レンジで何秒? vs FlashDrop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
レンジで何秒?
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冷凍食品をレンジで解凍する時などに、パッケージに書いてあるW数・個数でない場合、何秒であたためるかを計算します。 設定方法は、まずパッケージに書いてある、W数・個数・あたため時間を設定して、使用するレンジのW数と個数を入力します。 レンジの性能・あたためる食品によって、多少誤差があると思うので、あたため時間は目安としてお使いください。 ※ W(ワット)
FlashDrop
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FlashDrop is a simple, secure, and fast file-sharing app. Just enter the same Room ID to instantly share any file—photos, videos, documents, and more. 【Key Features】 Simple sharing via Room ID - Just enter a Room ID of 1 to 16 characters - Share files with anyone who enters the same ID - Automatically saves previously used Room IDs P2P (Peer-to-Peer) Connection - Direct data transfer between devices - High speed since it bypasses servers - Emphasizes privacy and security Supports Diverse File Formats - Photos/Videos: Automatically saved to your camera roll - Documents: Saved to your download folder - Text messages: Securely send sensitive info like passwords Real-time transfer status display - Check transfer progress in real time - Shows file size and transfer speed - Includes cancel function Batch send multiple files - Select up to 20 files simultaneously - Supports drag-and-drop - Instantly share photos taken with your camera 【Useful Scenarios】 • Sharing photos and videos with friends and family • Quickly distributing meeting materials • Transferring files between devices • Sharing large files • Securely sending passwords and authentication codes 【Reliable Privacy Protection】 - Files are never stored on servers - Direct peer-to-peer transfers between devices - Room IDs persist after use for easy future access - All communications are encrypted for secure transfer 【Supported File Formats】 Images: JPEG, PNG, GIF, HEIC, etc. Videos: MP4, MOV, AVI, etc. Documents: PDF, DOCX, XLSX, PPTX, etc. Others: ZIP, TXT, CSV, etc. - All file formats supported 【How to Use】 1. Launch the app and enter the Room ID 2. Have the recipient enter the same Room ID 3. Select files and tap the Send button 4. Transfer starts automatically once the recipient approves 【Recommended Environment】 - Recommended for use on Wi-Fi (for large files) - Compatible with iOS 14.0 or later - Available on both iPad and iPhone Terms of Service: https://flash-drop.web.app/terms_en.html Privacy Policy: https://flash-drop.web.app/privacy_en.html
Screenshots
Verdict
The clearest difference is in-app purchases: レンジで何秒? at none against FlashDrop's 2. レンジで何秒? also leads on ads (none vs shown) and update cadence (every 4 days vs every 10 days). FlashDrop's advantage is iOS requirement (13.0 vs 15.6). On price 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. FlashDrop sells 2 in-app purchases, starting at $1.99 per month. レンジで何秒? asks for nothing beyond the download.
レンジで何秒? ships an update every 4 days, FlashDrop every 10 days. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | レンジで何秒? | FlashDrop |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days — better | Every 10 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Toshihiro Nakane | ButterFalcon |
In-app purchases
レンジで何秒?
No in-app purchases
FlashDrop
- Monthly$1.991 Month
- Annual$17.991 Year









