# FELLER vs Countdown Days Widget

The clearest difference is update cadence: Countdown Days Widget at fortnightly against FELLER's every 20 months. FELLER's advantage is iOS requirement (8.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

FELLER ships an update every 20 months, Countdown Days Widget fortnightly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | FELLER | Countdown Days Widget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/feller-senssun/id955775923/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 17 MB | 1 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zhongshan Camry Electronic Co., Ltd.](https://appshunter.io/developer/556311830) | [Pedalix](https://appshunter.io/developer/1884931469) |

## What reviewers say

### FELLER

[App page](https://appshunter.io/ios/app/feller-senssun/id955775923)

This app connects to electronic scales via Bluetooth to automatically record and analyze your health data. It helps you manage personal health information, track progress with graphs, and determine if your data meets standard health metrics.

**Highlights:** Bluetooth data transmission with electronic scales, Automatic saving of personal health data, Automatic health data standard judgment, Generation of health data curve graphs, Personal health management, Easy data tracking

**In-app purchases:** none


### Countdown Days Widget

[App page](https://appshunter.io/ios/app/countdown-days-widget/id6760551811)

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

**In-app purchases:** none


## Frequently asked questions

### Is FELLER free?

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

### Is Countdown Days Widget free?

Countdown Days Widget is free to download, with no in-app purchases.

### Do FELLER or Countdown Days Widget have ads?

Neither FELLER nor Countdown Days Widget shows ads.

### Which is updated more often, FELLER or Countdown Days Widget?

FELLER ships an update every 20 months, and Countdown Days Widget fortnightly. Most recently, FELLER was updated on October 24, 2026 and Countdown Days Widget on October 14, 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.*