# UseFirst vs ViviDiary

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.

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.

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.

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

## The numbers

| Metric | UseFirst | ViviDiary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/usefirst/id6752753308/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/vividiary-mood-diary/id6752819012/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 22 MB | 127 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Haiming Peng](https://appshunter.io/developer/1840801019) | [Clayee Co., Ltd.](https://appshunter.io/developer/1853744439) |

## What reviewers say

### UseFirst

[App page](https://appshunter.io/ios/app/usefirst/id6752753308)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $2.99 | per month |
| Pro Plan | $9.99 | per month |


### ViviDiary

[App page](https://appshunter.io/ios/app/vividiary-mood-diary/id6752819012)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $2.99 | per month |
| Unlimited | $3.99 | per month |
| Unlimited | $11.99 | per year |
| Unlimited | $29.99 | per year |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*