# Simple Caffeine vs on

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.

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.

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.

## The numbers

| Metric | Simple Caffeine | on |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | Paid | — |
| Size | 18 MB | 24 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [feb19](https://appshunter.io/developer/358045838) | [plpl Inc.](https://appshunter.io/developer/1487357260) |

## What reviewers say

### Simple Caffeine

[App page](https://appshunter.io/ios/app/simple-caffeine/id1451062048)

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:** macOS Compatibility

**In-app purchases:** none


### on

[App page](https://appshunter.io/ios/app/on-daily-planner/id6751531234)

**In-app purchases:** none


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*