# ClevCalc vs Chatterswift

The clearest difference is in-app purchases: Chatterswift at none against ClevCalc's 3. Chatterswift also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ClevCalc sells 3 in-app purchases, starting at $2.99 per month. Chatterswift asks for nothing beyond the download.

ClevCalc ships an update monthly, Chatterswift every 3 weeks. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | ClevCalc | Chatterswift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (14K ratings)](https://appshunter.io/ios/app/clevcalc-calculator/id1221235593/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 22 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cleveni Inc.](https://appshunter.io/developer/1221235592) | [Kritrima Prajna Innovations Pvt Ltd](https://appshunter.io/developer/1718083247) |

## What reviewers say

### ClevCalc

[App page](https://appshunter.io/ios/app/clevcalc-calculator/id1221235593)

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

**Highlights:** Scientific calculator, Unit converter, Currency converter, Loan calculator, Health calculator (BMI, BMR), Date calculator, GPA calculator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $2.99 | per month |
| Premium Subscription | $24.99 | per year |
| Premium version | $13.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Versatile features (currency, unit conversions, etc.)
- 👍 Intuitive interface
- 👍 Helpful for daily tasks

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🔍 Ads can be intrusive
- 🐛 Occasional UI issues (e.g. ads blocking functionality)
- 🔍 Lack of advanced features (e.g. RPN mode, binary calculator)

**Reported bugs**

- Keystrokes not always registering
- Compatibility issues with older devices

**Requested features**

- Dark mode option
- Ability to save/recall calculations
- More customization options
- Integration with other apps/platforms


### Chatterswift

[App page](https://appshunter.io/ios/app/chatterswift/id6746920106)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClevCalc free?

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

### Is Chatterswift free?

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

### Do ClevCalc or Chatterswift have ads?

ClevCalc shows ads; Chatterswift does not.

### Which is updated more often, ClevCalc or Chatterswift?

ClevCalc ships an update monthly, and Chatterswift every 3 weeks. Most recently, ClevCalc was updated on October 26, 2026 and Chatterswift on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*