# CiiMS SOS vs Trace

The clearest difference is update cadence: CiiMS SOS at every 2 months against Trace's every 3 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.

CiiMS SOS ships an update every 2 months, Trace every 3 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | CiiMS SOS | Trace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 111 MB | 93 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SOS-ICT (PTY) LTD](https://appshunter.io/developer/1520000687) | [Trust Provenance](https://appshunter.io/developer/1636425746) |

## What reviewers say

### CiiMS SOS

[App page](https://appshunter.io/ios/app/ciims-sos/id1467876738)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trace

[App page](https://appshunter.io/ios/app/trace-trust-provenance/id6443642219)

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

**In-app purchases:** none


## Frequently asked questions

### Is CiiMS SOS free?

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

### Is Trace free?

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

### Do CiiMS SOS or Trace have ads?

Neither CiiMS SOS nor Trace shows ads.

### Which is updated more often, CiiMS SOS or Trace?

CiiMS SOS ships an update every 2 months, and Trace every 3 months. Most recently, CiiMS SOS was updated on November 3, 2026 and Trace on November 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.*