# EKG Updater vs Fun Spectrum Analyzer

The clearest difference is in-app purchases: EKG Updater at none against Fun Spectrum Analyzer's 1. EKG Updater also leads on iOS requirement (15.0 vs 17.0). Fun Spectrum Analyzer's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Fun Spectrum Analyzer sells 1 one-off in-app purchase. EKG Updater asks for nothing beyond the download.

EKG Updater ships an update every 4 months, Fun Spectrum Analyzer every 2 weeks. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | EKG Updater | Fun Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (223 ratings)](https://appshunter.io/ios/app/ekg-updater/id1592355693/reviews)** | — |
| Number of ratings | **223** | — |
| Positive reviews | 14.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 10 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fellow](https://appshunter.io/developer/1369603449) | [peter richards](https://appshunter.io/developer/6807136072) |

## What reviewers say

### EKG Updater

[App page](https://appshunter.io/ios/app/ekg-updater/id1592355693)

This application connects your smart kettle to your home Wi-Fi for automatic firmware and feature updates. Ensure your device always has the latest brewing capabilities and performance enhancements.

**Highlights:** Connects to home Wi-Fi, Automatic firmware updates, Installs latest brewing features, Compatible with Stagg EKG Pro models

**In-app purchases:** none

**What reviewers like**

- 👍 Easy firmware updates
- 🚀 Firmware updates work as expected
- 🚀 App does what it claims to do

**What reviewers complain about**

- 🐛 Firmware updates fail to complete
- 🐛 App doesn't detect or connect to kettle
- 🐛 App provides no useful functionality beyond updates
- 🐛 Buggy and unreliable app experience

**Reported bugs**

- Firmware update process gets stuck
- App fails to detect or connect to kettle
- App crashes or provides no feedback during updates

**Requested features**

- Remote kettle control (turn on/off, set temperature)
- Scheduling and timer functionality
- Improved app design and user experience


### Fun Spectrum Analyzer

[App page](https://appshunter.io/ios/app/fun-spectrum-analyzer/id6807136070)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FSA Full Access Unlock | $2.99 | one-time |


## Frequently asked questions

### Is EKG Updater free?

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

### Is Fun Spectrum Analyzer free?

Fun Spectrum Analyzer is free to download, with in-app purchases available.

### Do EKG Updater or Fun Spectrum Analyzer have ads?

Neither EKG Updater nor Fun Spectrum Analyzer shows ads.

### Which is updated more often, EKG Updater or Fun Spectrum Analyzer?

EKG Updater ships an update every 4 months, and Fun Spectrum Analyzer every 2 weeks. Most recently, EKG Updater was updated on November 7, 2026 and Fun Spectrum Analyzer on November 6, 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.*