# RFCReaderPlus vs Dollar

The clearest difference is price: RFCReaderPlus at Free against Dollar's $0.99. RFCReaderPlus also leads on iOS requirement (11.0 vs 16.0). Dollar's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 3 months). On ads and device support there is nothing between them.

RFCReaderPlus is free to download; Dollar costs $0.99 up front. RFCReaderPlus sells 1 one-off in-app purchase. Dollar asks for nothing beyond the download.

RFCReaderPlus ships an update every 3 months, Dollar every 4 days. The most recent releases landed on June 2, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | RFCReaderPlus | Dollar |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [飞 龙](https://appshunter.io/developer/965611281) | [辉 周](https://appshunter.io/developer/1646169543) |

## What reviewers say

### RFCReaderPlus

[App page](https://appshunter.io/ios/app/rfcreaderplus/id1573574247)

Access and read technical internet standards documents offline. Features include searching, bookmarking, text formatting, and navigation aids for various document formats.

**Highlights:** List all RFC documents, Search RFC by keywords or number, Add RFCs to favorites, Text formatting and styling, Offline RFC reading, Support for PDF and HTML formats

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Functional Version | $1.99 | one-time |


### Dollar

[App page](https://appshunter.io/ios/app/dollar-currency-widget/id6450919353)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is RFCReaderPlus free?

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

### Is Dollar free?

Dollar costs $0.99, with no in-app purchases.

### Do RFCReaderPlus or Dollar have ads?

Neither RFCReaderPlus nor Dollar shows ads.

### Which is updated more often, RFCReaderPlus or Dollar?

RFCReaderPlus ships an update every 3 months, and Dollar every 4 days. Most recently, RFCReaderPlus was updated on June 2, 2026 and Dollar on August 24, 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.*