# Adding Machine 10Key iPhone vs Voice Calculator

The clearest difference is price: Voice Calculator at Free against Adding Machine 10Key iPhone's $2.99. Voice Calculator also leads on ratings volume (1.3K vs 130). Adding Machine 10Key iPhone's advantage is in-app purchases (none vs 3) and ads (none vs shown). On rating, update cadence and device support there is nothing between them.

Voice Calculator is free to download; Adding Machine 10Key iPhone costs $2.99 up front. Voice Calculator sells 3 one-off in-app purchases. Adding Machine 10Key iPhone asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Adding Machine 10Key iPhone against 4.5 for Voice Calculator. That said, the two scores are not equally well evidenced: Voice Calculator has 1.3K ratings behind it against 130, so its average is the more settled of the two. Written reviews are what separate them: 95% of Adding Machine 10Key iPhone's written reviews are positive against 73% of Voice Calculator's.

Adding Machine 10Key iPhone ships an update every 5 weeks, Voice Calculator every 6 weeks. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Adding Machine 10Key iPhone | Voice Calculator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.6 (130 ratings)](https://appshunter.io/ios/app/adding-machine-10key-iphone/id392883834/reviews)** | [4.5 (1.3K ratings)](https://appshunter.io/ios/app/voice-calculator-human-speak/id1299622541/reviews) |
| Number of ratings | 130 | **1.3K** |
| Positive reviews | **95.2% of reviews** | 72.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#73** | — |
| Size | 10 MB | 45 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Silverman](https://appshunter.io/developer/297096643) | [俐 马](https://appshunter.io/developer/1896144174) |

## What reviewers say

### Adding Machine 10Key iPhone

[App page](https://appshunter.io/ios/app/adding-machine-10key-iphone/id392883834)

**Currently charting:** #73 Top Paid · Finance (US App Store)

This app emulates a traditional 10-key adding machine, offering reversed operator entry and percentage calculation. Users can edit and save paper tapes, export them to various services, and customize keypad sounds. It's designed for accurate and efficient numerical input.

**Highlights:** True 10-key adding machine emulation, Reversed operator entry, Percentage calculation, Editable paper tape history, Save and retrieve paper tape files, Export paper tape to iBooks, Dropbox, or printing utilities

**In-app purchases:** none

**What reviewers like**

- 👍 Works like a real adding machine
- 👍 Tape feature is excellent
- 👍 Easy to use and user-friendly
- 👍 Good for complex calculations
- 👍 Allows editing of numbers

**What reviewers complain about**

- 🐛 Watermarks premium exports
- 🐛 Haphazardly laid out controls
- 🐛 Touchy sound toggle in free version
- 🐛 Keypad glitch on re-opening
- 🐛 Nagging review requests

**Reported bugs**

- Watermarks premium PDF exports
- Haphazardly laid out controls
- Touchy sound toggle in free version
- Keypad glitch on re-opening
- Nagging review requests (Don't ask again button not working)

**Requested features**

- Eliminate tape for bigger total screen
- Add square root feature
- Bring back custom keypad feature on iPhone version
- Allow more than 350 lines
- Allow more notations on tape


### Voice Calculator

[App page](https://appshunter.io/ios/app/voice-calculator-human-speak/id1299622541)

Perform calculations using your voice and hear results spoken aloud. This app automatically records your calculation history and allows for easy financial bookkeeping with notes and segments. It offers customizable voice tones and themes, optimized for iPad.

**Highlights:** Voice input for calculations, Spoken button numbers and results, Automatic calculation history recording, Insert notes and segments for bookkeeping, Arithmetic priority determination, Customizable voice tones and themes, iPad optimized HD calculator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| All Skins | $0.99 | one-time |
| Pro Version | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🔊 Helpful voice feedback
- 💡 Convenient history tracking
- 🎨 Clear and intuitive interface
- 🧮 Accurate calculations

**What reviewers complain about**

- 🐛 Voice recognition issues
- 🔇 Lack of voice command support
- 📺 Excessive ads
- 🔤 Missing features (e.g., fractions, scientific functions)

**Reported bugs**

- Discrepancy between voice output and calculation results
- Unresponsive when entering numbers quickly
- Crashes or freezes on some devices

**Requested features**

- Add voice command support
- Improve voice recognition accuracy
- Provide option to remove ads
- Implement more advanced calculator functions
- Allow customization of text size and layout


## Frequently asked questions

### Is Adding Machine 10Key iPhone free?

Adding Machine 10Key iPhone costs $2.99, with no in-app purchases.

### Is Voice Calculator free?

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

### Which has better reviews, Adding Machine 10Key iPhone or Voice Calculator?

Adding Machine 10Key iPhone is rated higher. Adding Machine 10Key iPhone averages 4.6 out of 5 from 130 ratings, while Voice Calculator averages 4.5 from 1.3K ratings.

### Do Adding Machine 10Key iPhone or Voice Calculator have ads?

Voice Calculator shows ads; Adding Machine 10Key iPhone does not.

### Which is updated more often, Adding Machine 10Key iPhone or Voice Calculator?

Adding Machine 10Key iPhone ships an update every 5 weeks, and Voice Calculator every 6 weeks. Most recently, Adding Machine 10Key iPhone was updated on September 26, 2026 and Voice Calculator on September 25, 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.*