Comparison

MoodLog vs Simple Mood Log

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

Head to head
About

MoodLog

Easily log your daily mood, sleep, and physical condition. Track patterns with calendar and graph views. Customize what you record and set reminders to maintain consistency.

Highlights
  • Mood and sleep logging
  • Calendar and graph visualization
  • Customizable recording items
  • Reminder function
  • Dark mode support
  • Search function
Features
Read full description

This application allows you to easily record your mood and sleep. You can look back with a calendar and graph. Why don't you keep a record and check your pattern objectively? [Recommended when you...] are feeling down lately. having mood swings. are easily irritated. want to check your mood changes objectively. have an unstable sleep rhythm want to easily record your daily physical condition. want to keep track of what medications you’ve taken. want to check the relationship between mood, appetite and alcohol consumption. want to keep a diary or notes. [Recordable data] ・Morning, afternoon, and evening moods ・Sleep time ・Physical condition ・Medication ・Appetite ・Drinking ・Exercise ・Bathing ・Menstruation ・Memo [Settings menu] You can customize the items to be recorded, your mood, physical condition, etc. ・Items to be recorded ・Edit sleep time ・Edit mood ・Edit physical condition ・Reminder [Premium plan] Cat Mood Icons ad-free Touch ID / Face ID lock text output PDF output (Graphs by month. Available on iPhone with iOS 15 or later. ) [Other features] Easy search function Reminder function to prevent forgetting to input data No user registration required Dark mode support is easy on the eyes even in dark areas ---------------- License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Simple Mood Log

Easily track your daily mood fluctuations with this intuitive app. Record your feelings, add notes and activities, and gain insights through detailed weekly and monthly analysis graphs. It's designed for quick logging and comprehensive mood tracking.

Highlights
  • Daily mood recording
  • Memo and activity tagging
  • Add past data
  • Weekly/monthly analysis
  • Mood percentage graphs
  • Simple and easy to use
Features
Read full description

An app that allows you to record and analyze your mood on a daily basis. Feeling like your mood is fluctuating a lot lately? Why not try recording your mood changes? The registration process is incredibly simple! Just open the app, select your current mood, and press the save button. For those who want to provide more detailed records, we also offer a memo field and activity tags. Even if you forget to record your mood, you can add past data from the "History" screen, so there's no need to worry.   On the "Analysis" screen, you can check your activities for a week or a month in a ranking format, and view the percentage of different moods in a graph. ● Features ・Simple design and easy to use. ・No bothersome login. ・Detailed analysis of mood changes on the analysis screen. ●Disclaimer This App is not medical or treatment advice. It is neither professional diagnosis, opinion or service – and may not be treated as such by the user. We strongly recommend that you consult your own physician or another available health professional regarding any diagnosis, findings or interpretation. ● Privacy Policy https://apps.seeds-digital.com/privacy-policy/ ● Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MoodLog4 screens
Simple Mood Log4 screens

Verdict

The call

The clearest difference is update cadence: Simple Mood Log at every 3 days against MoodLog's every 3 weeks. Simple Mood Log also leads on review sentiment (100% vs 80%) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model 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

Both are free to download. MoodLog sells 2 in-app purchases, starting at $2.49 per month and Simple Mood Log sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MoodLog ships an update every 3 weeks, Simple Mood Log every 3 days. The most recent releases landed on September 19, 2026 and August 10, 2026 respectively.

Scorecard3 real differences · 5 level
MoodLog versus Simple Mood Log: the parameters behind the verdict, then further details
ParameterMoodLogSimple Mood Log
PriceFreeFree
Positive reviews80.0% of reviews100.0% of reviews — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size7 MB51 MB
Age rating4+4+
DeveloperMieko KomatsuNAOYA ONO

Customer experience

MoodLog

Written reviews50 reviews
Positive80.0%
Neutral12.0%
Negative8.0%

Simple Mood Log

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

MoodLog

Subscriptions2
  • Monthly Premium$2.491 Month
  • Annual Premium$21.491 Year
2 purchases

Simple Mood Log

Subscriptions1
  • Premium Plan$0.991 Month
One-time1
  • Support Developer$0.99

Questions

Is MoodLog free?
MoodLog is free to download, with in-app purchases available.
Is Simple Mood Log free?
Simple Mood Log is free to download, with in-app purchases available.
Do MoodLog or Simple Mood Log have ads?
Both MoodLog and Simple Mood Log show ads.
Which is updated more often, MoodLog or Simple Mood Log?
MoodLog ships an update every 3 weeks, and Simple Mood Log every 3 days. Most recently, MoodLog was updated on September 19, 2026 and Simple Mood Log on August 10, 2026.

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