# iGanttChart vs Building Tools

The clearest difference is rating: iGanttChart at 4.0 against Building Tools's 1.0. iGanttChart also leads on monetization model (freemium vs subscription) and ratings volume (23 vs 2). Building Tools's advantage is review sentiment (100% vs 60%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. iGanttChart sells 2 in-app purchases, starting at $2.99 per month and Building Tools sells 4 in-app purchases, starting at $16.49 per month. Whichever you choose, the download price is not the number that matters.

iGanttChart holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: iGanttChart has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 60% of iGanttChart's written reviews are positive against 100% of Building Tools's, so the app with the better star average is not the one people write more warmly about.

iGanttChart ships an update every 2 weeks, Building Tools fortnightly. The most recent releases landed on September 22, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | iGanttChart | Building Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (23 ratings)](https://appshunter.io/ios/app/iganttchart-gantt-chart-app/id1665357828/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/building-tools/id6444877751/reviews) |
| Number of ratings | **23** | 2 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | **Freemium** | Subscription |
| Size | 51 MB | 35 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUKI TANAIKE](https://appshunter.io/developer/478558546) | [Survival Tools Pty Ltd](https://appshunter.io/developer/1657586757) |

## What reviewers say

### iGanttChart

[App page](https://appshunter.io/ios/app/iganttchart-gantt-chart-app/id1665357828)

Create and manage project timelines with ease using this intuitive mobile application. Visualize tasks, track progress, and assign responsibilities with customizable options. Seamlessly sync across devices and share your project plans.

**Highlights:** Intuitive usability, Task progress tracking, Customizable task colors, Link insertion for references, Task priority management, Assignees for task responsibility, Multi-device sync via Google Drive, Export and share Gantt charts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iGanttChart Pro Version Monthly | $2.99 | per month |
| iGanttChart Pro Version Annual | $27.00 | per year |


### Building Tools

[App page](https://appshunter.io/ios/app/building-tools/id6444877751)

This application simplifies complex National Construction Codes into interactive graphics, aiming to reduce errors and boost productivity. It provides an accessible way to understand building regulations.

**Highlights:** Interactive graphics for NCC, Maximizes efficiency, Prevents costly mistakes, Easy-to-understand regulations

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month BDAA | $16.49 | per month |
| 1 Month Foundation Member | $19.49 | per month |
| 1 Year BDAA | $154.99 | per year |
| 1 Year Foundation Member | $189.99 | per year |


## Frequently asked questions

### Is iGanttChart free?

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

### Is Building Tools free?

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

### Which has better reviews, iGanttChart or Building Tools?

iGanttChart is rated higher. iGanttChart averages 4.0 out of 5 from 23 ratings, while Building Tools averages 1.0 from 2 ratings.

### Do iGanttChart or Building Tools have ads?

Neither iGanttChart nor Building Tools shows ads.

### Which is updated more often, iGanttChart or Building Tools?

iGanttChart ships an update every 2 weeks, and Building Tools fortnightly. Most recently, iGanttChart was updated on September 22, 2026 and Building Tools on August 14, 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.*