Comparison

Simple Caffeine vs on

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

on

Read full description

Want to visualize your daily energy? on is a simple tile-style counter app that helps you see how you spend your time and energy each day. # Perfect for people who: - Feel like days are just passing by - Want to reflect on their lifestyle - Are too busy to notice where their time goes - Work remotely or independently and need their own rhythm - Don’t want strict time tracking # Main Features - Simple Tapping Distribute 12 energy drops each day to tiles such as Work, Hobbies, or People - Reports Discover weekly trends and insights from your resource allocation - Goal Drops Set target drops for each tile and move closer to your ideal balance # Daily Switch Swipe left or right to review past records easily # How to Use 1. Create tiles (Work, Hobbies, People, etc.) 2. Allocate your 12 daily energy drops with a tap 3. Review logs and reports to adjust your activities # Highlights - Easy to continue with a lightweight logging style - Private and personal—your data stays with you Don’t just guess how you spend your time—visualize it and enjoy a more fulfilling day.

Screenshots

Simple Caffeine3 screens
on4 screens

Verdict

The call

The clearest difference is price: on at Free against Simple Caffeine's $0.99. on also leads on update cadence (every 2 days vs every 8 months). Simple Caffeine's advantage is iOS requirement (12.0 vs 15.6). On 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

on 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, on every 2 days. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 5 level
Simple Caffeine versus on: the parameters behind the verdict, then further details
ParameterSimple Caffeineon
Price$0.99Free — better
Positive reviews75.0% of reviews—
Update frequencyEvery 8 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size18 MB24 MB
Age rating4+12+
Developerfeb19plpl Inc.

In-app purchases

None

Simple Caffeine

No in-app purchases

None

on

No in-app purchases

Questions

Is Simple Caffeine free?
Simple Caffeine costs $0.99, with no in-app purchases.
Is on free?
on is free to download, with no in-app purchases.
Do Simple Caffeine or on have ads?
Neither Simple Caffeine nor on shows ads.
Which is updated more often, Simple Caffeine or on?
Simple Caffeine ships an update every 8 months, and on every 2 days. Most recently, Simple Caffeine was updated on October 19, 2026 and on on October 12, 2026.

Other comparisons