Comparison

ScreenPenguin vs ZMK Editor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ScreenPenguin

Features
Read full description

Organize photos, saved images, and screenshots with a swipe, then review your selections before deleting. Choose “All images” as the cleanup target to include photos and saved images the app can access. Photo access permission is required. Swipe left to mark an image for deletion, right to keep it, or up to decide later. Work through your collection at your own pace. SORT YOUR COLLECTION You can also choose to organize screenshots only. REVIEW BEFORE DELETING Check the deletion list and previews, and remove any image you want to keep before confirming. REVIEW SAVED IMAGES See images you swiped right on in the saved list. Removing an item from that list does not delete the original image from your device. TRACK YOUR PROGRESS See the number of images deleted, estimated storage savings, and cleanup history. Storage savings are estimates. CHOOSE YOUR LOOK Select light mode, dark mode, or follow your device settings. Start organizing your images with ScreenPenguin. Images are processed on your device. Advertising and analytics may use a network connection.

About

ZMK Editor

Features
Read full description

ZMK Editor は、ZMK ファームウェアを使ったカスタムキーボードのキー配列を、iPhone から直感的に編集・管理できるアプリです。 レイヤー構成や各キーの割り当てを見やすく可視化し、タップ操作だけでレイアウトを変更できます。 【主な機能】 ・接続した ZMK キーボードのレイアウト読み込み ・キー割り当て、レイヤー構成の編集 ・編集内容の保存と適用 ・複数キーボード/プロファイルの管理 【こんな方におすすめ】 ・ZMK キーボードのレイアウトを頻繁に調整したい方 ・PC なしで、手元の iPhone から配列を編集したい方 ・複数レイアウトを切り替えながら最適な配列を探したい方 ※このアプリの利用には、ZMK ファームウェアを搭載した対応キーボードが必要です。

Screenshots

ScreenPenguin3 screens
ZMK Editor4 screens

Verdict

The call

The clearest difference is in-app purchases: ScreenPenguin at none against ZMK Editor's 1. ScreenPenguin also leads on iOS requirement (15.0 vs 17.0). ZMK Editor's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ZMK Editor sells 1 one-off in-app purchase. ScreenPenguin asks for nothing beyond the download.

UpkeepUpdate frequency

ScreenPenguin ships an update every 3 days, ZMK Editor every 4 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level
ScreenPenguin versus ZMK Editor: the parameters behind the verdict, then further details
ParameterScreenPenguinZMK Editor
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 4 days
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size36 MB31 MB
Age rating4+4+
DeveloperKAZUKI KUMAZAWAShingo Matsuda

In-app purchases

None

ScreenPenguin

No in-app purchases

1 purchases

ZMK Editor

One-time1
  • Full Access$9.99

Questions

Is ScreenPenguin free?
ScreenPenguin is free to download, with no in-app purchases.
Is ZMK Editor free?
ZMK Editor is free to download, with in-app purchases available.
Do ScreenPenguin or ZMK Editor have ads?
ScreenPenguin shows ads; ZMK Editor does not.
Which is updated more often, ScreenPenguin or ZMK Editor?
ScreenPenguin ships an update every 3 days, and ZMK Editor every 4 days. Most recently, ScreenPenguin was updated on October 31, 2026 and ZMK Editor on November 5, 2026.

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