Comparison

Amark vs 露出計

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

Head to head
About

Amark

Add custom watermarks with time and location to your photos to prevent forgery. Personalize watermark style, position, size, and date format.

Highlights
  • Add time and location watermarks
  • Prevent photo forgery
  • Customize watermark style
  • Adjust watermark position
  • Customize watermark size
  • Personalize date format
Features
Read full description

「Amark」ウォーターマークカメラ、写真にウォーターマーク(時間・場所)を付けて、偽造写真を防ぎます。 ウォーターマークのスタイル、位置、サイズや日付形式などをカスタマイズできます。

About

露出計

This app acts as a convenient exposure meter for film cameras, offering spot metering capabilities. Easily adjust aperture and shutter speed, and copy exposure data to other apps.

Highlights
  • Exposure meter for film cameras
  • Spot metering
  • Adjustable aperture and shutter speed
  • ISO adjustment
  • Copy exposure data to clipboard
  • Share functionality
Features
Read full description

くろねこ研究所 Kuroneko Lab. フィルムカメラなどの古いカメラを使うときに便利な露出計 スポット測光が可能 Copyボタンに共有機能をつけました コピーする時にメモ帳などの他のアプリを選択できます A convenient exposure meter when using old cameras such as film cameras. Spot metering is possible. 使い方 左のラベルが絞り値(F値)です 右のラベルがシャッタースピード(SS)です 中央は、AV-絞り優先か、TV-シャッタースピード優先かを選択します AV/TVのラベルをタップします How to use The label on the left is the aperture value (F number) The label on the right is Shutter Speed ​​(SS). In the center, select AV-Aperture priority or TV-Shutter speed priority. Tap the AV/TV label. ISOをタップして変更します 縦にスワイプすると絞り値やシャッタースピードを変更できます プラスとマイナスのボタンでも変更できます 上にスワイプする時とプラスボタンは同じ意味です 絞りを開く方向に変更します 画面をタップするとその位置の露出を計測しロックします もう一度タップすると標準の露出計測に戻ります スポット測光のように使えます 画面に写っている明るさを判定しています 「C」マークをTapするとデーターをクリップボードにコピーします メモ帳などにペーストして活用してください 無料版には広告が表示されます 広告なしのEX版が別にあるのでお好きな方はどうぞ EX版では、露出段の変更やEV表示が可能です Tap the ISO to change. Swipe vertically to change aperture value and shutter speed. Tap the screen to measure the exposure at that position and lock it. Tap again to return to standard exposure measurement. Can be used like spot metering. Tap the [C] mark to copy the data to the clipboard.

Screenshots

Amark3 screens
露出計1 screens

Verdict

The call

The clearest difference is ads: Amark at none against 露出計's shown. Amark also leads on monetization model (free vs ad-supported). 露出計's advantage is update cadence (every 6 weeks vs every 8 months) and iOS requirement (12.4 vs 15.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Amark ships an update every 8 months, 露出計 every 6 weeks. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

Scorecard4 real differences · 6 level
Amark versus 露出計: the parameters behind the verdict, then further details
ParameterAmark露出計
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.4 — better
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperAJIS(DALIAN) CO., LTD.takayuki atsumi

Customer experience

Amark

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

露出計

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Amark

No in-app purchases

None

露出計

No in-app purchases

Questions

Is Amark free?
Amark is free to download, with no in-app purchases.
Is 露出計 free?
露出計 is free to download, with no in-app purchases.
Do Amark or 露出計 have ads?
露出計 shows ads; Amark does not.
Which is updated more often, Amark or 露出計?
Amark ships an update every 8 months, and 露出計 every 6 weeks. Most recently, Amark was updated on October 3, 2026 and 露出計 on September 25, 2026.

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