# RLM vs Greatweek.com

The clearest difference is rating: Greatweek.com at 5.0 against RLM's 4.5. Greatweek.com also leads on in-app purchases (none vs 4) and update cadence (weekly vs every 5 weeks). RLM's advantage is ratings volume (18 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. RLM sells 4 in-app purchases, starting at $0.49 per month. Greatweek.com asks for nothing beyond the download.

Greatweek.com holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: RLM has 18 ratings behind it against 1, so its average is the more settled of the two.

RLM ships an update every 5 weeks, Greatweek.com weekly. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | RLM | Greatweek.com |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (18 ratings)](https://appshunter.io/ios/app/rlm-12cx/id1613759385/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greatweekcom/id1662945960/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 32 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [R.L.M. Software](https://appshunter.io/developer/289639238) | [Great Week LLC](https://appshunter.io/developer/1599041995) |

## What reviewers say

### RLM

[App page](https://appshunter.io/ios/app/rlm-12cx/id1613759385)

This app is a powerful financial and business calculator designed for iOS devices, replicating the functionality of the HP-12C with expanded features. It offers comprehensive tools for finance, business calculations, statistics, scientific functions, and unit conversions.

**Highlights:** Finance and business calculations, Amortization schedules, Bond price and yield calculations, Black-Scholes options valuation, Depreciation methods, Currency and unit conversions, Statistical analysis, Programmable functions

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthtly 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 |


### Greatweek.com

[App page](https://appshunter.io/ios/app/greatweekcom/id1662945960)

This app streamlines property development business management. It offers access to multiple lenders for project finance and includes innovative tools for expense management and bookkeeping.

**Highlights:** Project finance access, Expense management, Bookkeeping tools, Business management, Lender access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RLM free?

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

### Is Greatweek.com free?

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

### Which has better reviews, RLM or Greatweek.com?

Greatweek.com is rated higher. RLM averages 4.5 out of 5 from 18 ratings, while Greatweek.com averages 5.0 from 1 ratings.

### Do RLM or Greatweek.com have ads?

Neither RLM nor Greatweek.com shows ads.

### Which is updated more often, RLM or Greatweek.com?

RLM ships an update every 5 weeks, and Greatweek.com weekly. Most recently, RLM was updated on September 26, 2026 and Greatweek.com on September 10, 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.*