Comparison

Data Rhythm vs ieRcalc

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

Head to head
About

Data Rhythm

Features
Read full description

Visualize Your Life Rhythm with Daily Data "DataRhythm" is an app that rhythmically records your daily health and lifestyle data to help you optimize your lifestyle. Do you have these concerns? Despite exercising regularly, your weight keeps going up… You’re training hard, but your performance remains inconsistent during practice or important events… You’re increasing your client visits in sales activities, yet the results are not showing… In such cases, recording your daily data with this app can reveal patterns and pinpoint causes. App Features Record various data points in one place, such as weight, steps, and visit counts Simple, rhythmic input makes daily tracking easy Visualize data trends through graphs Support rhythmical decision-making based on health and performance data By keeping track of "data" aligned with your daily life rhythm, you might uncover unexpected insights for improvement. Start using DataRhythm to bring rhythm to your life and enjoy a fulfilling daily routine! We welcome your feedback and suggestions!

About

ieRcalc

Features
Read full description

ieRcalcは、計算内容を3つのステージに分けて整理できる電卓アプリです。 見積もりや集計のように複数の項目を扱う場面では、通常の電卓だけでは入力内容や合計を確認しづらいことがあります。ieRcalcなら、ステージごとに項目を分けて入力し、合計を見ながら計算を進められます。 仕事での見積もり管理や作業費の集計はもちろん、買い物、旅行費用、割り勘、家計のメモなど、日常の計算にも使いやすい設計です。テンプレート保存や自動保存にも対応しているため、繰り返し使う計算もスムーズに行えます。

Screenshots

Data Rhythm4 screens
ieRcalc2 screens

Verdict

The call

The clearest difference is ads: ieRcalc at none against Data Rhythm's shown. ieRcalc also leads on update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price, 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

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

Data Rhythm ships an update every 3 weeks, ieRcalc every 4 days. The most recent releases landed on October 9, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level
Data Rhythm versus ieRcalc: the parameters behind the verdict, then further details
ParameterData RhythmieRcalc
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size17 MB37 MB
Age rating4+4+
DeveloperMasaki HayashiREI KAMIKURA

In-app purchases

None

Data Rhythm

No in-app purchases

None

ieRcalc

No in-app purchases

Questions

Is Data Rhythm free?
Data Rhythm is free to download, with no in-app purchases.
Is ieRcalc free?
ieRcalc is free to download, with no in-app purchases.
Do Data Rhythm or ieRcalc have ads?
Data Rhythm shows ads; ieRcalc does not.
Which is updated more often, Data Rhythm or ieRcalc?
Data Rhythm ships an update every 3 weeks, and ieRcalc every 4 days. Most recently, Data Rhythm was updated on October 9, 2026 and ieRcalc on October 25, 2026.

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