# C3 Timesheet vs Cortis

The clearest difference is in-app purchases: C3 Timesheet at none against Cortis's 6. C3 Timesheet also leads on iOS requirement (12.0 vs 16.0). Cortis's advantage is update cadence (weekly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Cortis sells 6 in-app purchases, starting at $2.99 per month. C3 Timesheet asks for nothing beyond the download.

C3 Timesheet ships an update every 5 months, Cortis weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | C3 Timesheet | Cortis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cortis-on-device-ai-chat/id6760265080/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 79 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [北京网源高科软件有限公司](https://appshunter.io/developer/1085414305) | [Batuhan Ayhan](https://appshunter.io/developer/1880809979) |

## What reviewers say

### C3 Timesheet

[App page](https://appshunter.io/ios/app/c3-timesheet/id1483565579)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cortis

[App page](https://appshunter.io/ios/app/cortis-on-device-ai-chat/id6760265080)

This app provides an on-device AI chatbot that functions entirely offline, requiring no internet connection or account. It integrates with Siri and Shortcuts for hands-free use and automations, and can analyze images locally. The free version offers extensive features, with an optional Pro upgrade for more models and advanced capabilities.

**Highlights:** On-device AI processing, Offline functionality, Siri integration, Shortcuts automation, Image analysis, Multiple AI models, No ads or tracking

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortis Pro Monthly | $2.99 | per month |
| Cortis Pro Weekly | $4.99 | per 7 days |
| Cortis Pro Annual | $9.99 | per year |
| Cortis Pro Annual | $29.99 | per year |
| Cortis Pro | $14.99 | one-time |
| Cortis Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is C3 Timesheet free?

C3 Timesheet is free to download, with no in-app purchases.

### Is Cortis free?

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

### Do C3 Timesheet or Cortis have ads?

Neither C3 Timesheet nor Cortis shows ads.

### Which is updated more often, C3 Timesheet or Cortis?

C3 Timesheet ships an update every 5 months, and Cortis weekly. Most recently, C3 Timesheet was updated on November 3, 2026 and Cortis on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*