# Bubble Times Math vs 九九聞き流し

The clearest difference is in-app purchases: Bubble Times Math at none against 九九聞き流し's 1. Bubble Times Math also leads on ads (none vs shown) and update cadence (weekly vs fortnightly). On price and device support there is nothing between them.

Both are free to download. 九九聞き流し sells 1 one-off in-app purchase. Bubble Times Math asks for nothing beyond the download.

Bubble Times Math ships an update weekly, 九九聞き流し fortnightly. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Bubble Times Math | 九九聞き流し |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 115 MB | 22 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yasuaki Maino](https://appshunter.io/developer/1792614110) | [Takahiro Kogawa](https://appshunter.io/developer/1886613808) |

## What reviewers say

### Bubble Times Math

[App page](https://appshunter.io/ios/app/bubble-times-math/id6741021188)

Learn multiplication tables through a fun, interactive game. Combine and split colorful number balls to solve equations and improve calculation skills. Offers timed and untimed modes for practice at any pace.

**Highlights:** Combine and split number balls, Unique gameplay mechanics, Timed Normal Mode, Untimed Endless Mode, Score-based challenges, Short, engaging play sessions

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

**In-app purchases:** none


### 九九聞き流し

[App page](https://appshunter.io/ios/app/id6760878462)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Bubble Times Math free?

Bubble Times Math is free to download, with no in-app purchases.

### Is 九九聞き流し free?

九九聞き流し is free to download, with in-app purchases available.

### Do Bubble Times Math or 九九聞き流し have ads?

九九聞き流し shows ads; Bubble Times Math does not.

### Which is updated more often, Bubble Times Math or 九九聞き流し?

Bubble Times Math ships an update weekly, and 九九聞き流し fortnightly. Most recently, Bubble Times Math was updated on September 20, 2026 and 九九聞き流し on September 13, 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.*