# SDM Dialer vs EVENT SPIDER

The clearest difference is update cadence: SDM Dialer at every 3 months against EVENT SPIDER's every 23 months. 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.

SDM Dialer ships an update every 3 months, EVENT SPIDER every 23 months. The most recent releases landed on May 17, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SDM Dialer | EVENT SPIDER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Size | 3 MB | 27 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ISB Corporation](https://appshunter.io/developer/318273730) | [KangYeol Lee](https://appshunter.io/developer/870410380) |

## What reviewers say

### SDM Dialer

[App page](https://appshunter.io/ios/app/sdm-dialer/id751183889)

**In-app purchases:** none


### EVENT SPIDER

[App page](https://appshunter.io/ios/app/event-spider/id1516976529)

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

**In-app purchases:** none


## Frequently asked questions

### Is SDM Dialer free?

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

### Is EVENT SPIDER free?

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

### Do SDM Dialer or EVENT SPIDER have ads?

Neither SDM Dialer nor EVENT SPIDER shows ads.

### Which is updated more often, SDM Dialer or EVENT SPIDER?

SDM Dialer ships an update every 3 months, and EVENT SPIDER every 23 months. Most recently, SDM Dialer was updated on May 17, 2026 and EVENT SPIDER on September 8, 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.*