# RainbowCalc vs AI NoteBook & Memos

The clearest difference is rating: AI NoteBook & Memos at 5.0 against RainbowCalc's 3.5. AI NoteBook & Memos also leads on iOS requirement (13.4 vs 15.1). RainbowCalc's advantage is in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. AI NoteBook & Memos sells 2 in-app purchases, starting at $5.99 per 7 days. RainbowCalc asks for nothing beyond the download.

AI NoteBook & Memos holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

RainbowCalc ships an update fortnightly, AI NoteBook & Memos weekly. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | RainbowCalc | AI NoteBook & Memos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/rainbowcalc/id6479331134/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai-notebook-and-memos-tryty/id6670345451/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 34 MB | 73 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Silva](https://appshunter.io/developer/1719182490) | [Hamed Salawu](https://appshunter.io/developer/1796154058) |

## What reviewers say

### RainbowCalc

[App page](https://appshunter.io/ios/app/rainbowcalc/id6479331134)

This calculator app offers extensive customization with a wide color picker for backgrounds and keys, enhancing usability and accessibility. It includes a calculation history with sharing options and supports basic arithmetic, percentages, and square roots.

**Highlights:** Customizable background and key colors, Advanced color picker, Calculation history, Share calculations, Basic operations, Percentage calculations, Square root calculations

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

**In-app purchases:** none


### AI NoteBook & Memos

[App page](https://appshunter.io/ios/app/ai-notebook-and-memos-tryty/id6670345451)

Capture text from various sources, including files, images, and web content. Enhance your notes with AI-powered text modification and data extraction tools. This app offers a smarter way to organize and utilize your information.

**Highlights:** Text capture from multiple sources, AI-powered text modification, Effortless data extraction, Text counting tool, Note organization

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $5.99 | per 7 days |
| Monthly Premium | $19.99 | per month |


## Frequently asked questions

### Is RainbowCalc free?

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

### Is AI NoteBook & Memos free?

AI NoteBook & Memos is free to download, with in-app purchases available.

### Which has better reviews, RainbowCalc or AI NoteBook & Memos?

AI NoteBook & Memos is rated higher. RainbowCalc averages 3.5 out of 5 from 2 ratings, while AI NoteBook & Memos averages 5.0 from 1 ratings.

### Do RainbowCalc or AI NoteBook & Memos have ads?

Both RainbowCalc and AI NoteBook & Memos show ads.

### Which is updated more often, RainbowCalc or AI NoteBook & Memos?

RainbowCalc ships an update fortnightly, and AI NoteBook & Memos weekly. Most recently, RainbowCalc was updated on November 8, 2026 and AI NoteBook & Memos on November 4, 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.*