FlexibleGrouping vs ホイッスル
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlexibleGrouping
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This team division app is an application that allows you to easily divide teams in sports, games, events, etc. With this app, you can flexibly decide the number of people per group, such as 2 vs 3, 4 vs 4 vs 2, etc. Also, up to 10 groups can be set up, with up to 30 people per group. Using the app is very easy. First, the user registers on the member list. You can safely ignore this step. Next, register the information of the group name to which the user belongs. Finally, on the team division screen, select the number of members that make up the group. The number of people can be flexibly set for each group, so it is possible to divide into groups according to the purpose of use. In addition to randomly grouping, this app allows users to freely configure groups. In addition, you can divide into groups without registering as a member, so you can use it easily. As mentioned above, this app is an easy-to-use and convenient team division app. It will be useful in many situations such as sports, games, and events.
ホイッスル
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【主な機能】 1タップでホイッスルを鳴らすことができます。 体育の授業やスポーツの試合で審判をするときにご利用ください。 【クレジット】 音楽: 魔王魂 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: FlexibleGrouping at none against ホイッスル's 2. FlexibleGrouping also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence 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. ホイッスル sells 2 in-app purchases, starting at $1.99 per month. FlexibleGrouping asks for nothing beyond the download.
FlexibleGrouping ships an update fortnightly, ホイッスル every 10 days. The most recent releases landed on September 8, 2026 and September 5, 2026 respectively.
| Parameter | FlexibleGrouping | ホイッスル |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 28 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Daiki Hirao | Naoki Yahata |
In-app purchases
FlexibleGrouping
No in-app purchases
ホイッスル
- プレミアムプラン$1.991 Month
- プレミアムプラン3 Days trial$5.991 Year







