ColorCorder vs AIメールくん
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColorCorder
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You can find favorite colors by manipulating the values of red, green, and blue with the slider. By tapping the color you created you can set the background color so you can search for a combination that is compatible with the background color. In addition, since the contrast ratio of the two colors being displayed is displayed, it can be confirmed whether it complies with the design guidelines. Since it is possible to check the RGB value and the HEX value starting from #, the created color can be used as it is as WEB It can be used for production and application development. You can use this application to make your work more efficient.
AIメールくん
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ビジネスメールがなかなか書き終わらないことはありませんか？ AIメールくんを使えば、ビジネスメールを簡単に完成させることができます！ ◆機能◆ ・ビジネスメールで伝えたい主旨を入力すると、メールが完成する ◆使い方◆ 1. メールで伝えたい主旨を入力する 3. 完成したビジネスメールをコピーする 5. メールアプリで送信する ◆こんな方にオススメ◆ ・ビジネスメールで伝えたいことはあるのに、書き終わらない人 ・メールを書く時間は、伝えたいことを考えるのに集中したい人 ・メールを書く以外の仕事に時間を使いたい人 ビジネスメールは「AIメールくん」で簡単に完成させよう！
Screenshots
Verdict
The clearest difference is in-app purchases: ColorCorder at none against AIメールくん's 1. ColorCorder also leads on device support (3 vs 1) and iOS requirement (10.0 vs 16.0). AIメールくん's advantage is ads (none vs shown) and update cadence (every 9 days vs every 10 months). On price 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
Both are free to download. AIメールくん sells 1 in-app purchase, starting at $6.99 per 7 days. ColorCorder asks for nothing beyond the download.
ColorCorder ships an update every 10 months, AIメールくん every 9 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.
| Parameter | ColorCorder | AIメールくん |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 20 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Haruki Saburi | AppEngine |
In-app purchases
ColorCorder
No in-app purchases
AIメールくん
- Premium3 Days trial$6.997 Days
