# IONX Colloidal Silver vs Doinn

The clearest difference is iOS requirement: Doinn at 14.0 against IONX Colloidal Silver's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

IONX Colloidal Silver ships an update every 4 weeks, Doinn every 2 months. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | IONX Colloidal Silver | Doinn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 41 MB | 79 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Andres Salazar](https://appshunter.io/developer/1077155106) | [Doinn.co](https://appshunter.io/developer/1460010000) |

## What reviewers say

### IONX Colloidal Silver

[App page](https://appshunter.io/ios/app/ionx-colloidal-silver/id1077155107)

This iPhone timer app assists in the colloidal silver production process, notifying you upon completion. It provides essential operating instructions, warning labels, warranty information, and troubleshooting guides for a sustainable approach.

**Highlights:** Colloidal silver production timer, Operating instructions, Warning label, Warranty information, Troubleshooting guide

**Features:** macOS Compatibility

**In-app purchases:** none


### Doinn

[App page](https://appshunter.io/ios/app/doinn/id1574899987)

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

**In-app purchases:** none


## Frequently asked questions

### Is IONX Colloidal Silver free?

IONX Colloidal Silver is free to download, with no in-app purchases.

### Is Doinn free?

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

### Do IONX Colloidal Silver or Doinn have ads?

Neither IONX Colloidal Silver nor Doinn shows ads.

### Which is updated more often, IONX Colloidal Silver or Doinn?

IONX Colloidal Silver ships an update every 4 weeks, and Doinn every 2 months. Most recently, IONX Colloidal Silver was updated on June 1, 2026 and Doinn 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.*