# Caffeine Sleep Planner — Caffeine timing for sleep

> Caffeine intake tracker with decay estimation and widgets. (iPhone/iPad app by Dustin Ober.)

- Source: https://appshunter.io/ios/app/caffeine-sleep-planner/id6773001853 (this page in markdown: same URL + `.md`)
- Developer: [Dustin Ober](https://appshunter.io/developer/1881347876)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: English
- Released: 2026-05-28
- Data updated: 2026-08-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/caffeine-sleep-planner/id6773001853/reviews.md

## What is Caffeine Sleep Planner?

Caffeine Sleep Planner helps you log drinks and estimate when active caffeine may fall below your personal threshold. Quickly add common drinks, enter custom caffeine amounts, adjust half-life assumptions, and see a 24-hour decay chart.

Home Screen and Lock Screen widgets keep your current estimate close by. Everything stays on device: no account, no server, no analytics, and no tracking.

The optional tip jar uses Apple's StoreKit and does not unlock app functionality.

## Key features

- Log caffeine drinks
- Estimate caffeine decay
- Custom caffeine amounts
- 24-hour decay chart
- Home and Lock Screen widgets
- On-device data storage

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Tip the Dev | $0.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/caffeine-sleep-planner/id6773001853/reviews.md

### 5/5 — Great Idea!

*2026-06-15*

Since this app is in its infancy stages, it starts with a great concept. It would be nice to be able to edit logged data and the timeline at the bottom of the graph is illegible, it should be readable and or free flowing when the user moves the cursor back-and-forth. I will purchase this app, hoping that the developer will make improvements upon this app as I have not seen another one like it yet.

**Developer response:** Thank you for the feedback. I will be implementing your suggestions on the next release.

## Frequently asked questions about Caffeine Sleep Planner

### How does Caffeine Sleep Planner estimate caffeine decay?

Caffeine Sleep Planner estimates caffeine decay by allowing you to log drinks and their caffeine amounts. You can also adjust the half-life assumptions to personalize the calculation for your body.

### Can I add custom caffeine amounts in Caffeine Sleep Planner?

Yes, Caffeine Sleep Planner allows you to enter custom caffeine amounts for drinks not found in its pre-set list, giving you flexibility in tracking your intake.

### Does Caffeine Sleep Planner have ads?

No, Caffeine Sleep Planner does not contain advertisements. It is a free app with an optional tip jar for support.

### What devices does Caffeine Sleep Planner support?

Caffeine Sleep Planner is available for iPhone and iPad devices.

### Is my data private with Caffeine Sleep Planner?

Yes, all your data stays on your device. Caffeine Sleep Planner does not require an account, use servers, or collect analytics or tracking information.

### How often is Caffeine Sleep Planner updated?

The latest version, 1.2, was released on June 23, 2026, indicating recent development activity. The app was initially released on May 28, 2026.

### What is the age rating for Caffeine Sleep Planner?

Caffeine Sleep Planner has an age rating of 4+, making it suitable for a wide range of users.

### Does Caffeine Sleep Planner integrate with other health apps?

The provided information does not mention integration with other health apps. Caffeine Sleep Planner focuses on on-device caffeine tracking and decay estimation.

## Version history (last 5 releases)

### 1.4 — 2026-08-13

This update focuses on making it easier to build a caffeine and sleep routine you can stick with:

- Streaks: see how many days in a row you've stayed under your bedtime caffeine target, right on the Today tab.
- A friendlier first launch that walks through Quick Log, the Daily Companion, and the Decision Simulator.
- New optional reminders: a gentle daily check-in, a streak-at-risk nudge, and a weekly insights-ready alert. All off by default — turn on only what's useful to you in Settings.
- Small polish throughout Settings, including a direct link to rate the app.

As always, everything stays on your device: no account, no server, no tracking.

### 1.3 — 2026-07-26

A redesigned daily caffeine companion with bedtime-first guidance, drink previews, quick-log undo, private weekly insights, cutoff reminders, interactive widgets, App Shortcuts, and improved iPad and accessibility support.

### 1.2 — 2026-06-23

This update makes Caffeine Sleep Planner easier to review and refine after logging. You can now edit saved caffeine entries, including the drink name, amount, and consumed time. The 24-hour decay chart also has clearer timeline labels and a drag readout so you can inspect estimated active caffeine across the day.

### 1.1 — 2026-06-14

Faster daily logging with reusable custom entries and quick time chips. Added bedtime-aware sleep timing, clearer threshold labels, daily totals, and easier log cleanup. You can also hide or reorder drink presets to match how you actually use the app.

### 1.0 — 2026-05-28

No release notes.

## More apps by Dustin Ober

- [Sundee Fundee Strength](https://appshunter.io/ios/app/sundee-fundee-strength/id6759870888)
- [Sundee Ruck Tracker](https://appshunter.io/ios/app/sundee-ruck-tracker/id6760980683)
- [Load That Bar](https://appshunter.io/ios/app/load-that-bar/id6769888435)
- [Sundee 3D Print Cost](https://appshunter.io/ios/app/sundee-3d-print-cost/id6771582389)
- [FocusFlip Focus Timer](https://appshunter.io/ios/app/focusflip-focus-timer/id6772367335)

All apps by Dustin Ober: https://appshunter.io/developer/1881347876

## Related topics

[caffeine sleep](https://appshunter.io/ios/topics/caffeine-sleep) · [caffeine sleep planner](https://appshunter.io/ios/topics/caffeine-sleep-planner)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*