# SUM! Planets vs シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学

The clearest difference is rating: SUM! Planets at 5.0 against シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学's 4.0. SUM! Planets also leads on ads (none vs shown) and update cadence (daily vs monthly). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SUM! Planets holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SUM! Planets ships an update daily, シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 monthly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SUM! Planets | シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sum-planets-simple-math-game/id1438844429/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/id6740206126/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Monthly |
| Monetization | **Free** | Ad-supported |
| Size | 236 MB | 100 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Enfani Inc.](https://appshunter.io/developer/1023209229) | [ayumu tonosaki](https://appshunter.io/developer/1669963115) |

## What reviewers say

### SUM! Planets

[App page](https://appshunter.io/ios/app/sum-planets-simple-math-game/id1438844429)

This is a fast-paced falling bubble puzzle game where players must quickly find pairs that add up to ten. It offers a simple yet challenging experience that becomes increasingly difficult as the game speeds up.

**Highlights:** Falling bubble puzzle gameplay, Find pairs to make ten, Increasing speed and difficulty, Simple and addictive, Award-winning design

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

**In-app purchases:** none


### シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学

[App page](https://appshunter.io/ios/app/id6740206126)

Engage in fun math training with cute Shima-enaga birds. Practice multiplication tables and mental arithmetic through various game modes, improving calculation skills and concentration. Compete with others on a national ranking board and unlock unique Shima-enaga icons.

**Highlights:** Multiplication table practice, Randomized arithmetic problems (+, -, x, ÷), Time-based challenges, Score-based progression, National ranking system, Unlockable Shima-enaga icons, Cute character animations

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

**In-app purchases:** none


## Frequently asked questions

### Is SUM! Planets free?

SUM! Planets is free to download, with no in-app purchases.

### Is シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 free?

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 is free to download, with no in-app purchases.

### Which has better reviews, SUM! Planets or シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学?

SUM! Planets is rated higher. SUM! Planets averages 5.0 out of 5 from 1 ratings, while シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 averages 4.0 from 1 ratings.

### Do SUM! Planets or シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 have ads?

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 shows ads; SUM! Planets does not.

### Which is updated more often, SUM! Planets or シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学?

SUM! Planets ships an update daily, and シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 monthly. Most recently, SUM! Planets was updated on November 2, 2026 and シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 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.*