Comparison

Simple Caffeine vs うんころぐ

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

Head to head

About

Simple Caffeine

Easily track your caffeine intake with a simple interface. This app saves your caffeine consumption data directly to Apple Health, requiring access to your health data.

Highlights

Simple caffeine logging
Apple Health integration
Track intake history
Minimalist design

Features

Read full description

カフェイン摂取量が気になるが、あまり細かく摂取量を記録できない方に、シンプルな操作で記録できるようにするアプリです。 iPhone のヘルスケアにカフェイン摂取量を保存するのでヘルスケアへのアクセスが必要になります。

About

うんころぐ

Features

Read full description

毎日のうんこを記録しよう。このアプリは、日々の排便記録を簡単に管理できるiPhone & Apple Watchアプリです。うんこの時間や量、状態を記録することで、健康管理にお役立てください。 iPhone だけでも記録はできますが、 Apple Watchを使えばさらに簡単に記録が可能です。あっ、最後にうんこをしたは3日前だ…

Screenshots

Simple Caffeine3 screens

うんころぐ1 screens

Verdict

The call

The clearest difference is price: うんころぐ at Free against Simple Caffeine's $0.99. うんころぐ also leads on update cadence (every 3 days vs every 8 months). Simple Caffeine's advantage is ads (none vs shown) and iOS requirement (12.0 vs 18.0). On 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

うんころぐ is free to download; Simple Caffeine costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Caffeine ships an update every 8 months, うんころぐ every 3 days. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 4 level

Simple Caffeine versus うんころぐ: the parameters behind the verdict, then further details
Parameter	Simple Caffeine	うんころぐ
Price	$0.99	Free — better
Positive reviews	75.0% of reviews	—
Update frequency	Every 8 months	Every 3 days — better
Ads	No — better	Yes
In-app purchases	No	No
Monetization	Paid	—
Devices	iPhone, iPod, Apple Watch — better	iPhone, Apple Watch
Requires iOS	12.0 — better	18.0
Further details — not scored
Size	18 MB	6 MB
Age rating	4+	4+
Developer	feb19	Yutaka Ino

In-app purchases

None

Simple Caffeine

No in-app purchases

None

うんころぐ

No in-app purchases

Questions

Is Simple Caffeine free?

Simple Caffeine costs $0.99, with no in-app purchases.

Is うんころぐ free?

うんころぐ is free to download, with no in-app purchases.

Do Simple Caffeine or うんころぐ have ads?

うんころぐ shows ads; Simple Caffeine does not.

Which is updated more often, Simple Caffeine or うんころぐ?

Simple Caffeine ships an update every 8 months, and うんころぐ every 3 days. Most recently, Simple Caffeine was updated on October 4, 2026 and うんころぐ on October 11, 2026.