# INTR vs Projection Mapping Toolbox

The clearest difference is update cadence: Projection Mapping Toolbox at every 3 weeks against INTR's every 15 months. Projection Mapping Toolbox also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

INTR ships an update every 15 months, Projection Mapping Toolbox every 3 weeks. The most recent releases landed on September 7, 2026 and July 17, 2026 respectively.

## The numbers

| Metric | INTR | Projection Mapping Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/projection-mapping-toolbox/id6756530799/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 1 MB | 5 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Norse Ventures LLC](https://appshunter.io/developer/1021405857) | [Joseph Shea](https://appshunter.io/developer/1861206191) |

## What reviewers say

### INTR

[App page](https://appshunter.io/ios/app/intr-i-need-to-remember/id6443640124)

**Features:** macOS Compatibility

**In-app purchases:** none


### Projection Mapping Toolbox

[App page](https://appshunter.io/ios/app/projection-mapping-toolbox/id6756530799)

This utility app assists projection mapping, AV, and live production professionals with on-site calculations. It offers tools for projector placement, throw distance, surface dimensions, and multi-projector layouts, streamlining workflows for technicians and designers.

**Highlights:** Throw Distance Calculator, Multi-Projector Layouts, Surface Dimension Tool, Aspect Ratio Estimator, CAD PDF Import, Projector Inventory

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is INTR free?

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

### Is Projection Mapping Toolbox free?

Projection Mapping Toolbox is free to download, with no in-app purchases.

### Do INTR or Projection Mapping Toolbox have ads?

Neither INTR nor Projection Mapping Toolbox shows ads.

### Which is updated more often, INTR or Projection Mapping Toolbox?

INTR ships an update every 15 months, and Projection Mapping Toolbox every 3 weeks. Most recently, INTR was updated on September 7, 2026 and Projection Mapping Toolbox on July 17, 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.*