# Double Number Merging vs NinPop!

The clearest difference is update cadence: NinPop! at every 4 days against Double Number Merging's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Double Number Merging sells 9 one-off in-app purchases and NinPop! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Double Number Merging ships an update every 3 months, NinPop! every 4 days. The most recent releases landed on September 27, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Double Number Merging | NinPop! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (743 ratings)](https://appshunter.io/ios/app/double-number-merging/id6736434801/reviews)** | — |
| Number of ratings | **743** | — |
| Positive reviews | 7.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 290 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [puzzle studio](https://appshunter.io/developer/1562662220) | [Asuka Sawamura](https://appshunter.io/developer/1895836000) |

## What reviewers say

### 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


### NinPop!

[App page](https://appshunter.io/ios/app/ninpop/id6780127030)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Double Number Merging free?

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

### Is NinPop! free?

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

### Do Double Number Merging or NinPop! have ads?

Both Double Number Merging and NinPop! show ads.

### Which is updated more often, Double Number Merging or NinPop!?

Double Number Merging ships an update every 3 months, and NinPop! every 4 days. Most recently, Double Number Merging was updated on September 27, 2026 and NinPop! on September 9, 2026.

---

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