# Join Blocks vs Double Number Merging

The clearest difference is update cadence: Join Blocks at every 2 weeks against Double Number Merging's every 3 months. Join Blocks also leads on review sentiment (25% vs 7%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Join Blocks sells 6 one-off in-app purchases and Double Number Merging sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.9 for Join Blocks against 3.9 for Double Number Merging. Both are backed by a comparable volume of ratings — 1.6K and 779 respectively. Written reviews are what separate them: 25% of Join Blocks's written reviews are positive against 7% of Double Number Merging's.

Join Blocks ships an update every 2 weeks, Double Number Merging every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Join Blocks | Double Number Merging |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (1.6K ratings)](https://appshunter.io/ios/app/join-blocks-number-puzzle/id1509042572/reviews)** | [3.9 (779 ratings)](https://appshunter.io/ios/app/double-number-merging/id6736434801/reviews) |
| Number of ratings | **1.6K** | 779 |
| Positive reviews | **25.0% of reviews** | 7.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 222 MB | 290 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NewPubCo, Inc](https://appshunter.io/developer/1487809159) | [puzzle studio](https://appshunter.io/developer/1562662220) |

## What reviewers say

### Join Blocks

[App page](https://appshunter.io/ios/app/join-blocks-number-puzzle/id1509042572)

This is an addictive number puzzle game where you merge blocks with the same numbers to create higher values. It's designed to sharpen your mind and relieve stress with its simple yet challenging gameplay.

**Highlights:** Merge number blocks, Reach 2048 and beyond, Collect diamonds for tools, Smashing hammer tool, Leaderboard, Relaxing gameplay

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Diamonds | $0.99 | one-time |
| Pouch of Diamonds | $2.99 | one-time |
| No Ads | $3.99 | one-time |
| Bucket of Diamonds | $4.99 | one-time |
| Stash of Diamonds | $9.99 | one-time |
| Bank of Diamonds | $24.99 | one-time |


### Double Number Merging

[App page](https://appshunter.io/ios/app/double-number-merging/id6736434801)

Engage your mind with a classic number-themed puzzle game. Strategically merge falling number blocks to clear space and achieve higher scores. Enjoy a fun and challenging experience anywhere, anytime, with features like daily bonuses and progress saving.

**Highlights:** Number block merging, Brain exercise, Multiple levels, Daily bonuses, Auto-save progress, Smash unwanted blocks

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Diamonds | $0.99 | one-time |
| 10 Hammers | $1.49 | one-time |
| 10 Switches | $1.49 | one-time |
| 3000 Diamonds | $2.99 | one-time |
| 4400 Diamonds | $3.99 | one-time |
| Starter Pack | $4.99 | one-time |
| 9200 Diamonds | $7.99 | one-time |
| 18100 Diamonds | $14.99 | one-time |
| 26000 Diamonds | $19.99 | one-time |

**What reviewers like**

- 💡 Fun game concept

**What reviewers complain about**

- 🚫 Excessive ads that cover the screen
- 🐛 Ads that won't close or minimize
- 🚫 Ads that interrupt gameplay
- 🚫 Ads that prevent playing the game

**Reported bugs**

- Purchased items not received
- Freezing and crashing issues

**Requested features**

- Option to remove ads for a fee
- Reduce frequency of ads during gameplay


## Frequently asked questions

### Is Join Blocks free?

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

### Is Double Number Merging free?

Double Number Merging is free to download, with in-app purchases available.

### Which has better reviews, Join Blocks or Double Number Merging?

Join Blocks is rated higher. Join Blocks averages 3.9 out of 5 from 1.6K ratings, while Double Number Merging averages 3.9 from 779 ratings.

### Do Join Blocks or Double Number Merging have ads?

Both Join Blocks and Double Number Merging show ads.

### Which is updated more often, Join Blocks or Double Number Merging?

Join Blocks ships an update every 2 weeks, and Double Number Merging every 3 months. Most recently, Join Blocks was updated on November 3, 2026 and Double Number Merging on October 30, 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.*