# kaeruF vs Sefin Digital

kaeruF and Sefin Digital are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

kaeruF ships an update monthly, Sefin Digital every 2 months. The most recent releases landed on September 20, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | kaeruF | Sefin Digital |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free |
| Size | 213 MB | 12 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Francisco Wellington](https://appshunter.io/developer/1542094158) | [Fundacao de Ciencia Tecnologia e Inovacao](https://appshunter.io/developer/1362608407) |

## What reviewers say

### kaeruF

[App page](https://appshunter.io/ios/app/kaeruf/id1542094156)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sefin Digital

[App page](https://appshunter.io/ios/app/sefin-digital/id1663546451)

Access municipal tax services virtually, including issuing tax payment slips and managing invoices. This app facilitates communication with the finance department, offering quick access to sought-after services.

**Highlights:** Issue IPTU and ITBI payment slips, Register and search for individual invoices, Consult ongoing processes, Contact finance department support, Access virtual municipal tax services

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

**In-app purchases:** none


## Frequently asked questions

### Is kaeruF free?

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

### Is Sefin Digital free?

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

### Do kaeruF or Sefin Digital have ads?

Neither kaeruF nor Sefin Digital shows ads.

### Which is updated more often, kaeruF or Sefin Digital?

kaeruF ships an update monthly, and Sefin Digital every 2 months. Most recently, kaeruF was updated on September 20, 2026 and Sefin Digital on August 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.*