its average is the more settled of the two.

SmartGo One ships an update every 10 days, Reverse Stone monthly. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SmartGo One | Reverse Stone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2K ratings)](https://appshunter.io/ios/app/smartgo-one/id1465746992/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/reverse-stone-classic-game/id1570016988/reviews) |
| Number of ratings | **2K** | 1 |
| Positive reviews | 76.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 154 MB | 110 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smart Go, Inc.](https://appshunter.io/developer/290948289) | [Hirokazu Uno](https://appshunter.io/developer/1570016990) |

## What reviewers say

### SmartGo One

[App page](https://appshunter.io/ios/app/smartgo-one/id1465746992)

Learn, play, and improve at the ancient game of Go. This app offers adjustable board sizes, a strong AI opponent, and tools to study professional games and solve Go problems. It's designed for players of all skill levels, from beginners to masters.

**Highlights:** Adjustable board sizes (9x9 to 19x19), Strong KataGo game engine, Study professional game records, Solve Go problems and tutorials, Pattern matching for move suggestions, Territory estimator, Game recording and annotation

**Features:** Family Sharing, Vision Pro support

**In-app purchases (47)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartGo One Pro – Monthly | $4.99 | per month |
| Pro Games and Features | $29.99 | per year |
| Just Enough Japanese 1 | Free | one-time |
| Key Concepts in Life and Death | $2.99 | one-time |
| Go Problems Master Collection | $3.99 | one-time |
| Go Problems Add-on 2: Medium | $3.99 | one-time |
| Go Problems Add-on 1: Easy | $3.99 | one-time |
| Go Problems Add-on 3: Hard | $3.99 | one-time |
| Counting Liberties | $4.99 | one-time |
| The Monkey Jump | $4.99 | one-time |
| Double Digit Kyu Games | $5.99 | one-time |
| Go: A Complete Introduction | $5.99 | one-time |
| How Not to Play Go | $5.99 | one-time |
| Encyclopedia of Go Principles | $5.99 | one-time |
| Want to Play Go? Level 1 | $5.99 | one-time |
| Black to Play 30-25 Kyu | $5.99 | one-time |
| The Workshop Lectures 1 | $5.99 | one-time |
| Rethinking Opening Strategy | $6.99 | one-time |
| Learn to Play Go 1 | $7.99 | one-time |
| Learn to Play Go 2 | $7.99 | one-time |
| Learn to Play Go 3 | $7.99 | one-time |
| Correct Joseki | $7.99 | one-time |
| “The Theory of Go” | $7.99 | one-time |
| Learn to Play Go 4 | $7.99 | one-time |
| Buddhist Philosophy Game of Go | $8.99 | one-time |
| Graded Go Problems 1 | $9.99 | one-time |
| Graded Go Problems 2 | $9.99 | one-time |
| Want to Play Go? Level 2 | $9.99 | one-time |
| Basic Techniques of Go | $9.99 | one-time |
| Graded Go Problems 3 | $9.99 | one-time |
| Get Strong at Life and Death | $9.99 | one-time |
| Mastering Mini Go by Mark Tomlinson | $11.99 | one-time |
| Fuseki Revolution | $11.99 | one-time |
| Fundamental Principles of Go | $11.99 | one-time |
| The Basics of Life and Death | $11.99 | one-time |
| Joseki Revolution | $11.99 | one-time |
| Life and Death | $11.99 | one-time |
| A Survey of the Basic Tesujis | $11.99 | one-time |
| Tesuji | $11.99 | one-time |
| Tesuji for Beginners | $14.99 | one-time |
| AlphaGo to Zero, vol. 4 | $14.99 | one-time |
| Trouble Master, volume 2 | $14.99 | one-time |
| Trouble Master, volume 1 | $14.99 | one-time |
| AlphaGo to Zero, Vol. 2 | $14.99 | one-time |
| Invincible | $24.99 | one-time |
| Essential Go Proverbs | $24.99 | one-time |
| Pro – Lifetime Unlock | $99.00 | one-time |

**What reviewers like**

- 🚀 Awesome app
- 👍 Great for playing and learning Go
- 📚 Excellent integration with Go books
- 🔍 Powerful analysis and review features
- 💻 Seamless experience across devices

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🤔 Unintuitive user interface for beginners
- 💰 Paywall for full 19x19 board and some features
- 🤖 AI too strong for novice players

**Reported bugs**

- Illegal move detection issues on certain board positions
- Problems with missing variations or incorrect answers
- Inconsistent behavior when passing moves

**Requested features**

- Add read-only mode
- Improve move suggestion explanations
- Introduce difficulty settings for AI
- Integrate online play functionality
- Provide more randomness in AI moves


### Reverse Stone

[App page](https://appshunter.io/ios/app/reverse-stone-classic-game/id1570016988)

A classic board game where players reverse their opponent's pieces by sandwiching them. Enjoy single-player challenges against AI or local multiplayer matches with friends and family. Perfect for quick gaming sessions.

**Highlights:** Sandwich and reverse opponent's stones, Play against AI with adjustable difficulty, Local two-player mode, Simple and easy to learn, Suitable for short play sessions

**In-app purchases:** none


## Frequently asked questions

### Is SmartGo One free?

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

### Is Reverse Stone free?

Reverse Stone is free to download, with no in-app purchases.

### Which has better reviews, SmartGo One or Reverse Stone?

SmartGo One is rated higher. SmartGo One averages 4.8 out of 5 from 2K ratings, while Reverse Stone averages 4.0 from 1 ratings.

### Do SmartGo One or Reverse Stone have ads?

Reverse Stone shows ads; SmartGo One does not.

### Which is updated more often, SmartGo One or Reverse Stone?

SmartGo One ships an update every 10 days, and Reverse Stone monthly. Most recently, SmartGo One was updated on October 19, 2026 and Reverse Stone on October 15, 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.*