# BuilderCalc vs StudPlan

The clearest difference is update cadence: BuilderCalc at every 4 days against StudPlan's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BuilderCalc sells 3 in-app purchases, starting at $3.99 per month and StudPlan sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

BuilderCalc ships an update every 4 days, StudPlan every 2 weeks. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BuilderCalc | StudPlan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 1 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Double Vision USA LLC](https://appshunter.io/developer/1894678139) | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) |

## What reviewers say

### BuilderCalc

[App page](https://appshunter.io/ios/app/buildercalc-deck-framing/id6763315412)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Unlock | $74.99 | one-time |


### StudPlan

[App page](https://appshunter.io/ios/app/studplan-wall-framing-layout/id6769339554)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is BuilderCalc free?

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

### Is StudPlan free?

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

### Do BuilderCalc or StudPlan have ads?

Neither BuilderCalc nor StudPlan shows ads.

### Which is updated more often, BuilderCalc or StudPlan?

BuilderCalc ships an update every 4 days, and StudPlan every 2 weeks. Most recently, BuilderCalc was updated on October 5, 2026 and StudPlan on October 4, 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.*