# Fill Up Bucket vs CW Decoder

The clearest difference is price: CW Decoder at Free against Fill Up Bucket's $5.00. CW Decoder also leads on ads (none vs shown) and update cadence (every 8 days vs every 15 months). Fill Up Bucket's advantage is rating (4.0 vs 2.0) and in-app purchases (none vs 1). On ratings volume and device support there is nothing between them.

CW Decoder is free to download; Fill Up Bucket costs $5.00 up front. CW Decoder sells 1 one-off in-app purchase. Fill Up Bucket asks for nothing beyond the download.

Fill Up Bucket holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 13% of Fill Up Bucket's written reviews are positive against 0% of CW Decoder's.

Fill Up Bucket ships an update every 15 months, CW Decoder every 8 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Fill Up Bucket | CW Decoder |
| --- | --- | --- |
| Price | $5.00 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/fill-up-bucket/id1643112964/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/cw-decoder/id6748900681/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **12.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 8 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 100 MB | 12 MB |
| Requires iOS | **15.6** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Keiya Chiba](https://appshunter.io/developer/1740986591) |

## What reviewers say

### Fill Up Bucket

[App page](https://appshunter.io/ios/app/fill-up-bucket/id1643112964)

A retro-style puzzle game where you draw lines to redirect water flow into buckets. It offers a simple yet challenging experience for players seeking a brain-teasing challenge.

**Highlights:** Retro LCD style graphics, Draw lines to change water direction, Simple yet challenging gameplay, Puzzle-solving mechanics

**Features:** Vision Pro support

**In-app purchases:** none


### CW Decoder

[App page](https://appshunter.io/ios/app/cw-decoder/id6748900681)

This application uses AI for high-accuracy Morse code decoding. It offers real-time signal processing for steady performance in noisy conditions. A free version allows for short decoding sessions, while a paid upgrade provides unlimited use and advanced features.

**Highlights:** AI-driven decoding, Real-time signal processing, Adjustable speed and thresholds, Decodes letters, numerals, and prosigns, Built-in microphone input, USB-C audio input (full version), Scrollable decoded text

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Version | $2.99 | one-time |


## Frequently asked questions

### Is Fill Up Bucket free?

Fill Up Bucket costs $5.00, with no in-app purchases.

### Is CW Decoder free?

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

### Which has better reviews, Fill Up Bucket or CW Decoder?

Fill Up Bucket is rated higher. Fill Up Bucket averages 4.0 out of 5 from 1 ratings, while CW Decoder averages 2.0 from 1 ratings.

### Do Fill Up Bucket or CW Decoder have ads?

Fill Up Bucket shows ads; CW Decoder does not.

### Which is updated more often, Fill Up Bucket or CW Decoder?

Fill Up Bucket ships an update every 15 months, and CW Decoder every 8 days. Most recently, Fill Up Bucket was updated on October 24, 2026 and CW Decoder on October 11, 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.*