# TETSUO vs ポケットすらいむ

The clearest difference is ads: TETSUO at none against ポケットすらいむ's shown. TETSUO also leads on iOS requirement (7.1 vs 15.0). ポケットすらいむ's advantage is update cadence (fortnightly vs every 2 months). On price, 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.

TETSUO ships an update every 2 months, ポケットすらいむ fortnightly. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | TETSUO | ポケットすらいむ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tetsuo/id886919934/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 17 MB | 468 MB |
| Requires iOS | **7.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [NAKAYUBI CORPORATION](https://appshunter.io/developer/826300169) | [Sotetsu Hamada](https://appshunter.io/developer/1812816167) |

## What reviewers say

### TETSUO

[App page](https://appshunter.io/ios/app/tetsuo/id886919934)

Tap a mysterious creature to help it grow and age. Collect memories of your time together to complete a photo album. Aim for high scores and see your creature evolve.

**Highlights:** Tap to grow creature, Creature ages over time, Collect memories, Complete photo album, High score tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### ポケットすらいむ

[App page](https://appshunter.io/ios/app/id6755052080)

**In-app purchases:** none


## Frequently asked questions

### Is TETSUO free?

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

### Is ポケットすらいむ free?

ポケットすらいむ is free to download, with no in-app purchases.

### Do TETSUO or ポケットすらいむ have ads?

ポケットすらいむ shows ads; TETSUO does not.

### Which is updated more often, TETSUO or ポケットすらいむ?

TETSUO ships an update every 2 months, and ポケットすらいむ fortnightly. Most recently, TETSUO was updated on October 29, 2026 and ポケットすらいむ on October 14, 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.*