# RLM vs 12C

The clearest difference is review sentiment: RLM at 100% against 12C's 21%. RLM also leads on rating (5.0 vs 3.1) and update cadence (every 2 months vs every 15 months). 12C's advantage is ratings volume (10 vs 2) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. RLM sells 1 one-off in-app purchase and 12C sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RLM holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: 12C has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of RLM's written reviews are positive against 21% of 12C's.

RLM ships an update every 2 months, 12C every 15 months. The most recent releases landed on September 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | RLM | 12C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rlm-ba2/id6443453491/reviews)** | [3.1 (10 ratings)](https://appshunter.io/ios/app/12c-modern/id6444529133/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | **100.0% of reviews** | 21.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 15 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [R.L.M. Software](https://appshunter.io/developer/289639238) | [Anishu, Inc.](https://appshunter.io/developer/306257913) |

## What reviewers say

### RLM

[App page](https://appshunter.io/ios/app/rlm-ba2/id6443453491)

This app offers a comprehensive suite of financial and business calculation tools, inspired by a popular professional calculator. It features specialized worksheets for loans, bonds, options, depreciation, and time value of money, alongside business, cash flow, statistics, and scientific functions.

**Highlights:** Finance Worksheets (Amortization, Bonds, Options), Business Calculations (Break-Even, Bill Split), Cash Flow Analysis, Statistical Functions, Scientific Calculator, Unit and Currency Conversions, Equation Solver

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Full Access | $9.99 | one-time |


### 12C

[App page](https://appshunter.io/ios/app/12c-modern/id6444529133)

This app replicates the functionality of a classic financial calculator, offering modern enhancements like interactive prompts and register views. It provides basic calculator, math, percentage, calendar, and memory functions for free, with advanced financial tools available via a one-time purchase.

**Highlights:** HP 12c functionality reimplementation, Interactive prompts and recipes, Register views for data inspection, Basic calculator functions included, Advanced financial functions via IAP

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12C Modern: full functionality | $5.99 | one-time |


## Frequently asked questions

### Is RLM free?

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

### Is 12C free?

12C is free to download, with in-app purchases available.

### Which has better reviews, RLM or 12C?

RLM is rated higher. RLM averages 5.0 out of 5 from 2 ratings, while 12C averages 3.1 from 10 ratings.

### Do RLM or 12C have ads?

Neither RLM nor 12C shows ads.

### Which is updated more often, RLM or 12C?

RLM ships an update every 2 months, and 12C every 15 months. Most recently, RLM was updated on September 30, 2026 and 12C on October 27, 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.*