# Angle & Ratio vs KnowledgeBase Builder

The clearest difference is review sentiment: KnowledgeBase Builder at 91% against Angle & Ratio's 50%. KnowledgeBase Builder also leads on update cadence (fortnightly vs every 6 months) and ratings volume (24 vs 1). Angle & Ratio's advantage is price ($0.99 vs $8.99) and rating (5.0 vs 4.7). On ads, in-app purchases, monetization model and device support there is nothing between them.

Angle & Ratio costs $0.99 and KnowledgeBase Builder $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Angle & Ratio holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: KnowledgeBase Builder has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Angle & Ratio's written reviews are positive against 91% of KnowledgeBase Builder's, so the app with the better star average is not the one people write more warmly about.

Angle & Ratio ships an update every 6 months, KnowledgeBase Builder fortnightly. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Angle & Ratio | KnowledgeBase Builder |
| --- | --- | --- |
| Price | **$0.99** | $8.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/angle-and-ratio/id928803288/reviews)** | [4.7 (24 ratings)](https://appshunter.io/ios/app/knowledgebase-builder/id1448579863/reviews) |
| Number of ratings | 1 | **24** |
| Positive reviews | 50.0% of reviews | **90.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 2 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Medic Engineering K.K.](https://appshunter.io/developer/917118875) | [Ingo Straub](https://appshunter.io/developer/1398145160) |

## What reviewers say

### Angle & Ratio

[App page](https://appshunter.io/ios/app/angle-and-ratio/id928803288)

Measure angles and ratios directly from images. Adjust segments on your photos to analyze proportions and inclinations, then save your results as JPEGs.

**Highlights:** Measure angles from images, Measure ratios from images, Adjustable segments for precise measurement, Save results as JPEG, Use photos from gallery or take new ones

**In-app purchases:** none


### KnowledgeBase Builder

[App page](https://appshunter.io/ios/app/knowledgebase-builder/id1448579863)

Organize and search text documents and web pages with links within a mind map structure. Automatically create mind maps from text, import Wikipedia articles, and export your knowledge base as HTML. Also functions as a flowcharting tool.

**Highlights:** Save text documents and web pages, Full-text search, Organize with mind maps, Automatic mind map creation, Wikipedia import, Export to HTML, Flowcharting tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Angle & Ratio free?

Angle & Ratio costs $0.99, with no in-app purchases.

### Is KnowledgeBase Builder free?

KnowledgeBase Builder costs $8.99, with no in-app purchases.

### Which has better reviews, Angle & Ratio or KnowledgeBase Builder?

Angle & Ratio is rated higher. Angle & Ratio averages 5.0 out of 5 from 1 ratings, while KnowledgeBase Builder averages 4.7 from 24 ratings.

### Do Angle & Ratio or KnowledgeBase Builder have ads?

Neither Angle & Ratio nor KnowledgeBase Builder shows ads.

### Which is updated more often, Angle & Ratio or KnowledgeBase Builder?

Angle & Ratio ships an update every 6 months, and KnowledgeBase Builder fortnightly. Most recently, Angle & Ratio was updated on September 22, 2026 and KnowledgeBase Builder on September 7, 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.*