# Swipner (刷刷 vs KeepSim

The clearest difference is in-app purchases: Swipner (刷刷 at none against KeepSim's 1. Swipner (刷刷 also leads on iOS requirement (13.0 vs 17.0). KeepSim's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. KeepSim sells 1 one-off in-app purchase. Swipner (刷刷 asks for nothing beyond the download.

Swipner (刷刷 ships an update every 4 months, KeepSim every 3 weeks. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Swipner (刷刷 | KeepSim |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 28 MB | 62 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [XING YU SU](https://appshunter.io/developer/528257903) | [洋 闵](https://appshunter.io/developer/6772847404) |

## What reviewers say

### Swipner (刷刷

[App page](https://appshunter.io/ios/app/swipner/id1235728679)

Easily convert foreign currency amounts when traveling abroad or shopping on international websites. Get real-time exchange rates and calculate potential cash back and foreign transaction fees. Receive recommendations for the best credit card networks to use for your purchases.

**Highlights:** Real-time international exchange rates, Cashback and foreign transaction fee calculation, Credit card network recommendations, Simple and intuitive interface

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

**In-app purchases:** none


### KeepSim

[App page](https://appshunter.io/ios/app/keepsim-keep-simesim-active/id6773044270)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeepSim Pro | $4.99 | one-time |


## Frequently asked questions

### Is Swipner (刷刷 free?

Swipner (刷刷 is free to download, with no in-app purchases.

### Is KeepSim free?

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

### Do Swipner (刷刷 or KeepSim have ads?

Swipner (刷刷 shows ads; KeepSim does not.

### Which is updated more often, Swipner (刷刷 or KeepSim?

Swipner (刷刷 ships an update every 4 months, and KeepSim every 3 weeks. Most recently, Swipner (刷刷 was updated on October 8, 2026 and KeepSim on October 7, 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.*