# Temperature Converter vs Eco

The clearest difference is in-app purchases: Eco at none against Temperature Converter's 3. Eco also leads on update cadence (every 5 weeks vs every 6 months) and rating (5.0 vs 4.8). Temperature Converter's advantage is ratings volume (6.3K vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Temperature Converter sells 3 one-off in-app purchases. Eco asks for nothing beyond the download.

Eco holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Temperature Converter has 6.3K ratings behind it against 2, so its average is the more settled of the two.

Temperature Converter ships an update every 6 months, Eco every 5 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Temperature Converter | Eco |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6.3K ratings)](https://appshunter.io/ios/app/temperature-converter/id449608609/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/eco-logical/id6751570953/reviews)** |
| Number of ratings | **6.3K** | 2 |
| Positive reviews | 91.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 45 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [ECO-LOGICAL LLC](https://appshunter.io/developer/1835852179) |

## What reviewers say

### Temperature Converter

[App page](https://appshunter.io/ios/app/temperature-converter/id449608609)

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a clean and intuitive interface. This utility app offers quick and accurate conversions for everyday use. Ads are present but can be removed via a one-time purchase.

**Highlights:** Celsius conversion, Fahrenheit conversion, Kelvin conversion, User-friendly interface, Ad removal option

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Reduced | $0.99 | one-time |
| Upgrade | $1.99 | one-time |
| Upgrade Hero | $3.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Accurate and fast conversions
- 💡 Useful for international communication
- 🚀 Excellent app for the job
- 👍 Straightforward and effective

**What reviewers complain about**

- 🔍 Needs more customization options
- 💰 Too many ads
- 🔍 Inaccurate temperature calculations

**Reported bugs**

- Inaccurate Kelvin temperature conversions
- Occasional crashes or freezes

**Requested features**

- Add Rankine temperature scale
- Increase font size for better readability
- Provide color customization options


### Eco

[App page](https://appshunter.io/ios/app/eco-logical/id6751570953)

Control your heat pump water heater remotely. Adjust temperature, monitor energy use, and manage system performance with multiple operating modes and custom scheduling. Optimize for efficiency and lower costs.

**Highlights:** Remote temperature adjustment, Energy usage monitoring, Multiple operating modes (Eco, Turbo, Hybrid, etc.), Custom scheduling, Time-of-use optimization, System status and diagnostics

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

**In-app purchases:** none


## Frequently asked questions

### Is Temperature Converter free?

Temperature Converter is free to download, with in-app purchases available.

### Is Eco free?

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

### Which has better reviews, Temperature Converter or Eco?

Eco is rated higher. Temperature Converter averages 4.8 out of 5 from 6.3K ratings, while Eco averages 5.0 from 2 ratings.

### Do Temperature Converter or Eco have ads?

Neither Temperature Converter nor Eco shows ads.

### Which is updated more often, Temperature Converter or Eco?

Temperature Converter ships an update every 6 months, and Eco every 5 weeks. Most recently, Temperature Converter was updated on November 6, 2026 and Eco on November 5, 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.*