# Adding Machine 10Key Univ Lite vs Rapid & Quick Calculator

The clearest difference is rating: Rapid & Quick Calculator at 4.8 against Adding Machine 10Key Univ Lite's 4.3. Rapid & Quick Calculator also leads on ratings volume (1.5K vs 192) and review sentiment (91% vs 80%). Adding Machine 10Key Univ Lite's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 5 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rapid & Quick Calculator holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Rapid & Quick Calculator has 1.5K ratings behind it against 192, so its average is the more settled of the two. Written reviews point the same way: 80% of Adding Machine 10Key Univ Lite's written reviews are positive against 91% of Rapid & Quick Calculator's.

Adding Machine 10Key Univ Lite ships an update every 6 weeks, Rapid & Quick Calculator every 5 months. The most recent releases landed on August 26, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Adding Machine 10Key Univ Lite | Rapid & Quick Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (192 ratings)](https://appshunter.io/ios/app/adding-machine-10key-univ-lite/id579393645/reviews) | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532/reviews)** |
| Number of ratings | 192 | **1.5K** |
| Positive reviews | 79.6% of reviews | **90.5% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | **Free** | Ad-supported |
| Size | 23 MB | 7 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Richard Silverman](https://appshunter.io/developer/297096643) | [KinkumaDesign](https://appshunter.io/developer/385697725) |

## What reviewers say

### Adding Machine 10Key Univ Lite

[App page](https://appshunter.io/ios/app/adding-machine-10key-univ-lite/id579393645)

This app emulates a traditional 10-key adding machine for precise calculations. It offers features like reversed operator entry, percentage calculation, and the ability to edit and save paper tape files. The iPad version includes a full-size keypad with audio feedback for enhanced accuracy.

**Highlights:** 10-key adding machine emulation, Reversed operator entry, Percentage calculation, Paper tape editing and saving, Export paper tape files, TypeTone audio feedback (iPad)

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Works like a real adding machine
- 👍 Tape feature is useful
- 👍 Large, clear numbers
- 👍 Good for bookkeeping

**What reviewers complain about**

- 💸 Paid version is expensive
- 📉 Ads take up screen space on iPhone
- 🤏 Keys are too small on lite version
- 🗄️ Lite version has limited lines
- 💡 Trailing zeros not displayed

**Reported bugs**

- 3 digits get frozen during calculations
- Crashed and lost data
- The "don't ask again" button for reviews does nothing
- App freezes when switching apps

**Requested features**

- Ability to set automatic cents
- Two sales tax rates or ability to deselect items from tax
- More lines in the free version
- More screen space on iPhone
- Ability to add more before clearing


### Rapid & Quick Calculator

[App page](https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532)

A user-friendly calculator with essential functions and advanced features like tax and discount calculations. Easily reuse past calculations or edit expressions with intuitive controls. Offers customization options for themes and fonts.

**Highlights:** History Tape for reusing answers, Sales tax calculations, Discount calculations, Precise rounding settings, Customizable themes and fonts, Editable expressions with cursor keys, Share expressions and answers

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Adding Machine 10Key Univ Lite free?

Adding Machine 10Key Univ Lite is free to download, with no in-app purchases.

### Is Rapid & Quick Calculator free?

Rapid & Quick Calculator is free to download, with no in-app purchases.

### Which has better reviews, Adding Machine 10Key Univ Lite or Rapid & Quick Calculator?

Rapid & Quick Calculator is rated higher. Adding Machine 10Key Univ Lite averages 4.3 out of 5 from 192 ratings, while Rapid & Quick Calculator averages 4.8 from 1.5K ratings.

### Do Adding Machine 10Key Univ Lite or Rapid & Quick Calculator have ads?

Rapid & Quick Calculator shows ads; Adding Machine 10Key Univ Lite does not.

### Which is updated more often, Adding Machine 10Key Univ Lite or Rapid & Quick Calculator?

Adding Machine 10Key Univ Lite ships an update every 6 weeks, and Rapid & Quick Calculator every 5 months. Most recently, Adding Machine 10Key Univ Lite was updated on August 26, 2026 and Rapid & Quick Calculator on September 28, 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.*