# 東京時層地図 for iPad vs OSM sketch

The clearest difference is price: OSM sketch at Free against 東京時層地図 for iPad's $20.99. OSM sketch also leads on review sentiment (100% vs 56%) and update cadence (every 4 months vs every 14 months). 東京時層地図 for iPad's advantage is ads (none vs shown) and iOS requirement (9.0 vs 16.6). On in-app purchases and device support there is nothing between them.

OSM sketch is free to download; 東京時層地図 for iPad costs $20.99 up front. Neither carries in-app purchases, so what you see is what you pay.

東京時層地図 for iPad ships an update every 14 months, OSM sketch every 4 months. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 東京時層地図 for iPad | OSM sketch |
| --- | --- | --- |
| Price | $20.99 | **Free** |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/osm-sketch/id777144672/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 56.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 1.8 GB | 8 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Japan Map Center, Inc.](https://appshunter.io/developer/392574709) | [Masaki Fujimoto](https://appshunter.io/developer/777144675) |

## What reviewers say

### 東京時層地図 for iPad

[App page](https://appshunter.io/ios/app/for-ipad/id674590967)

Explore historical Tokyo and Yokohama through layered maps and aerial photographs spanning from the Meiji era to the present. Compare old cityscapes with current views, discover place names, and bookmark significant locations. This iPad app offers a unique way to understand urban development over time.

**Highlights:** Historical map overlays, Aerial photograph comparisons, Dual-screen display, Place name search, Bookmarking function, GPS-enabled exploration

**In-app purchases:** none


### OSM sketch

[App page](https://appshunter.io/ios/app/osm-sketch/id777144672)

Draw directly on OpenStreetMap maps to create annotations and memos. Save your drawings as GPX files to upload and edit on desktop OSM editors. Ideal for planning routes or marking points of interest on the go.

**Highlights:** Draw on OSM maps, Save drawings as GPX, Upload to OSM account, Multi-touch gestures, Display current location, Zoom and scroll map

**In-app purchases:** none


## Frequently asked questions

### Is 東京時層地図 for iPad free?

東京時層地図 for iPad costs $20.99, with no in-app purchases.

### Is OSM sketch free?

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

### Do 東京時層地図 for iPad or OSM sketch have ads?

OSM sketch shows ads; 東京時層地図 for iPad does not.

### Which is updated more often, 東京時層地図 for iPad or OSM sketch?

東京時層地図 for iPad ships an update every 14 months, and OSM sketch every 4 months. Most recently, 東京時層地図 for iPad was updated on October 23, 2026 and OSM sketch on October 7, 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.*