# 10BII Calc HD vs RLM

The clearest difference is review sentiment: 10BII Calc HD at 99% against RLM's 0%. 10BII Calc HD also leads on in-app purchases (none vs 4) and chart position (#29 vs unranked). RLM's advantage is price (Free vs $8.99) and update cadence (every 2 months vs every 5 months). On ads and device support there is nothing between them.

RLM is free to download; 10BII Calc HD costs $8.99 up front. RLM sells 4 in-app purchases, starting at $0.49 per month. 10BII Calc HD asks for nothing beyond the download.

10BII Calc HD ships an update every 5 months, RLM every 2 months. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 10BII Calc HD | RLM |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.9 (3.7K ratings)](https://appshunter.io/ios/app/10bii-calc-hd/id382452060/reviews)** | — |
| Number of ratings | **3.7K** | — |
| Positive reviews | **98.8% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#29** | — |
| Size | 4 MB | 7 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ernest Brock](https://appshunter.io/developer/289555912) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### 10BII Calc HD

[App page](https://appshunter.io/ios/app/10bii-calc-hd/id382452060)

**Currently charting:** #29 Top Paid · Finance (US App Store)

This advanced calculator offers over 100 functions for business, finance, math, and statistics. It simplifies complex calculations like loans, cash flows, and depreciation with an intuitive interface and specialized worksheets. Includes interactive graphs and an audit tape for tracking all computations.

**Highlights:** Over 100 business, finance, math, and statistics functions, Time Value of Money calculations with TVM solver, Cash flow analysis with dedicated editor, Statistical analysis and forecasting, Currency and unit conversions, Interactive graphs and audit tape

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Outstanding app
- 🚀 Great product
- 🚀 Great financial calculator
- 🚀 iPad keyboard support
- 🚀 Best financial calculator app

**What reviewers complain about**

- 🐛 Doesn't retain my stored values in the registers once the app is closed on my IPhone Pro

**Reported bugs**

- Loan payment calculation issue after update

**Requested features**

- RPN mode
- Canadian mortgage support


### RLM

[App page](https://appshunter.io/ios/app/rlm-10bx/id1563019331)

This app simulates a powerful financial calculator, offering extensive tools for business, finance, statistics, and scientific calculations. It provides worksheets for loan amortization, bond pricing, currency exchange, and more, all within an intuitive interface designed for iOS devices.

**Highlights:** Finance worksheets (amortization, bond price, time value of money), Business calculations (bill split, break-even, currency exchange), Cash flow analysis, Statistical functions, Scientific and trigonometric functions, Unit and currency conversions, Date and time calculations, Equation solver

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.49 | per month |
| Semi-Annual Subscription | $2.99 | per 6 months |
| Annual Subscription | $5.99 | per year |
| Lifetime Purchase | $9.99 | one-time |


## Frequently asked questions

### Is 10BII Calc HD free?

10BII Calc HD costs $8.99, with no in-app purchases.

### Is RLM free?

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

### Do 10BII Calc HD or RLM have ads?

Neither 10BII Calc HD nor RLM shows ads.

### Which is updated more often, 10BII Calc HD or RLM?

10BII Calc HD ships an update every 5 months, and RLM every 2 months. Most recently, 10BII Calc HD was updated on September 25, 2026 and RLM on September 12, 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.*