# タンサク - 歩くだけで世界が拡がる探索マップ。散歩・旅行 — スマホを捨てよう、町へ出よう。あなた専用の地図を作る旅。

> Personal fog-of-war map app that records explored areas by walking. (iPhone/iPad app by ryota gunji.)

- Source: https://appshunter.io/ios/app/id6759600058 (this page in markdown: same URL + `.md`)
- Developer: [ryota gunji](https://appshunter.io/developer/1597111553)
- Category: Travel, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 96 MB
- Languages: American English, Japanese
- Released: 2026-03-05
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/id6759600058/reviews.md

## What is タンサク?

WorldTrace - Walk More, See More. Your Personal Fog-of-War Map.

We live in an age where you can look up anything before you arrive. Street views of cities you have never visited. Reviews of restaurants you have never tasted. Information is everywhere, and yet something feels missing.

When was the last time you looked up from your phone and noticed the street you were walking down?

WorldTrace was born from a single, quiet realization. During a trip abroad, the creator found that despite taking hundreds of photos and checking dozens of recommendations, the memories felt strangely hollow. Each place was reduced to a brief stop between phone screens -- a thumbnail in a camera roll rather than a lived experience. The journey itself, the walk between destinations, had vanished entirely.

That realization became this app.

WorldTrace is disarmingly simple. When you open it, the entire map is covered in fog. You cannot see anything. Then you walk outside, and the fog begins to lift -- but only where your feet have carried you. Over days, weeks, months, a map emerges that belongs to no one else. It is a quiet record of everywhere you have been, drawn not by your fingers but by your footsteps.

Andre Gide once wrote, "Put down your books and go out into the world." Today, he might say: put down your phone and go out into the world. Not because phones are without value, but because knowledge that never passes through your own body remains someone else's knowledge. The texture of a cobblestone street, the unexpected turn that leads to a hidden garden, the way light falls differently in a neighborhood you have never explored -- these things cannot be looked up. They can only be lived.

How to use WorldTrace:

Open the app. Put your phone in your pocket. Walk outside.

That is all. No interaction is needed while you walk. GPS quietly records your path in the background. When you return home, open the app again and watch the fog recede along the routes you traveled. Over time, your personal map grows -- a visual diary of your relationship with the world around you.

Features:

Automatic tracking. WorldTrace records your movement using background GPS. You do not need to keep the app open or interact with it while walking.

Manual drawing. For areas with poor signal -- underground passages, dense urban corridors, indoor markets -- you can reveal the map by hand.

Map pins. Drop pins at places that matter to you, with photos and notes attached. Not every memory needs a social media post. Some are just for you.

Level system. As your explored area grows, you earn titles that reflect your journey. A small, gentle motivation to keep walking.

Step counter. Integration with the Health app lets you see your daily steps alongside your map progress.

Customization. Choose fog colors and map styles to make the experience your own.

Who WorldTrace is for:

People who want to build a walking habit but find fitness apps too focused on performance. Travelers who want something deeper than a photo album. People who have moved to a new city and want a reason to explore it slowly. People who want a quiet nudge to look up from their screens. People who simply love maps and the idea of drawing their own.

Who WorldTrace is not for:

If you are looking for detailed fitness metrics -- precise distance, pace, calorie counts, heart rate zones -- this is not the right app. WorldTrace is not a fitness tracker. It is a map of presence.

A final note:

After that trip with the fragmented memories, the creator did not throw away their phone. That was never the point. Instead, the relationship changed. The phone went into a pocket, and the eyes went to the world. WorldTrace does not reject the smartphone. It simply proposes a different way of carrying one: not as a screen to stare at, but as a quiet companion that grows your map while you grow your experience.

Your map is waiting. It starts covered in fog.
All you have to do is walk.

## Key features

- Automatic GPS tracking
- Manual map drawing
- Map pins with notes and photos
- Exploration level system
- Health app step counter integration
- Customizable map styles

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| プレミアムプラン | $11.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/id6759600058/reviews.md

### 4/5 — 散歩が楽しいです！

*2026-06-08*

大きな欠点とかバグがなくてとても満足です！

ですが、削除した記録分のポイントも一緒に削除されて欲しいかもしれないです…！

もう1つ、
今のLvと章だけではなくて、
今までに取ったことのあるレベル、章を見れたらいいなと思ってます！

**Developer response:** いつもタンサクをご利用いただき、誠にありがとうございます。
嬉しいご感想とともにご要望をいただき、ありがとうございます！

削除した記録に紐づくポイントの連動削除については、データの整合性という観点から気になるポイントですね。これまで積み重ねてきたレベルや章を振り返れる機能についても、歩んできた記録に意味を持たせる要素になると感じます。

いずれも今後の参考にさせていただきます。引き続き散歩を楽しんでいただければ幸いです。

### 4/5 — ご検討お願い致します

*2026-04-26*

実績やバッヂなどもあればより楽しそうだと思いました。

**Developer response:** いつもタンサクをご利用いただき、誠にありがとうございます！
レビューと素敵なご提案をいただき、ありがとうございます。

実績やバッヂの仕組みがあれば、歩いた記録を振り返る楽しさが一段と増えそうですね。思わず集めたくなる要素として今後のアップデートに向けて前向きに検討させていただきます。

引き続きタンサクをよろしくお願いいたします。

### 4/5 — 面白いアプリだが…

*2026-03-31*

普通の旅行は飽きて大概どこにも行ったことがあるので面白そうだと思いインストールしました。
見知った街を開拓する快感がいいのですが、有料プランで構わないので歩いていない場所の霧の濃さも調整できると嬉しいです。真っ白で全く見えない場所が見えるようになるとよりゲーム感が感じられるのでぜひご検討お願いします。

**Developer response:** いつもタンサクをご利用いただき、誠にありがとうございます。
レビューでのご要望、ありがとうございます！

見知った街を開拓する感覚を楽しんでいただけているとのこと、とても嬉しいです。霧の濃さを段階的に調整できる機能は確かに面白そうですね。まだ歩いていないエリアでも、うっすら地形が見えるくらいの透け感があると、「あそこまで行ってみよう」というモチベーションにもつながりそうです。
なお、現在のタンサクでは霧の幅・ぼかし設定の変更機能を提供しておりますので、よろしければこちらもお試しいただけますと幸いです。

アップデート開発の参考にさせていただきます。
今後ともタンサクをよろしくお願いいたします。

## Frequently asked questions about タンサク

### What is the short name for タンサク - 歩くだけで世界が拡がる探索マップ。散歩・旅行?

The short common name for the app is WorldTrace. This is derived from the English portion of its title and subtitle, focusing on its core function of tracing your steps and exploring the world.

### Does WorldTrace have ads?

Yes, WorldTrace contains advertisements. As a free app with in-app purchases, advertisements are part of the user experience to support its development and availability.

### How does WorldTrace track my location?

WorldTrace uses background GPS to automatically record your movement as you walk. You do not need to keep the app open or interact with it while you are out exploring.

### Can I add personal memories to my map in WorldTrace?

Yes, you can drop map pins at places that are significant to you. These pins can include photos and notes, creating a personal record of your experiences that is not shared publicly.

### What devices is WorldTrace compatible with?

WorldTrace is currently supported on iPhone and iPod devices. It is designed for iOS users who want to enhance their walking and travel experiences.

### How often is WorldTrace updated?

The app was last updated on June 12, 2026, with version 1.1.1. This indicates a recent update, suggesting ongoing development and support for the application.

### What is the age rating for WorldTrace?

WorldTrace has an age rating of 4+. This means it is considered suitable for children aged four and older, making it accessible for a wide range of users.

### Can I manually reveal parts of the map in WorldTrace?

Yes, WorldTrace offers a manual drawing feature. This is particularly useful for areas where GPS signal might be weak, such as underground passages or dense urban areas, allowing you to still record your exploration.

## Version history (last 5 releases)

### 1.1.1 — 2026-06-12

・Fixed a bug that caused the map to tilt when swiping with two fingers

### 1.1.0 — 2026-04-06

- Added two-finger rotation for the map
- Minor bug fixes

### 1.0.2 — 2026-03-13

・Minor bug fixes.

### 1.0.1 — 2026-03-09

・The issue causing delays in image display has been resolved.

### 1.0.0 — 2026-03-05

No release notes.

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All apps by ryota gunji: https://appshunter.io/developer/1597111553

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*