# CalcTri V1 vs Layout Calc Pro

The clearest difference is in-app purchases: CalcTri V1 at none against Layout Calc Pro's 7. Layout Calc Pro's advantage is ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price there is nothing between them.

Both are free to download. Layout Calc Pro sells 7 one-off in-app purchases. CalcTri V1 asks for nothing beyond the download.

CalcTri V1 ships an update every 3 weeks, Layout Calc Pro weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CalcTri V1 | Layout Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 40 MB | 71 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOGUCHI, CO., LTD.](https://appshunter.io/developer/668415384) | [思源 李](https://appshunter.io/developer/1704804704) |

## What reviewers say

### CalcTri V1

[App page](https://appshunter.io/ios/app/calctri-v1/id1606476734)

This utility app offers a calculator, right triangle calculations, and pipe centering. It mimics desktop calculator operation and allows copying from history. Supports angle input in degrees and minutes for precise calculations.

**Highlights:** Basic calculator function, Right triangle calculations, Pipe centering calculations, Angle input in degrees and minutes, Copy calculation history

**Features:** Vision Pro support

**In-app purchases:** none


### Layout Calc Pro

[App page](https://appshunter.io/ios/app/layout-calc-pro/id6476074424)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Day VIP | $5.00 | one-time |
| 1-Year VIP Membership | $19.99 | one-time |
| 2-Year VIP Membership | $34.99 | one-time |
| 3-Year VIP Membership | $44.99 | one-time |
| 1-Year VIP Membership | $55.00 | one-time |
| 2-Year VIP Membership | $104.99 | one-time |
| 3-Year VIP Membership | $154.99 | one-time |


## Frequently asked questions

### Is CalcTri V1 free?

CalcTri V1 is free to download, with no in-app purchases.

### Is Layout Calc Pro free?

Layout Calc Pro is free to download, with in-app purchases available.

### Do CalcTri V1 or Layout Calc Pro have ads?

CalcTri V1 shows ads; Layout Calc Pro does not.

### Which is updated more often, CalcTri V1 or Layout Calc Pro?

CalcTri V1 ships an update every 3 weeks, and Layout Calc Pro weekly. Most recently, CalcTri V1 was updated on October 24, 2026 and Layout Calc Pro on October 25, 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.*