# cFormula vs To

The clearest difference is in-app purchases: To at none against cFormula's 1. To also leads on ads (none vs shown) and update cadence (every 10 days vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. cFormula sells 1 one-off in-app purchase. To asks for nothing beyond the download.

cFormula ships an update every 5 months, To every 10 days. The most recent releases landed on August 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | cFormula | To |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/to-do-color/id6744034130/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 13 MB | 16 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [疆 边](https://appshunter.io/developer/1124320934) | [Abay Estifanos](https://appshunter.io/developer/1740628750) |

## What reviewers say

### cFormula

[App page](https://appshunter.io/ios/app/cformula/id6475750528)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fully unlock app | $1.99 | one-time |


### To

[App page](https://appshunter.io/ios/app/to-do-color/id6744034130)

A minimalist and fast task manager that visually tracks your to-dos with automatic color changes based on deadlines. Quickly capture ideas and get instant visual cues for what needs your attention, ensuring you never miss a task.

**Highlights:** Automatic color-changing tasks, Customizable reminders and notifications, Visual deadline timeline, Safe delete and recovery, Minimalist and distraction-free interface

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

**In-app purchases:** none


## Frequently asked questions

### Is cFormula free?

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

### Is To free?

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

### Do cFormula or To have ads?

cFormula shows ads; To does not.

### Which is updated more often, cFormula or To?

cFormula ships an update every 5 months, and To every 10 days. Most recently, cFormula was updated on August 25, 2026 and To on September 20, 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.*