# Zent vs Constancy

The clearest difference is in-app purchases: Constancy at none against Zent's 3. Constancy also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Zent sells 3 in-app purchases, starting at $4.99 per month. Constancy asks for nothing beyond the download.

Zent ships an update every 6 days, Constancy every 10 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Zent | Constancy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 10 days |
| Size | 51 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Put Jaroenrak](https://appshunter.io/developer/1887198517) | [Euon Works Lab Inc](https://appshunter.io/developer/1830404633) |

## What reviewers say

### Zent

[App page](https://appshunter.io/ios/app/zent-discipline/id6761302128)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zent Premium Monthly | $4.99 | per month |
| Zent Premium Yearly | $44.99 | per year |
| Zent Premium Lifetime | $99.99 | one-time |


### Constancy

[App page](https://appshunter.io/ios/app/constancy/id6761448974)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zent free?

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

### Is Constancy free?

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

### Do Zent or Constancy have ads?

Zent shows ads; Constancy does not.

### Which is updated more often, Zent or Constancy?

Zent ships an update every 6 days, and Constancy every 10 days. Most recently, Zent was updated on October 7, 2026 and Constancy on October 7, 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.*