# ThusNote vs Silica

The clearest difference is in-app purchases: ThusNote at none against Silica's 3. Silica's advantage is update cadence (every 2 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Silica sells 3 in-app purchases, starting at $1.99 per month. ThusNote asks for nothing beyond the download.

ThusNote ships an update monthly, Silica every 2 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | ThusNote | Silica |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 5 MB | 26 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [灿炎 林](https://appshunter.io/developer/6788204213) | [Taketo Fujimaki](https://appshunter.io/developer/6795041723) |

## What reviewers say

### ThusNote

[App page](https://appshunter.io/ios/app/thusnote/id6788258066)

**In-app purchases:** none


### Silica

[App page](https://appshunter.io/ios/app/silica-location-history/id6795041286)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Silica Pro Monthly | $1.99 | per month |
| Silica Pro Annual | $17.99 | per year |
| Silica Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is ThusNote free?

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

### Is Silica free?

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

### Do ThusNote or Silica have ads?

Neither ThusNote nor Silica shows ads.

### Which is updated more often, ThusNote or Silica?

ThusNote ships an update monthly, and Silica every 2 days. Most recently, ThusNote was updated on November 10, 2026 and Silica on November 10, 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.*