# duet.by.me vs SMILIN

duet.by.me and SMILIN are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

duet.by.me ships an update every 3 weeks, SMILIN monthly. Both last shipped on October 25, 2026.

## The numbers

| Metric | duet.by.me | SMILIN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 123 MB | 76 MB |
| Requires iOS | 13.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ARMAN, OOO](https://appshunter.io/developer/1508479610) | [Wuhan Lewei E-Commerce Co., Ltd.](https://appshunter.io/developer/1724141525) |

## What reviewers say

### duet.by.me

[App page](https://appshunter.io/ios/app/duetbyme/id1508481589)

**In-app purchases:** none


### SMILIN

[App page](https://appshunter.io/ios/app/smilin/id6478754469)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is duet.by.me free?

duet.by.me is free to download, with no in-app purchases.

### Is SMILIN free?

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

### Do duet.by.me or SMILIN have ads?

Both duet.by.me and SMILIN show ads.

### Which is updated more often, duet.by.me or SMILIN?

duet.by.me ships an update every 3 weeks, and SMILIN monthly. Most recently, duet.by.me was updated on October 25, 2026 and SMILIN on October 25, 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.*