# UMEMORY vs SketchCast

The clearest difference is update cadence: UMEMORY at every 2 days against SketchCast's every 2 weeks. UMEMORY also leads on iOS requirement (11.0 vs 15). On price, ads, 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.

UMEMORY ships an update every 2 days, SketchCast every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | UMEMORY | SketchCast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 66 MB | 104 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杰升 周](https://appshunter.io/developer/1855957748) | [磊 胡](https://appshunter.io/developer/6811087157) |

## What reviewers say

### UMEMORY

[App page](https://appshunter.io/ios/app/umemory/id6755797060)

**Features:** macOS Compatibility

**In-app purchases:** none


### SketchCast

[App page](https://appshunter.io/ios/app/sketchcast/id6811313066)

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

**In-app purchases:** none


## Frequently asked questions

### Is UMEMORY free?

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

### Is SketchCast free?

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

### Do UMEMORY or SketchCast have ads?

Neither UMEMORY nor SketchCast shows ads.

### Which is updated more often, UMEMORY or SketchCast?

UMEMORY ships an update every 2 days, and SketchCast every 2 weeks. Most recently, UMEMORY was updated on October 30, 2026 and SketchCast on October 31, 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.*