# iCDSS vs Timing Todos

The clearest difference is in-app purchases: iCDSS at none against Timing Todos's 4. iCDSS also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Timing Todos sells 4 in-app purchases, starting at $0.99 per month. iCDSS asks for nothing beyond the download.

iCDSS ships an update monthly, Timing Todos fortnightly. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | iCDSS | Timing Todos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 125 MB | 8 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Ande Medical Technology Co., Ltd.](https://appshunter.io/developer/1464887426) | [子源 董](https://appshunter.io/developer/1701284151) |

## What reviewers say

### iCDSS

[App page](https://appshunter.io/ios/app/icdss/id1619035094)

**Features:** macOS Compatibility

**In-app purchases:** none


### Timing Todos

[App page](https://appshunter.io/ios/app/timing-todos/id6472170099)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Semiannually | $3.99 | per 6 months |
| Yearly | $3.99 | per year |
| Permanent | $7.99 | one-time |


## Frequently asked questions

### Is iCDSS free?

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

### Is Timing Todos free?

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

### Do iCDSS or Timing Todos have ads?

Neither iCDSS nor Timing Todos shows ads.

### Which is updated more often, iCDSS or Timing Todos?

iCDSS ships an update monthly, and Timing Todos fortnightly. Most recently, iCDSS was updated on October 8, 2026 and Timing Todos on October 12, 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.*