# Smart RFC vs Billú

The clearest difference is rating: Billú at 4.7 against Smart RFC's 3.7. Smart RFC's advantage is update cadence (every 2 days vs every 5 months) and iOS requirement (9.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Billú holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Smart RFC ships an update every 2 days, Billú every 5 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Smart RFC | Billú |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/smart-rfc/id1393148273/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/billu/id1659675216/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | — | 55.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 months |
| Monetization | Free | Free |
| Size | 30 MB | 108 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [jesus bahena](https://appshunter.io/developer/1393148272) | [Banca Afirme, S.A., Institucion de Banca Multiple, Afirme Grupo Financiero](https://appshunter.io/developer/1482687484) |

## What reviewers say

### Smart RFC

[App page](https://appshunter.io/ios/app/smart-rfc/id1393148273)

Quickly request your invoices by instantly sharing your tax data. Supports multiple RFCs, sending data via email or WhatsApp, and saving a history of requested invoices. You can also attach purchase receipts and provide feedback on service establishments.

**Highlights:** Request invoices quickly, Share tax data instantly, Configure multiple RFCs, Send data via email/WhatsApp, Save invoice history, Attach purchase receipts, Provide service feedback

**Features:** macOS Compatibility

**In-app purchases:** none


### Billú

[App page](https://appshunter.io/ios/app/billu/id1659675216)

Manage your money with a digital debit account offering cashback on purchases and exclusive card designs. Access your finances easily without visiting a branch, with secure online shopping and physical card delivery.

**Highlights:** Debit account opening without branch visit, Digital card for secure online purchases, 1% cashback on participating e-commerce, 35% cashback on U.S.A. merchants, Physical debit card delivered to home, Cash withdrawal at affiliated ATMs without card

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart RFC free?

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

### Is Billú free?

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

### Which has better reviews, Smart RFC or Billú?

Billú is rated higher. Smart RFC averages 3.7 out of 5 from 3 ratings, while Billú averages 4.7 from 3 ratings.

### Do Smart RFC or Billú have ads?

Neither Smart RFC nor Billú shows ads.

### Which is updated more often, Smart RFC or Billú?

Smart RFC ships an update every 2 days, and Billú every 5 months. Most recently, Smart RFC was updated on October 7, 2026 and Billú on October 15, 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.*