Plalog vs Retro Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plalog
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カメラをパッケージに向けるだけで、商品名を自動認識してデータベース検索。バーコードスキャンにも対応。積みプラの管理から完成品の記録まで、プラモデルライフをトータルサポートします。 【主な機能】 • パッケージ文字スキャン(OCR)— カメラで商品名を読み取って即検索 • バーコードスキャン — JANコードから瞬時にキットを特定 • 9,400件超のカタログ — バンダイ・タミヤ・ハセガワ・アオシマ・フジミ・コトブキヤに対応 • 積みプラ管理 — 購入済み・制作中・完成品をステータスで管理 • 完成品ギャラリー — 塗装・改造の記録を写真付きで保存 • CloudKit同期 — 複数デバイス間でコレクションを自動同期 • パイロットプロフィール — 制作実績をスタッツで可視化 【こんな方に】 積みプラが増えすぎて把握できない方、完成品をきれいに記録したい方、新製品情報をいち早くチェックしたい方におすすめです。
Retro Calc
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A beautifully simple calculator with a nostalgic retro design. Featuring a classic seven-segment display and warm, vintage colors, Retro Calc makes everyday math feel pleasant and effortless. No clutter, no distractions — just the essentials, crafted with care. Highlights - Focused on the four basic operations (+ − × ÷) - A seven-segment display drawn like the real thing, with tapered, softly rounded strokes - Up to 12 digits, with comma grouping that keeps large numbers readable at a glance - Sculpted keys that feel good to press, with haptic feedback on every tap - Large, easy-to-read key labels - Safe error handling for division by zero and overflow - VoiceOver support Your privacy, respected - No internet connection, ever - No data collection of any kind - No ads - No account required Simple by design. A calculator you'll reach for every day.
Screenshots
Verdict
The clearest difference is in-app purchases: Retro Calc at none against Plalog's 3. Retro Calc also leads on iOS requirement (17.0 vs 26.2). On price, ads 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
Both are free to download. Plalog sells 3 one-off in-app purchases. Retro Calc asks for nothing beyond the download.
| Parameter | Plalog | Retro Calc |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroshi Suga | Shuji Okuno |
In-app purchases
Plalog
- Standard Plan$1.99
- Upgrade Add-on$1.99
- Commander Pack$2.99
Retro Calc
No in-app purchases









