# CodeAB vs 4DigitsGo

The clearest difference is in-app purchases: 4DigitsGo at none against CodeAB's 1. 4DigitsGo also leads on update cadence (daily vs every 6 weeks) and iOS requirement (13.4 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. CodeAB sells 1 one-off in-app purchase. 4DigitsGo asks for nothing beyond the download.

CodeAB ships an update every 6 weeks, 4DigitsGo daily. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | CodeAB | 4DigitsGo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/codeab-logic-number-puzzle/id1616021619/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Monetization | Free | — |
| Size | 3 MB | 21 MB |
| Requires iOS | 17.6 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EssentialCapture Inc](https://appshunter.io/developer/1558967478) | [terspective LLC](https://appshunter.io/developer/1769071144) |

## What reviewers say

### CodeAB

[App page](https://appshunter.io/ios/app/codeab-logic-number-puzzle/id1616021619)

Test your logic and deduction skills in this addictive number puzzle game. Figure out the secret 4-digit code using hints after each guess. It's a fresh take on a classic puzzle, perfect for quick brain training.

**Highlights:** Deduction and logic gameplay, Secret 4-digit code challenge, Clues after every guess, No leading zeros or repeating digits, Quick brain training rounds, Classic Bulls & Cows style

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CodeAB | $2.99 | one-time |


### 4DigitsGo

[App page](https://appshunter.io/ios/app/4digitsgo/id6694655424)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CodeAB free?

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

### Is 4DigitsGo free?

4DigitsGo is free to download, with no in-app purchases.

### Do CodeAB or 4DigitsGo have ads?

Neither CodeAB nor 4DigitsGo shows ads.

### Which is updated more often, CodeAB or 4DigitsGo?

CodeAB ships an update every 6 weeks, and 4DigitsGo daily. Most recently, CodeAB was updated on September 17, 2026 and 4DigitsGo on September 9, 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.*