# Tsumego Pro (Go problems) vs GridStrike

The clearest difference is update cadence: GridStrike at every 3 days against Tsumego Pro (Go problems)'s every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tsumego Pro (Go problems) sells 12 one-off in-app purchases and GridStrike sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Tsumego Pro (Go problems) ships an update every 3 weeks, GridStrike every 3 days. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Tsumego Pro (Go problems) | GridStrike |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.8K ratings)](https://appshunter.io/ios/app/tsumego-pro-go-problems/id892041876/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 34 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emmanuel Mathis](https://appshunter.io/developer/892041879) | [Luke Lindholm](https://appshunter.io/developer/1031680261) |

## What reviewers say

### Tsumego Pro (Go problems)

[App page](https://appshunter.io/ios/app/tsumego-pro-go-problems/id892041876)

Enhance your Go skills with a vast library of tsumego puzzles. Learn from detailed solutions and explore variations to understand mistakes. Features daily problems, adaptive difficulty, and customizable game settings.

**Highlights:** Daily tsumego problems, Adaptive difficulty modes, Detailed solutions and bad variations, Color selection (black, white, random), Hint system, Book theme

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +150 Basic Problems | $0.99 | one-time |
| +150 Intermediate problems | $0.99 | one-time |
| +150 Easy problems | $0.99 | one-time |
| Beginner problems | $1.99 | one-time |
| Elementary problems | $1.99 | one-time |
| Intermediate problems | $1.99 | one-time |
| Advanced problems | $1.99 | one-time |
| Advanced problems #2 | $1.99 | one-time |
| Basic tesuji | $1.99 | one-time |
| Daily problems - Easy | $1.99 | one-time |
| Daily problems - Hard | $1.99 | one-time |
| All-Access Pass | $9.99 | one-time |

**What reviewers like**

- 👍 Stimulate thinking
- 👍 Minimalistic, Gets the Job Done
- 👍 Great app for learning Go on the move!
- 👍 Great app
- 👍 Amazing Go app

**What reviewers complain about**

- 🐛 Do Not Buy All-Access Pack
- 🐛 Sometimes it says resolved when black loses
- 🐛 Not for beginners, not helpful at all
- 🐛 Decent - room for improvement
- 🐛 Lacking feedback, errors, & lack of control

**Reported bugs**

- Purchases do not work
- Incorrect problems
- Issues with the progress mode and problem selection

**Requested features**

- Explanation when a move is correct or incorrect
- More explanations and instructions for beginners
- Ability to play out variations and see different outcomes
- Consistent difficulty ratings for problems
- Ability to bookmark and revisit problems


### GridStrike

[App page](https://appshunter.io/ios/app/gridstrike/id6759350355)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Tsumego Pro (Go problems) free?

Tsumego Pro (Go problems) is free to download, with in-app purchases available.

### Is GridStrike free?

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

### Do Tsumego Pro (Go problems) or GridStrike have ads?

Both Tsumego Pro (Go problems) and GridStrike show ads.

### Which is updated more often, Tsumego Pro (Go problems) or GridStrike?

Tsumego Pro (Go problems) ships an update every 3 weeks, and GridStrike every 3 days. Most recently, Tsumego Pro (Go problems) was updated on September 24, 2026 and GridStrike on September 8, 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.*