# LifeMark vs Useday

The clearest difference is price: LifeMark at Free against Useday's $0.99. Useday's advantage is in-app purchases (none vs 4) and iOS requirement (15.0 vs 17.0). On rating, ratings volume, update cadence and ads there is nothing between them.

LifeMark is free to download; Useday costs $0.99 up front. LifeMark sells 4 in-app purchases, starting at $0.99 per month. Useday asks for nothing beyond the download.

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

LifeMark ships an update every 2 weeks, Useday every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | LifeMark | Useday |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/lifemark/id6745689205/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/useday/id6785444400/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | **Freemium** | Paid |
| Size | 68 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [延德 聂](https://appshunter.io/developer/1363152301) | [华周 韦](https://appshunter.io/developer/6782736887) |

## What reviewers say

### LifeMark

[App page](https://appshunter.io/ios/app/lifemark/id6745689205)

This app helps you meticulously record and cherish every moment of your family's life. It offers personalized tracking for each member, from babies to pets, creating a comprehensive family history. Visualize your data and foster healthy habits with its unique reward system.

**Highlights:** Role-based family member profiles, Detailed tracking modules for all ages and pets, Growth and health monitoring, Habit formation and goal setting, Data visualization and reports, Reward and incentive system, Cross-platform synchronization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 顾家会员每月版 | $0.99 | per month |
| 顾家会员 | $2.99 | per year |
| 优惠专业版 | $1.99 | one-time |
| 专业版 | $2.99 | one-time |


### Useday

[App page](https://appshunter.io/ios/app/useday/id6785444400)

Easily track the usage frequency of your everyday items without complex data entry. Simply tap items you've used today to monitor their activity and discover your most and least utilized possessions. Organize, archive, and sync your data seamlessly.

**Highlights:** Track daily item usage, View recent usage, Discover most used items, Identify unused items, Organize items by group, Sync data via iCloud

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LifeMark free?

LifeMark is free to download, with in-app purchases available.

### Is Useday free?

Useday costs $0.99, with no in-app purchases.

### Which has better reviews, LifeMark or Useday?

LifeMark and Useday are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do LifeMark or Useday have ads?

Neither LifeMark nor Useday shows ads.

### Which is updated more often, LifeMark or Useday?

LifeMark ships an update every 2 weeks, and Useday every 9 days. Most recently, LifeMark was updated on October 24, 2026 and Useday on October 24, 2026.

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