# number days vs NanoLuna

The clearest difference is in-app purchases: number days at none against NanoLuna's 1. number days also leads on update cadence (weekly vs fortnightly) and iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. NanoLuna sells 1 one-off in-app purchase. number days asks for nothing beyond the download.

number days ships an update weekly, NanoLuna fortnightly. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | number days | NanoLuna |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 135 MB | 11 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [masayuki morishita](https://appshunter.io/developer/470221486) | [恒俭 董](https://appshunter.io/developer/947356968) |

## What reviewers say

### number days

[App page](https://appshunter.io/ios/app/number-days/id476021365)

**Features:** macOS Compatibility

**In-app purchases:** none


### NanoLuna

[App page](https://appshunter.io/ios/app/nanoluna/id6759160468)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $0.99 | one-time |


## Frequently asked questions

### Is number days free?

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

### Is NanoLuna free?

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

### Do number days or NanoLuna have ads?

Neither number days nor NanoLuna shows ads.

### Which is updated more often, number days or NanoLuna?

number days ships an update weekly, and NanoLuna fortnightly. Most recently, number days was updated on November 6, 2026 and NanoLuna on November 11, 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.*