# ECOPTO vs ctt light

The clearest difference is update cadence: ECOPTO at every 3 days against ctt light's every 2 months. ECOPTO also leads on iOS requirement (8.0 vs 12.3). 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.

ECOPTO ships an update every 3 days, ctt light every 2 months. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ECOPTO | ctt light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Size | 3 MB | 334 MB |
| Requires iOS | **8.0** | 12.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eco-lamps Ltd](https://appshunter.io/developer/1080191960) | [CIAN-TIAN Technology Ltd.](https://appshunter.io/developer/1551880952) |

## What reviewers say

### ECOPTO

[App page](https://appshunter.io/ios/app/ecopto/id1172130666)

**Features:** macOS Compatibility

**In-app purchases:** none


### ctt light

[App page](https://appshunter.io/ios/app/ctt-light/id6745014818)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECOPTO free?

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

### Is ctt light free?

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

### Do ECOPTO or ctt light have ads?

Neither ECOPTO nor ctt light shows ads.

### Which is updated more often, ECOPTO or ctt light?

ECOPTO ships an update every 3 days, and ctt light every 2 months. Most recently, ECOPTO was updated on October 26, 2026 and ctt light 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.*