# Scale vs AI

The clearest difference is price: AI at Free against Scale's $4.99. AI also leads on rating (5.0 vs 4.2) and device support (3 vs 1). Scale's advantage is ads (none vs shown) and update cadence (every 8 days vs every 5 months). On ratings volume and in-app purchases there is nothing between them.

AI is free to download; Scale costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AI holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 6 respectively.

Scale ships an update every 8 days, AI every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Scale | AI |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/scale-o-tron/id1441824327/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ai-dea-ai-idea-concretization/id6446606152/reviews)** |
| Number of ratings | 5 | **6** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 5 months |
| Monetization | Paid | **Ad-supported** |
| Size | 3 MB | 74 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Mizmovac, Inc](https://appshunter.io/developer/1441824326) | [yu nakamura](https://appshunter.io/developer/1079316668) |

## What reviewers say

### Scale

[App page](https://appshunter.io/ios/app/scale-o-tron/id1441824327)

This tool simplifies scaling and unit conversions for creators. It offers a vast library of scales and units, allowing for seamless adjustments and precise calculations. Customize the interface to match your workflow and focus on your projects.

**Highlights:** Extensive database of scales and units, Customizable scales and units, Imperial and metric conversions, Fractional and decimal rounding, Conversion history, Customizable buttons

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

**In-app purchases:** none


### AI

[App page](https://appshunter.io/ios/app/ai-dea-ai-idea-concretization/id6446606152)

This app leverages AI to transform simple memos into detailed, actionable ideas. It helps users expand creativity and explore new perspectives, ideal for those who need help concretizing or refining initial concepts.

**Highlights:** Quick memo function, AI-generated idea provision, Detailed idea expansion, Multiple idea perspectives, Idea saving and management

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

**In-app purchases:** none


## Frequently asked questions

### Is Scale free?

Scale costs $4.99, with no in-app purchases.

### Is AI free?

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

### Which has better reviews, Scale or AI?

AI is rated higher. Scale averages 4.2 out of 5 from 5 ratings, while AI averages 5.0 from 6 ratings.

### Do Scale or AI have ads?

AI shows ads; Scale does not.

### Which is updated more often, Scale or AI?

Scale ships an update every 8 days, and AI every 5 months. Most recently, Scale was updated on November 2, 2026 and AI on November 3, 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.*