Bode Plot vs Duckier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bode Plot
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Bode Plotは、伝達関数 G(s) を入力するだけでボード線図（ゲイン線図と位相線図）を自動生成するアプリです。 ・伝達関数をそのまま入力（例：G(s)=100/(s*(s+1)^2)） ・ゲイン線図：20log|G(jw)|を表示 ・位相線図：∠G(jw)を表示 ・周波数範囲（10^x）や点数をスライダーで調整 ・入力式は端末内に保存、いつでも続きから
Duckier
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Duckier VPN — Your duck on the internet! Duckier, the clever duck, makes sure no one steals your data. Browse for free, anonymously, and without an account — ready instantly, no stress, no sign-up! Features: 100% free VPN — the duck works for you, no subscription. No account & no registration — browse instantly, no paperwork. Fast & reliable — Duckier gets you everywhere, worldwide. Private browsing — your data stays with you, not with others. Borderless internet — the duck opens every door for you. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://duckier.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Bode Plot at none against Duckier's 2. Duckier's advantage is update cadence (fortnightly vs every 5 months) and iOS requirement (15.1 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. Duckier sells 2 in-app purchases, starting at $9.99 per month. Bode Plot asks for nothing beyond the download.
Bode Plot ships an update every 5 months, Duckier fortnightly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.
| Parameter | Bode Plot | Duckier |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Yuta Nishimatsu | DUCKIER INTERACTIVE - FZCO |
In-app purchases
Bode Plot
No in-app purchases
Duckier
- Pro Monthly$9.991 Month
- Pro Yearly$39.991 Year
