補数チャレンジ！ vs Cyber Soroban
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
補数チャレンジ！
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特徴： 楽しみながら学習： ゲーム感覚で補数を学び、算数の基礎を身につける。 段階的な難易度： 初心者から上級者まで、全てのレベルに対応した課題を用意。 即時フィードバック： 解答の正誤に応じた即時フィードバックで、理解を深める。 保護者向け追跡機能： 子どもの進捗状況を追跡し、学習のサポートを行う。 全年齢対応： 6歳から12歳の子どもたちが楽しく学べる内容。
Cyber Soroban
Experience a futuristic abacus with a cyberpunk aesthetic. Flick luminous beads on a neon display for calculation. Enjoy immersive sound effects and a unique visual style inspired by TRON.
- Cyberpunk UI with neon glow
- Luminous gem-like beads
- Electronic click and glass chime sounds
- Full 13-column abacus calculation
- Landscape-only immersive experience
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Cyber Soroban - A Futuristic Abacus Flick luminous beads on a neon HUD display. A futuristic abacus app inspired by the world of TRON. Features: - Cyberpunk UI with scanlines and neon glow - Gem-like hard-edged luminous beads - Electronic click and glass chime sounds - Full 13-column abacus calculation - Landscape-only immersive experience
Screenshots
Verdict
The clearest difference is price: 補数チャレンジ！ at Free against Cyber Soroban's $0.49. On in-app purchases and iOS requirement 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
補数チャレンジ！ is free to download; Cyber Soroban costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 補数チャレンジ！ | Cyber Soroban |
|---|---|---|
| Price | Free — better | $0.49 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 months |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | — | iPhone — better |
| Requires iOS | 17.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | +4 |
| Developer | Kazuhiko Maruyama | satoshi amasaki |
In-app purchases
補数チャレンジ！
No in-app purchases
Cyber Soroban
No in-app purchases
