Comparison

DayLog vs Planck Fasting

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

Head to head
About

DayLog

Capture your daily moments instantly with this fast and private journaling app. Log your day in seconds with quick entries or free writing, and visualize your consistency with heatmaps. Your memories stay securely on your device, completely offline.

Highlights
  • Lightning fast entry
  • Visual heatmaps and calendar view
  • 100% private and offline
  • Attach photos to entries
  • Time-based prompts
  • Daily reminders
  • Easy export to clipboard
Features
Read full description

Capture your daily moments instantly. DayLog is a simple journaling app built for speed and privacy. You can log your day in seconds using our quick entry format or just write freely. It is completely up to you. Key Features: LIGHTING FAST ENTRY: - Quick entry mode lets you treat one line as one entry - The text field is always visible so you can just type - No complex forms or setup required VISUALIZE YOUR LIFE: - Track your consistency with beautiful heatmaps - Browse your memories in the calendar view - Search through all your entries instantly 100% PRIVATE & OFFLINE: - No accounts, cloud sync, or tracking - Everything stays securely on your device - Works completely offline RICH MEMORIES: - Attach photos from your camera or library - Use time based prompts for Morning, Afternoon, and Night - Set daily reminders to help build the habit EASY EXPORT: - Copy your entries to the clipboard in a list format - Perfect for backing up to Notes or Google Docs DayLog feels as simple as the Notes app but it is designed specifically for daily logging. There are no overwhelming features, just a clean space for your thoughts. Download DayLog today and start your journey.

About

Planck Fasting

This app provides a simple intermittent fasting timer with pre-set protocols. It tracks your fasting periods and offers a clean history of completed fasts. Designed for privacy, it works offline and syncs via iCloud without requiring accounts or tracking.

Highlights
  • Intermittent fasting timer
  • Pre-set fasting protocols
  • Fasting history tracking
  • Live progress ring
  • Offline functionality
  • iCloud syncing
  • Dark UI
Features
Read full description

Planck Fasting is an intermittent fasting timer that gets out of your way. Pick a protocol, hit start, and the timer runs. When you break your fast, it goes into your history. That is the whole app. PROTOCOLS 14:10 for a gentle start 18:6 for deeper ketosis 20:4 for advanced fasters FEATURES A live ring that shows how far into the fast you are Clean history of every completed fast with start time, end time, and duration Pick your default protocol once and forget it Dark UI built for late nights and early mornings Works fully offline Syncs across your iPhone and iPad through your private iCloud database PRIVACY No accounts. No tracking. No ads. No analytics. Your fasting data lives on your device and in your own iCloud, nowhere else. NOT MEDICAL ADVICE Planck Fasting is a tracking tool, not a medical device. Talk to a qualified clinician before starting any fasting protocol, especially if you are pregnant, breastfeeding, taking medication, or have a history of disordered eating. THE PLANCK SERIES Planck Fasting is part of a small family of focused single purpose apps. Same dark aesthetic, same hbar mark, same idea: do one thing, do it well, then get out of the way.

Screenshots

DayLog4 screens
Planck Fasting2 screens

Verdict

The call

DayLog and Planck Fasting are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for DayLog against 5.0 for Planck Fasting. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

DayLog ships an update every 2 weeks, Planck Fasting weekly. The most recent releases landed on October 30, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences
DayLog versus Planck Fasting: the parameters behind the verdict, then further details
ParameterDayLogPlanck Fasting
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size2 MB1 MB
Age rating4+17+
DeveloperAnderson LiewYeong Kwon

In-app purchases

None

DayLog

No in-app purchases

None

Planck Fasting

No in-app purchases

Questions

Is DayLog free?
DayLog is free to download, with no in-app purchases.
Is Planck Fasting free?
Planck Fasting is free to download, with no in-app purchases.
Which has better reviews, DayLog or Planck Fasting?
DayLog and Planck Fasting are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do DayLog or Planck Fasting have ads?
Neither DayLog nor Planck Fasting shows ads.
Which is updated more often, DayLog or Planck Fasting?
DayLog ships an update every 2 weeks, and Planck Fasting weekly. Most recently, DayLog was updated on October 30, 2026 and Planck Fasting on October 7, 2026.

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