Comparison

UseFirst vs ViviDiary

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

Head to head
About

UseFirst

Intelligently manage your belongings with AI-powered features for item recognition, automatic categorization, and expiration date suggestions. Track inventory, set smart notifications, and generate automated lists to reduce waste and stay organized.

Highlights
  • AI item recognition via camera
  • Automatic categorization and details
  • Expiration date suggestions
  • Multi-batch tracking
  • Location-based organization
  • Smart expiration and low stock alerts
  • Automated shopping lists
Features
Read full description

Transform your inventory management with UseFirst - the intelligent organization app that combines AI technology with practical tracking tools for any items you own. AI-POWERED FEATURES - Smart item recognition through camera scanning - Automatic categorization and details detection - Intelligent expiration date suggestions - Advanced photo processing with background removal COMPREHENSIVE INVENTORY MANAGEMENT - Multi-batch tracking for bulk purchases - Flexible quantity and unit management - Location-based organization (home, office, storage, anywhere) - Custom categories for any type of items SMART NOTIFICATIONS - Expiration alerts with customizable timing - Low stock reminders - Batch-specific notifications - Priority-based alert system AUTOMATED LISTS - Auto-generated shopping lists from expired items - Smart suggestions based on usage patterns - Barcode scanning for quick additions - Price tracking and budget management INSIGHTS & ANALYTICS - Waste reduction statistics - Spending analysis and trends - Usage patterns and recommendations - Export data for detailed reporting BEAUTIFUL DESIGN - Clean, intuitive interface - Dark and light mode support - Customizable themes - Responsive layout for all screen sizes PREMIUM FEATURES - Unlimited AI scans - Unlimited items - Priority support - Advanced analytics Perfect for households, businesses, collectors, and anyone who wants to stay organized and reduce waste. Track food, medicines, cosmetics, supplies, collectibles, or any items that matter to you. Join thousands of users who have transformed their inventory management with UseFirst. Download now and take control of everything you own! LEGAL Privacy Policy: https://usefirst.app/privacy Terms of Use: https://usefirst.app/terms SUPPORT Email: contact@usefirst.app

About

ViviDiary

This AI-powered journaling app allows you to record your thoughts through natural conversations. It analyzes your emotions, generates unique artwork, and provides visual insights into your mental well-being.

Highlights
  • AI conversation-based journaling
  • Emotion analysis and visualization
  • Automatic illustration generation
  • Monthly emotion calendar
  • Home screen widgets
  • Unlimited diary entries
Features
Read full description

ViviDiary is a gentle mood journal that starts where journaling should: with how you feel. No blank page, no pressure. Just one tap to check in — and a soft, beautiful space to look back on your days. We rebuilt ViviDiary from the ground up. Here's what it's like now. YOUR DAILY CHECK-IN — 5 SECONDS, NOT 5 PARAGRAPHS Open the app and tap your mood: Great, Good, Okay, Low, or Rough. That's it — you've journaled today. Want to say more? Add as little or as much as you like: • Emotion & activity emojis — tag feelings, people, meals, work, sleep, exercise and more • A quick memo, a voice note, or a photo • An optional AI conversation: chat about your day, and ViviDiary writes a warm first-person diary draft for you to read, edit, and confirm. You always have the final say — nothing is saved without your review. TRACK ONLY WHAT MATTERS TO YOU Mood is the only thing you ever have to tap. Every other field — emojis, memo, voice, photo — is a toggle you turn on or off, so your check-in fits your life instead of forcing every box. A MONTHLY CALENDAR OF HOW YOU'VE FELT Home is a soft monthly mood calendar — a month of your feelings at a glance, in clay-emoji or watercolor view. Tap any day to revisit it, and let "On This Day" gently resurface memories from the past. ROUTINES + TODOS, WITHOUT THE GUILT The new Routines tab keeps gentle habits and daily to-dos in one calm place: • Routines — things you want to keep an eye on, like walking, reading, or drinking water • Todos — one-off things to handle today They check off on their own when you log a matching mood or emoji. A warm streak counter cheers your good runs and resets quietly if you miss a day — never a "streak lost!" alarm. ANALYTICS THAT ACTUALLY UNDERSTAND YOU Your patterns, in four simple lenses: • Trends — how your mood and activities shift over time • Routines — how well you kept each one • Impact — a ranked feed of what lifts you up and what brings you down • Recap — look-back discoveries and a "My Year" view Gentle insights surface the patterns you can't easily see yourself — and every one is tappable, so you can jump straight to the days behind it. A CLAY COMPANION THAT REFLECTS YOUR MOOD A soft clay character quietly mirrors how you've been feeling — a warm, living presence in your journal, not a chart and not auto-generated art. HOME SCREEN WIDGETS Seven home screen widgets: a one-tap mood check-in, this week's mood, today's routine and todo lists with in-widget check-off, a monthly routine grid, a monthly mood calendar, and a mood-over-time chart. Glance — or log — without ever opening the app. CONNECT TO APPLE HEALTH With your permission, ViviDiary reads your Steps and Sleep from Apple Health and fills them into your day automatically, so your records reflect your whole self. EIGHT LANGUAGES Fully available in English, Korean, Japanese, Simplified & Traditional Chinese, German, French, and Spanish — natural, native translations, not machine-direct. WHO IT'S FOR • Anyone who's wanted to journal but freezes at the blank page • People whose habits fall apart after a few days • Anyone who records their life but never finds time to reflect • Quietly emotional people who want to understand themselves a little better PRIVATE BY DESIGN — NEVER SOCIAL ViviDiary has no likes, no follows, and no feed. Your entries are securely stored and synced across your devices, fully searchable, never public, and never shared. Lock your journal behind Face ID, Touch ID, or your device passcode with App Lock (Premium). Delete your account and your data goes with it — completely. FREE & PREMIUM ViviDiary is free to use, with no banner ads. Premium unlocks every Analytics insight and time range (including the full year and year-over-year), unlimited Routines and Todos, and App Lock. Start tonight. Tap how you feel — and let the rest unfold. Terms of Use (EULA): https://vividiary.live/tos Privacy Policy: https://vividiary.live/privacy

Screenshots

UseFirst4 screens
ViviDiary4 screens

Verdict

The call

UseFirst and ViviDiary are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume 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. UseFirst sells 2 in-app purchases, starting at $2.99 per month and ViviDiary sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for UseFirst against 5.0 for ViviDiary. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

UseFirst ships an update every 5 days, ViviDiary weekly. The most recent releases landed on September 23, 2026 and October 8, 2026 respectively.

ScorecardNo meaningful differences
UseFirst versus ViviDiary: the parameters behind the verdict, then further details
ParameterUseFirstViviDiary
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 5 days — betterWeekly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.4 — better
Further details — not scored
Size22 MB127 MB
Age rating4+12+
DeveloperHaiming PengClayee Co., Ltd.

Customer experience

UseFirst

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ViviDiary

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

UseFirst

Subscriptions2
  • Premium Plan$2.991 Month
  • Pro Plan$9.991 Month
4 purchases

ViviDiary

Subscriptions4
  • Unlimited3 Days trial$2.991 Month
  • Unlimited3 Days trial$3.991 Month
  • Unlimited7 Days trial$11.991 Year
Show 1 more
  • Unlimited7 Days trial$29.991 Year

Questions

Is UseFirst free?
UseFirst is free to download, with in-app purchases available.
Is ViviDiary free?
ViviDiary is free to download, with in-app purchases available.
Which has better reviews, UseFirst or ViviDiary?
UseFirst and ViviDiary are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do UseFirst or ViviDiary have ads?
Both UseFirst and ViviDiary show ads.
Which is updated more often, UseFirst or ViviDiary?
UseFirst ships an update every 5 days, and ViviDiary weekly. Most recently, UseFirst was updated on September 23, 2026 and ViviDiary on October 8, 2026.

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