# Easy Input Calculator vs Deep ChatAI

The clearest difference is review sentiment: Easy Input Calculator at 100% against Deep ChatAI's 0%. Easy Input Calculator also leads on in-app purchases (none vs 3). Deep ChatAI's advantage is price (Free vs $0.99) and update cadence (every 3 weeks vs every 4 months). On ads and device support there is nothing between them.

Deep ChatAI is free to download; Easy Input Calculator costs $0.99 up front. Deep ChatAI sells 3 in-app purchases, starting at $3.99 per 7 days. Easy Input Calculator asks for nothing beyond the download.

Easy Input Calculator ships an update every 4 months, Deep ChatAI every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Easy Input Calculator | Deep ChatAI |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.2 (38 ratings)](https://appshunter.io/ios/app/deep-chatai-ai-assistant/id1658778866/reviews)** |
| Number of ratings | — | **38** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Paid** | Subscription |
| Size | 3 MB | 19 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Yuta Kobayashi](https://appshunter.io/developer/1169055350) | [VISUAL](https://appshunter.io/developer/1658006760) |

## What reviewers say

### Easy Input Calculator

[App page](https://appshunter.io/ios/app/easy-input-calculator/id1169055351)

This calculator app features a simple, user-friendly design with large buttons and characters for easy visibility. It includes special buttons for quickly inputting billions, millions, and thousands, streamlining complex calculations. The app is available in over 60 languages and allows users to copy results to the clipboard.

**Highlights:** Large, easy-to-see buttons, Large characters for high visibility, Billion, Million, Thousand input buttons, Copy calculation results to clipboard, Supports over 60 languages, Basic calculator functions

**Features:** Vision Pro support

**In-app purchases:** none


### Deep ChatAI

[App page](https://appshunter.io/ios/app/deep-chatai-ai-assistant/id1658778866)

Engage in intelligent conversations with an AI assistant that can help solve problems, offer solutions, and teach you new things. Communicate via voice or text in multiple languages.

**Highlights:** Interactive AI conversations, Problem-solving assistance, Multilingual support, Voice and text input, Continuous learning

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chat AI | $3.99 | per 7 days |
| AI Quarterly Premium | $14.99 | per 3 months |
| Chat AI Buyout | $29.99 | one-time |


## Frequently asked questions

### Is Easy Input Calculator free?

Easy Input Calculator costs $0.99, with no in-app purchases.

### Is Deep ChatAI free?

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

### Do Easy Input Calculator or Deep ChatAI have ads?

Neither Easy Input Calculator nor Deep ChatAI shows ads.

### Which is updated more often, Easy Input Calculator or Deep ChatAI?

Easy Input Calculator ships an update every 4 months, and Deep ChatAI every 3 weeks. Most recently, Easy Input Calculator was updated on October 29, 2026 and Deep ChatAI on October 24, 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.*