# 一应必达 vs SketchMap

The clearest difference is ads: 一应必达 at none against SketchMap's shown. 一应必达 also leads on iOS requirement (12.0 vs 15.0). SketchMap's advantage is update cadence (every 11 days vs monthly). 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.

一应必达 ships an update monthly, SketchMap every 11 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 一应必达 | SketchMap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 11 days** |
| Size | 222 MB | 29 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [一应科技](https://appshunter.io/developer/1484306407) | [Tatsumi Oikawa](https://appshunter.io/developer/1635976900) |

## What reviewers say

### 一应必达

[App page](https://appshunter.io/ios/app/id6444039966)

**Features:** macOS Compatibility

**In-app purchases:** none


### SketchMap

[App page](https://appshunter.io/ios/app/sketchmap/id6738701125)

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

**In-app purchases:** none


## Frequently asked questions

### Is 一应必达 free?

一应必达 is free to download, with no in-app purchases.

### Is SketchMap free?

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

### Do 一应必达 or SketchMap have ads?

SketchMap shows ads; 一应必达 does not.

### Which is updated more often, 一应必达 or SketchMap?

一应必达 ships an update monthly, and SketchMap every 11 days. Most recently, 一应必达 was updated on October 27, 2026 and SketchMap on October 24, 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.*