Comparison

CaffLog vs Emotion Sphere

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

Head to head
About

CaffLog

Features
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CaffLog is an app for managing your caffeine intake smartly. Easily log your daily caffeine consumption and visualize your body's caffeine levels in real time. CaffLog supports your caffeine management goals, whatever they may be. ◆ Who This App Is For 【Boost Your Performance】 For those who want to use caffeine effectively to enhance productivity at work or while studying. 【Cut Back or Limit Caffeine】 For those looking to control their intake for health reasons, pregnancy, or breastfeeding. 【Understand Sleep Impact】 For those who want to track how caffeine affects their sleep and find the right timing. 【Discover Your Patterns】 For those who want to visualize their intake trends and understand their habits objectively. ◆ Key Features 【Caffeine Intake Log】 Easily record caffeinated drinks like coffee, tea, and energy drinks. 【Real-Time Caffeine Levels】 Check your estimated current caffeine levels in your body at any time. 【Heatmap Review】 Visualize your daily intake patterns with a heatmap. Spot your trends at a glance. 【Customize Your Home Screen】 Decorate your home with cute items like coffee beans, donuts, and cookies. Choose from wood, stone, or solid backgrounds and pick your accent color to make the space truly your own. 【Cute & Easy-to-Use Design】 A warm, friendly design that makes daily logging enjoyable. ◆ CaffLog Premium (Optional) CaffLog is free to use. CaffLog Premium unlocks additional convenient features. 【CaffLog Premium】 1. Customize caffeine half-life 2. Customize decorations, backgrounds, and themes 3. Ad-free experience 【Pricing】 Monthly Plan: $2.99 Auto-renews monthly from the date of purchase. 【Auto-Renewal Details】 Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. 【Payment】 Payment will be charged to your Apple ID.

About

Emotion Sphere

Features
Read full description

Emotion Sphere – Record Your Feelings as a Beautiful Sphere, Every Hour Emotion Sphere allows you to record your current feelings every hour using emojis, and visualizes your daily emotions as a single, colorful sphere. Based on the emotions you select, colors softly blend together, expressing your mental state throughout the day as a beautiful gradient. The app also aggregates emotions from users around the world, letting you view the “Global Emotion Sphere” from the previous day at a glance. With no social features, no sharing, and no comparisons, Emotion Sphere offers a calm space to quietly reflect on your feelings. [Simple Hourly Emotion Tracking] ・Record your emotions once every hour by selecting an emoji ・Automatically generate a daily “Emotion Sphere” based on emotion ratios ・A countdown timer shows when the next entry is available Emotion Color Mapping ・Happiness → Yellow ・Sleepiness → Blue ・Sadness → Light Blue ・Anger → Red ・Love → Pink As emotions overlap, colors blend smoothly, capturing the “landscape of your mind” within a single sphere. [Your Personal Emotion Gallery] ・Review your daily emotion data in a simple list ・Each day is saved as a unique emotion sphere ・Visualize long-term emotional changes and patterns [Explore the World’s Emotion Sphere] ・Aggregate emotion data from users worldwide ・View the world’s collective mood as a single sphere ・Gently observe the differences between your emotions and global trends [Notifications to Build a Habit] ・Receive push notifications when it’s time to record your emotions ・Helps you stay consistent and build a healthy habit [Perfect For] ・Visualizing your emotional flow ・Tracking feelings without writing long journal entries ・Supporting daily mental well-being ・Understanding global emotional trends ・Anyone looking for a quiet, distraction-free app [Easy to Use] ・Open the app and select an emoji ・No complex settings and no social features ・Designed exclusively for dark mode for a calm experience 【Auto-Renewable Subscription】 Premium features are available with an auto-renewable subscription. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Privacy Policy: http://sasakyy.com/emotion/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ [Disclaimer] This app does not provide medical or psychological diagnoses. All information is intended for personal awareness and self-care purposes only.

Screenshots

CaffLog3 screens
Emotion Sphere4 screens

Verdict

The call

The clearest difference is update cadence: CaffLog at weekly against Emotion Sphere's every 5 weeks. Emotion Sphere's advantage is iOS requirement (13.0 vs 15.0). On price, 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

Both are free to download. CaffLog sells 1 in-app purchase, starting at $2.99 per month and Emotion Sphere sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CaffLog ships an update weekly, Emotion Sphere every 5 weeks. The most recent releases landed on September 10, 2026 and September 4, 2026 respectively.

Scorecard2 real differences · 4 level
CaffLog versus Emotion Sphere: the parameters behind the verdict, then further details
ParameterCaffLogEmotion Sphere
PriceFreeFree
Update frequencyWeekly — betterEvery 5 weeks
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size70 MB43 MB
Age rating4+4+
DeveloperHaruya OyamaRyogo Owashi

In-app purchases

1 purchases

CaffLog

Subscriptions1
  • CaffLog Premium7 Days trial$2.991 Month
2 purchases

Emotion Sphere

Subscriptions2
  • Emotion Sphere Premium (Monthly)7 Days trial$2.991 Month
  • Emotion Sphere Premium (Annual)7 Days trial$29.991 Year

Questions

Is CaffLog free?
CaffLog is free to download, with in-app purchases available.
Is Emotion Sphere free?
Emotion Sphere is free to download, with in-app purchases available.
Do CaffLog or Emotion Sphere have ads?
Both CaffLog and Emotion Sphere show ads.
Which is updated more often, CaffLog or Emotion Sphere?
CaffLog ships an update weekly, and Emotion Sphere every 5 weeks. Most recently, CaffLog was updated on September 10, 2026 and Emotion Sphere on September 4, 2026.

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