# Nice Calc vs Adding Machine 10Key Universal

Nice Calc and Adding Machine 10Key Universal both sit at 4.8 stars, but that hides the real split: 94% of Adding Machine 10Key Universal's written reviews are positive against 44% of Nice Calc's. Adding Machine 10Key Universal also leads on in-app purchases (none vs 1) and chart position (#156 vs unranked). Nice Calc's advantage is price (Free vs $3.99) and update cadence (every 2 weeks vs every 2 months). On rating, ads and device support there is nothing between them.

Nice Calc is free to download; Adding Machine 10Key Universal costs $3.99 up front. Nice Calc sells 1 one-off in-app purchase. Adding Machine 10Key Universal asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Nice Calc against 4.7 for Adding Machine 10Key Universal. Both are backed by a comparable volume of ratings — 457 and 134 respectively. Written reviews are what separate them: 44% of Nice Calc's written reviews are positive against 94% of Adding Machine 10Key Universal's.

Nice Calc ships an update every 2 weeks, Adding Machine 10Key Universal every 2 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Nice Calc | Adding Machine 10Key Universal |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.8 (457 ratings)](https://appshunter.io/ios/app/nice-calc/id386326778/reviews)** | [4.7 (134 ratings)](https://appshunter.io/ios/app/adding-machine-10key-universal/id579385939/reviews) |
| Number of ratings | **457** | 134 |
| Positive reviews | 44.4% of reviews | **94.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#156** |
| Size | 11 MB | 23 MB |
| Requires iOS | 17.6 | **12.4** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chepe Nicoli](https://appshunter.io/developer/377286026) | [Richard Silverman](https://appshunter.io/developer/297096643) |

## What reviewers say

### Nice Calc

[App page](https://appshunter.io/ios/app/nice-calc/id386326778)

This app calculates percentages and taxes with a single touch. It allows users to customize the interface with different skins and offers a premium version with a currency converter and dual calculator functionality.

**Highlights:** Calculate percentage and tax with one touch, View tax already added, Change interface skins, Currency converter (premium), Dual calculator (premium), Share results

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Collection | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 💡 Dual calculator feature (side-by-side on iPad)
- 🔢 Clear display of all numbers and calculations
- ⚙️ Useful tax calculation key
- 📊 Percentage calculation functionality

**What reviewers complain about**

- 🐛 App crashes frequently on launch
- 🐛 App closes unexpectedly during use
- 💸 Removed features now require paid upgrade
- 😞 Poor customer support and feedback channels
- 🔢 Incorrect calculation results

**Reported bugs**

- Division function produces incorrect results
- Multiplication calculations fail or produce wrong answers
- App crashes when sound is set to zero
- Black screen with numbers displayed
- Crashes on divide key press

**Requested features**

- Memory buttons for calculations
- Full-screen option for iPad mini
- Dollar sign currency formatting
- Keyboard click sound effects
- Number formatting with commas for readability


### Adding Machine 10Key Universal

[App page](https://appshunter.io/ios/app/adding-machine-10key-universal/id579385939)

**Currently charting:** #156 Top Paid · Finance (US App Store)

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 review and edit entries on a digital paper tape. Users can save, export, and print their calculation tapes.

**Highlights:** 10-key adding machine emulation, Reversed operator entry, Percentage calculation, Digital paper tape with editing, Save and export tapes (PDF), TypeTone audio feedback (iPad)

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🧮 Acts like an adding machine
- 🧾 Digital tape for review
- 🖨️ Can print tape
- 💾 Can save/export results

**What reviewers complain about**

- 🐛 Outdated and no support
- 🐛 Doesn't work for new iPad
- 🐛 Total only shows non-zero decimals
- 🐛 Ridiculous method to clear tape
- 🐛 % key not functional

**Reported bugs**

- Cannot save taped
- Cannot export results
- Does not work for new iPad
- Total only shows digits after the decimal that aren't zero
- Method to clear the tape is ridiculous

**Requested features**

- Add widget
- Add realistic sounds
- Add iCloud sync
- Improve tape clearing method
- Clarify functionality of % and +/- keys


## Frequently asked questions

### Is Nice Calc free?

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

### Is Adding Machine 10Key Universal free?

Adding Machine 10Key Universal costs $3.99, with no in-app purchases.

### Which has better reviews, Nice Calc or Adding Machine 10Key Universal?

Nice Calc is rated higher. Nice Calc averages 4.8 out of 5 from 457 ratings, while Adding Machine 10Key Universal averages 4.7 from 134 ratings.

### Do Nice Calc or Adding Machine 10Key Universal have ads?

Neither Nice Calc nor Adding Machine 10Key Universal shows ads.

### Which is updated more often, Nice Calc or Adding Machine 10Key Universal?

Nice Calc ships an update every 2 weeks, and Adding Machine 10Key Universal every 2 months. Most recently, Nice Calc was updated on October 7, 2026 and Adding Machine 10Key Universal on October 13, 2026.

---

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