# Concepts vs LineForge

The clearest difference is chart position: Concepts at #158 against LineForge's unranked. Concepts also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Concepts sells 10 in-app purchases, starting at $4.99 per month and LineForge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Concepts | LineForge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (27K ratings)](https://appshunter.io/ios/app/concepts/id560586497/reviews)** | — |
| Number of ratings | **27K** | — |
| Positive reviews | 76.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#158** | — |
| Size | 268 MB | 2 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TopHatch, Inc.](https://appshunter.io/developer/560586500) | [Shenzhen Liubai Software Co., Ltd](https://appshunter.io/developer/1861301699) |

## What reviewers say

### Concepts

[App page](https://appshunter.io/ios/app/concepts/id560586497)

**Currently charting:** #158 Top Free · Graphics & Design (US App Store)

This flexible vector-based sketchbook offers an infinite canvas for ideation and design. Easily sketch, take notes, and create detailed designs with editable strokes and powerful tools. Share your work in various formats for seamless collaboration and professional output.

**Highlights:** Infinite canvas, Vector-based sketching, Realistic pens, pencils, and brushes, Editable vector elements, Unlimited layers, Scale and measurement tools, Object libraries

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Everything Monthly | $4.99 | per month |
| Everything Monthly + Trial | $4.99 | per month |
| Everything Yearly | $29.99 | per year |
| Everything Yearly + Trial | $29.99 | per year |
| Shape Library | $1.99 | one-time |
| Pen Brush Pack | $1.99 | one-time |
| Make Your Own Objects | $3.99 | one-time |
| Essentials (iPhone Only) | $4.99 | one-time |
| PDF Essentials | $4.99 | one-time |
| Essentials | $39.99 | one-time |

**What reviewers like**

- 🚀 Infinite canvas
- 👍 Intuitive and customizable interface
- 🎨 Powerful drawing and sketching tools
- 💡 Versatile for various use cases (architecture, design, note-taking)
- 🔒 Responsive customer support

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔍 Steep learning curve for some users
- 💰 Subscription model can be expensive for casual users
- 🔧 Limited text handling and editing capabilities
- 🔀 Inconsistent behavior of certain tools (e.g., eraser, alignment)

**Reported bugs**

- Memory issues when working with large, complex drawings
- Inconsistent behavior of the eraser tool
- Inaccuracies in the snap-to-grid and measurement tools
- Exporting issues, such as loss of data or poor quality

**Requested features**

- Improved text editing and formatting options
- Better color selection and customization tools
- Collaboration and real-time sharing features
- Seamless integration with other design/productivity apps
- Syncing and backup capabilities across devices


### LineForge

[App page](https://appshunter.io/ios/app/lineforge-vector-svg/id6776683710)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $9.99 | one-time |


## Frequently asked questions

### Is Concepts free?

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

### Is LineForge free?

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

### Do Concepts or LineForge have ads?

Neither Concepts nor LineForge shows ads.

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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.*