Comparison

Calmgraph vs MindFlow

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

Head to head
About

Calmgraph

Features
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Calmgraph turns your daily stress into one number you can actually act on - fully on-device, no subscription. ■ Stress score (0-100) From Apple Watch HRV, resting heart rate, and sleep, measured against YOUR personal baseline rather than a single absolute value. The first 14 days are a calibration period shown as provisional. ■ Cause tags and calendar Tag work, sleep, exercise, caffeine and more, layered onto your score. The calendar view shows a month at a glance, and you can tap any past day to fix its tags or check-in. ■ Weekly insight and tag correlations See what likely moved your score each week. The Pro correlation report compares your average on days with a tag against days without it, and always shows the sample size. These are correlations, not conclusions. Step count, respiratory rate and deep sleep appear alongside as automatic tags, split at your own quartiles. They never change the score itself. ■ Apple Watch and widgets The Watch app and complication put your score on your watch face and let you check in from your wrist - free. Home and Lock Screen widgets are part of Pro. ■ Breathing guide and reminders A 1, 3, or 5 minute breathing guide for the days that sit in the strain band. Daily logging reminders and a weekly review notification are optional. ■ One-time purchase and backup Buy once instead of subscribing. There is no cloud sync, but you can export a backup to a single file and restore it on another device. ■ Monthly & yearly summary / Weekly history (Pro) Averages by month and year, with the calm / mixed / strained mix. Past weeks with their average and what was moving your score. All measurements are processed on your device. Nothing is sent off-device, collected, or used for advertising. Calmgraph is not a medical device and is not intended to diagnose or treat any condition. Consult a healthcare professional about any health concern.

About

MindFlow

Features
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ペンが重い日は、声からでいい。 MindFlowは、話すだけで今日を残せるAI音声ジャーナリング。 相棒のNovaが寄り添い、散らばった気持ちを「あとから辿れる地図」にします。 手書きの日記、三日で折れませんでしたか? うまく書けなくて、画面を閉じてしまったことは? MindFlowは、うまく話す必要も、きれいな文章もいりません。 マイクを押して、いまのまま話せば大丈夫。 —— だから続く。 【MindFlowでできること】 ■ 声でも、文字でも、その日を残せる 疲れた夜も、通勤のすき間も。話すだけで思考を外に出せます。AIが文章に整え、感情もそっと拾います。 ■ Novaが、毎日そっと寄り添う 気分に合わせて声をかけてくれるAIパートナー。記録するほど絆が深まり、「ひとりで抱えなくていい」感覚が育ちます。 ■ 心の波が、ひと目でわかる 喜び・ストレス・熱量をグラフで俯瞰。気になる日はタップで振り返れます。「なんとなく不調」が、言葉になります。 ■ 写真と一緒に、思い出の地図へ その日の写真とジャーナルがひとつに。月ごとのギャラリーと「あの日の情景」で、過去の自分からの小さな手紙が届きます。 ■ 週が終わるたび、Novaから手紙が届く 一週間の頑張りを、やさしい言葉でまとめた週次レター。AIメンターや深い振り返りで、「続ける理由」が自然と増えていきます。 ■ ヘルスケアともつながる(任意) 歩数・睡眠・サイクル周期などを記録や分析に活かせます。体の調子と心の波を、並べて見られます。 —— 無料ではじめられる。 毎日書く土台は無料のまま。 もっと深く知りたくなったら、Plusで週次レターや深い分析へ。 iOSではApp Storeのサブスクリプションから始められます。 MindFlowは、治療や診断のアプリではありません。 つらいときは、専門の支援にも頼ってください。 でも、「今日の自分を、少しだけ外に出す」その一歩なら—— Novaが、静かにそばにいます。 ペンが重い日は、声から。 今日の一行が、未来のあなたへの手紙になります。 【利用規約】 本アプリの自動更新サブスクリプションはAppleの標準利用規約(EULA)に基づきます:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calmgraph4 screens
MindFlow4 screens

Verdict

The call

The clearest difference is update cadence: MindFlow at every 4 days against Calmgraph's every 2 weeks. MindFlow also leads on iOS requirement (15.0 vs 26.0). On price, ads, 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. Calmgraph sells 1 one-off in-app purchase and MindFlow sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Calmgraph ships an update every 2 weeks, MindFlow every 4 days. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 4 level
Calmgraph versus MindFlow: the parameters behind the verdict, then further details
ParameterCalmgraphMindFlow
PriceFreeFree
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size10 MB12 MB
Age rating4+4+
DeveloperYANGLI CHENKaoru Noji

In-app purchases

1 purchases

Calmgraph

One-time1
  • Calmgraph Pro$9.99
2 purchases

MindFlow

Subscriptions2
  • MindFlow Plus(月額)$4.991 Month
  • MindFlow Plus(年額)$29.991 Year

Questions

Is Calmgraph free?
Calmgraph is free to download, with in-app purchases available.
Is MindFlow free?
MindFlow is free to download, with in-app purchases available.
Do Calmgraph or MindFlow have ads?
Neither Calmgraph nor MindFlow shows ads.
Which is updated more often, Calmgraph or MindFlow?
Calmgraph ships an update every 2 weeks, and MindFlow every 4 days. Most recently, Calmgraph was updated on October 25, 2026 and MindFlow on October 18, 2026.

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