# LumberFit vs KinTime

The clearest difference is monetization model: KinTime at free against LumberFit's free with in-app purchases. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. LumberFit sells 1 in-app purchase, starting at $1.99 per month and KinTime sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

LumberFit ships an update every 3 weeks, KinTime every 6 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | LumberFit | KinTime |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 3 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [剑炜 陈](https://appshunter.io/developer/1868267178) | [宇 周](https://appshunter.io/developer/1896436135) |

## What reviewers say

### LumberFit

[App page](https://appshunter.io/ios/app/lumberfit/id6757940921)

Optimize wood cutting and plan transport for woodworking projects. Features include board cutting layout, 3D load visualization, and AR camera measurement. Export professional PDFs and share results.

**Highlights:** Board cutting optimization, 3D load visualization, AR camera measurement, PDF export and sharing, Material cost estimation, Multiple unit support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LumberFit 1 Month VIP | $1.99 | per month |


### KinTime

[App page](https://appshunter.io/ios/app/kintime/id6762042823)

This app accurately tracks the precise age of family members, down to the second. It offers secure local storage for privacy and a minimalist design for ease of use. Manage multiple family members and cherish every moment spent together.

**Highlights:** Precise age tracking to the second, Family member management, Minimalist and intuitive UI, Secure local data storage, Calculates years, months, days, hours, minutes, seconds

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Member Limit | $0.99 | one-time |


## Frequently asked questions

### Is LumberFit free?

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

### Is KinTime free?

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

### Do LumberFit or KinTime have ads?

Neither LumberFit nor KinTime shows ads.

### Which is updated more often, LumberFit or KinTime?

LumberFit ships an update every 3 weeks, and KinTime every 6 weeks. Most recently, LumberFit was updated on November 5, 2026 and KinTime on November 5, 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.*