Radar Chart vs Rarder Chart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radar Chart
Easily create radar charts directly on your mobile device. Input chart title, number of items, item names, and data to generate your chart. Save or copy your creations with simple operations.
- Create radar charts
- Input chart title
- Define number of items
- Enter item names and data
- Save chart as image
- Copy chart to clipboard
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I want to make a radar chart, but it is troublesome to start up a personal computer. Please use this app in such a case! Creating a radar chart is possible only by inputting the following four items. - Chart title - Number of items - item name - Data for each item The created chart can be saved as an image or copied to the clipboard. Please contact us in the review section or this DM. https://twitter.com/corasck
Rarder Chart
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主な機能 【レーダーチャート作成】 ・項目名と値を入力するだけで、美しいレーダーチャートを自動生成 ・最大15項目まで追加可能 ・6種類のスコア単位に対応 ・値は内部で0.0〜1.0に正規化し、単位ごとに適切な表示値に自動変換 ・メモを添えてチャートの補足情報も記録可能 【フォルダ管理】 ・フォルダ単位でチャートを整理 ・12種類のアイコンからフォルダの見た目をカスタマイズ ・ドラッグ＆ドロップでフォルダ・チャートの並び順を変更 ・テンプレート機能で、新規チャート作成時に固定項目とデフォルト単位を自動セット 【チャート比較】 ・同じフォルダ内のチャートを重ねて比較表示 ・最大6つのチャートを色分けして同時表示 【共有・コラボレーション】 ・招待コードでフォルダを他ユーザーと共有 ・参加リクエスト → オーナー承認のセキュアなフロー ・メンバー管理（追加・削除）、共有フォルダからの退出 【画像エクスポート】 ・レーダーチャートを高解像度画像（3x）として書き出し ・iOS共有シートから直接SNS・メッセージアプリに送信
Screenshots
Verdict
The clearest difference is ads: Rarder Chart at none against Radar Chart's shown. Radar Chart's advantage is iOS requirement (14.0 vs 26.2). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Radar Chart ships an update every 11 months, Rarder Chart every 6 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.
| Parameter | Radar Chart | Rarder Chart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (251 ratings) — better | — |
| Positive reviews | 71.7% of reviews | — |
| Number of ratings | 251 — better | — |
| Update frequency | Every 11 months | Every 6 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 19 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuya Fujita | Yuta Hoshino |
Bugs and requests
Radar Chart
Reported bugs
2 issues- Login screen freezes
- Incompatible with older devices
Requested features
3 requests- Allow changing maximum values and input increments
- Add option to layer multiple data sets on one chart
- Implement a dark mode or better aesthetic design
Rarder Chart
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Radar Chart
No in-app purchases
Rarder Chart
No in-app purchases
Questions
Is Radar Chart free?
Is Rarder Chart free?
Do Radar Chart or Rarder Chart have ads?
Which is updated more often, Radar Chart or Rarder Chart?
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