# Adding Machine 10Key Universal vs Mainsail Financial Group

The clearest difference is price: Mainsail Financial Group at Free against Adding Machine 10Key Universal's $3.99. Adding Machine 10Key Universal's advantage is chart position (#174 vs unranked) and iOS requirement (12.4 vs 15.5). On update cadence, ads, in-app purchases and device support there is nothing between them.

Mainsail Financial Group is free to download; Adding Machine 10Key Universal costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Adding Machine 10Key Universal | Mainsail Financial Group |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.7 (136 ratings)](https://appshunter.io/ios/app/adding-machine-10key-universal/id579385939/reviews)** | — |
| Number of ratings | **136** | — |
| Positive reviews | 94.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Best chart rank | **#174** | — |
| Size | 23 MB | 141 MB |
| Requires iOS | **12.4** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Silverman](https://appshunter.io/developer/297096643) | [Mainsail Financial Group, LLC](https://appshunter.io/developer/1668443636) |

## What reviewers say

### Adding Machine 10Key Universal

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

**Currently charting:** #174 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- 🐛 Outdated and no support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


### Mainsail Financial Group

[App page](https://appshunter.io/ios/app/mainsail-financial-group/id1668443634)

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

**In-app purchases:** none


## Frequently asked questions

### Is Adding Machine 10Key Universal free?

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

### Is Mainsail Financial Group free?

Mainsail Financial Group is free to download, with no in-app purchases.

### Do Adding Machine 10Key Universal or Mainsail Financial Group have ads?

Neither Adding Machine 10Key Universal nor Mainsail Financial Group shows ads.

### Which is updated more often, Adding Machine 10Key Universal or Mainsail Financial Group?

Adding Machine 10Key Universal ships an update every 2 months, and Mainsail Financial Group every 2 months. Most recently, Adding Machine 10Key Universal was updated on October 18, 2026 and Mainsail Financial Group on October 3, 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.*