# doxo vs Adding Machine 10Key Universal

The clearest difference is price: doxo at Free against Adding Machine 10Key Universal's $3.99. doxo also leads on ratings volume (1.1K vs 136). Adding Machine 10Key Universal's advantage is rating (4.7 vs 4.2) and review sentiment (94% vs 70%). On update cadence, ads, in-app purchases and device support there is nothing between them.

doxo 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.

Adding Machine 10Key Universal holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: doxo has 1.1K ratings behind it against 136, so its average is the more settled of the two. Written reviews point the same way: 70% of doxo's written reviews are positive against 94% of Adding Machine 10Key Universal's.

doxo ships an update every 3 months, Adding Machine 10Key Universal every 2 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | doxo | Adding Machine 10Key Universal |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.2 (1.1K ratings)](https://appshunter.io/ios/app/doxo-all-in-one-bill-pay/id419248567/reviews) | **[4.7 (136 ratings)](https://appshunter.io/ios/app/adding-machine-10key-universal/id579385939/reviews)** |
| Number of ratings | **1.1K** | 136 |
| Positive reviews | 69.9% of reviews | **94.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#147** |
| Size | 5 MB | 23 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [doxo, Inc.](https://appshunter.io/developer/419248570) | [Richard Silverman](https://appshunter.io/developer/297096643) |

## What reviewers say

### doxo

[App page](https://appshunter.io/ios/app/doxo-all-in-one-bill-pay/id419248567)

Manage all your bills from one secure place. Pay over 120,000 billers with free delivery options and receive unlimited reminders to ensure you never miss a due date. Track payments and expenses in real-time.

**Highlights:** Organize bills in one account, Pay over 120,000 billers, Free payment delivery, Unlimited bill reminders, Multiple payment methods, Real-time tracking

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💳 Convenient bill payment
- 🔔 Helpful reminders
- ⏰ Easy scheduling
- 🔒 Secure payments
- 🗂️ Centralized bill management

**What reviewers complain about**

- 💰 Expensive service fees
- 🤔 Unclear billing information
- 🐛 Unreliable payment processing
- 🔍 Difficult to cancel subscription
- 🤯 Confusing user interface

**Reported bugs**

- Payments not reaching intended biller
- App crashes and freezes
- Account information disappearing without notice

**Requested features**

- Show bill amounts directly in the app
- Integrate with more billers
- Improve customer support responsiveness
- Add biometric authentication options
- Provide better visibility into payment status


### Adding Machine 10Key Universal

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

**Currently charting:** #147 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 doxo free?

doxo is free to download, with no in-app purchases.

### Is Adding Machine 10Key Universal free?

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

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

Adding Machine 10Key Universal is rated higher. doxo averages 4.2 out of 5 from 1.1K ratings, while Adding Machine 10Key Universal averages 4.7 from 136 ratings.

### Do doxo or Adding Machine 10Key Universal have ads?

Neither doxo nor Adding Machine 10Key Universal shows ads.

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

doxo ships an update every 3 months, and Adding Machine 10Key Universal every 2 months. Most recently, doxo was updated on October 24, 2026 and Adding Machine 10Key Universal on October 26, 2026.

---

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