# C1DO1 vs Doc

The clearest difference is update cadence: C1DO1 at fortnightly against Doc's every 5 weeks. C1DO1 also leads on iOS requirement (14.0 vs 18.5). 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.

C1DO1 ships an update fortnightly, Doc every 5 weeks. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | C1DO1 | Doc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 6 MB | 45 MB |
| Requires iOS | **14.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [VSB Tecnologias Limitada](https://appshunter.io/developer/1359457345) | [Servicio de Atención Crítica S.A](https://appshunter.io/developer/1825148409) |

## What reviewers say

### C1DO1

[App page](https://appshunter.io/ios/app/c1do1/id1477623946)

**Features:** macOS Compatibility

**In-app purchases:** none


### Doc

[App page](https://appshunter.io/ios/app/doc-digital/id6748314813)

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

**In-app purchases:** none


## Frequently asked questions

### Is C1DO1 free?

C1DO1 is free to download, with no in-app purchases.

### Is Doc free?

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

### Do C1DO1 or Doc have ads?

Neither C1DO1 nor Doc shows ads.

### Which is updated more often, C1DO1 or Doc?

C1DO1 ships an update fortnightly, and Doc every 5 weeks. Most recently, C1DO1 was updated on October 6, 2026 and Doc on October 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.*