Comparison

Decide by Message vs Chum

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Decide by Message

Features
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Got a dilemma? Lunch choices, weekend plans, or just need a second opinion? You know that feeling when you wish you could just text your crew for a quick answer? This app is your personal decision-making playground! It lets "your registered crew" magically text you back with the perfect answer, all in a fun, chat-style roulette. Just type in your question and options, spin the wheel, and boom! Watch as one of your custom-made "friends" pops up with the random, hilarious, or surprisingly helpful result, just like they're right there in your group chat. It's like a virtual hangout where every spin leads to a decision. Jump into the most unique "pretend-to-chat" roulette and let your custom crew help you pick your next move!

About

Chum

Features
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チェキの枚数管理も、推しとの会話の記録も、これひとつで。 Chumは、特典会で撮ったチェキと、そのとき交わした会話をまとめて残せる推し活アプリです。完全無料・登録不要で、データは端末の中だけに保存されます。 ■ こんな方におすすめ ・特典会で推しと話した内容を忘れたくない ・推しごとに、チェキを何枚撮ったか把握したい ・いつ・どこのライブで撮ったか記録しておきたい ・チェキをアルバムのように見返したい ■ できること 【チェキを管理する】 写真・撮影日・場所・メモを添えてチェキを保存。推しごと・日付順に一覧で見返せます。 【枚数を自動で集計】 総チェキ数と、誰と何枚撮ったかの推しランキングをホーム画面でひと目で確認できます。 【推しとの会話を記録する】 特典会や握手会で交わした会話を、トーク画面風に記録。チェキに紐づけても、会話だけで残してもOK。 【会話を1枚の画像でシェア】 記録した会話をきれいな1枚の画像にして、SNSへそのまま投稿できます。 ■ 安心して使える ・チェキや会話などの思い出データはすべて端末内に保存 ・アカウント登録・ログイン不要 ・広告なし・完全無料 推し活をもっと楽しく、もっと大切に。 Chumで、推しとの思い出をチェキと会話ごと残しましょう。

Screenshots

Decide by Message3 screens
Chum4 screens

Verdict

The call

The clearest difference is ads: Chum at none against Decide by Message's shown. Decide by Message's advantage is update cadence (every 10 days vs every 2 months) and iOS requirement (16.6 vs 18.5). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Decide by Message ships an update every 10 days, Chum every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 3 level
Decide by Message versus Chum: the parameters behind the verdict, then further details
ParameterDecide by MessageChum
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better18.5
Further details — not scored
Size4 MB20 MB
Age rating4+4+
DeveloperKana UchidaKota Sakurai

In-app purchases

None

Decide by Message

No in-app purchases

None

Chum

No in-app purchases

Questions

Is Decide by Message free?
Decide by Message is free to download, with no in-app purchases.
Is Chum free?
Chum is free to download, with no in-app purchases.
Do Decide by Message or Chum have ads?
Decide by Message shows ads; Chum does not.
Which is updated more often, Decide by Message or Chum?
Decide by Message ships an update every 10 days, and Chum every 2 months. Most recently, Decide by Message was updated on October 3, 2026 and Chum on October 12, 2026.

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