# Quant Life vs NinDiary

The clearest difference is in-app purchases: Quant Life at none against NinDiary's 1. NinDiary's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. NinDiary sells 1 one-off in-app purchase. Quant Life asks for nothing beyond the download.

## The numbers

| Metric | Quant Life | NinDiary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 3 MB | 29 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [DLC39DEGREE](https://appshunter.io/developer/1870520356) | [鹏 鲁](https://appshunter.io/developer/1522202611) |

## What reviewers say

### Quant Life

[App page](https://appshunter.io/ios/app/quant-life-personal-database/id6791145624)

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

**In-app purchases:** none


### NinDiary

[App page](https://appshunter.io/ios/app/nindiary-journal-and-diary/id6815711544)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Quant Life free?

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

### Is NinDiary free?

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

### Do Quant Life or NinDiary have ads?

Neither Quant Life nor NinDiary shows ads.

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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.*