# ClevCalc vs Image PDF Maker

The clearest difference is price: ClevCalc at Free against Image PDF Maker's $2.99. ClevCalc also leads on update cadence (monthly vs every 19 months). Image PDF Maker's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

ClevCalc is free to download; Image PDF Maker costs $2.99 up front. ClevCalc sells 2 in-app purchases, starting at $2.99 per month. Image PDF Maker asks for nothing beyond the download.

ClevCalc ships an update monthly, Image PDF Maker every 19 months. The most recent releases landed on November 13, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | ClevCalc | Image PDF Maker |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (14K ratings)](https://appshunter.io/ios/app/clevcalc-calculator/id1221235593/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | 91.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 1 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cleveni Inc.](https://appshunter.io/developer/1221235592) | [永文 胡](https://appshunter.io/developer/804677583) |

## 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $2.99 | per month |
| Premium Subscription | $24.99 | per year |

**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


### Image PDF Maker

[App page](https://appshunter.io/ios/app/image-pdf-maker-image-to-pdf/id1625299399)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ClevCalc free?

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

### Is Image PDF Maker free?

Image PDF Maker costs $2.99, with no in-app purchases.

### Do ClevCalc or Image PDF Maker have ads?

ClevCalc shows ads; Image PDF Maker does not.

### Which is updated more often, ClevCalc or Image PDF Maker?

ClevCalc ships an update monthly, and Image PDF Maker every 19 months. Most recently, ClevCalc was updated on November 13, 2026 and Image PDF Maker on November 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.*