# NightFlow vs AI Calorie Tracker

The clearest difference is iOS requirement: NightFlow at 14.0 against AI Calorie Tracker's 16.4. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NightFlow sells 3 in-app purchases, starting at $0.99 per month and AI Calorie Tracker sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | NightFlow | AI Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 142 MB | 57 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [FlyWork Ventures](https://appshunter.io/developer/1853116400) | [Hangzhou PixelBeat Technology](https://appshunter.io/developer/1852154949) |

## What reviewers say

### NightFlow

[App page](https://appshunter.io/ios/app/nightflow-tracker-for-sleep/id6761462210)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NightFlow Premium | $0.99 | per month |
| Nightflow Premium | $1.99 | per month |
| Nightflow Premium | $9.99 | per year |


### AI Calorie Tracker

[App page](https://appshunter.io/ios/app/ai-calorie-tracker-hami/id6789098786)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hami Pro Weekly | $6.99 | per 7 days |
| Hami Pro 3-Month | $23.99 | per 3 months |
| Hami Pro 6-Month | $39.99 | per 6 months |
| Hami Pro Yearly | $79.99 | per year |


## Frequently asked questions

### Is NightFlow free?

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

### Is AI Calorie Tracker free?

AI Calorie Tracker is free to download, with in-app purchases available.

### Do NightFlow or AI Calorie Tracker have ads?

Neither NightFlow nor AI Calorie Tracker 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.*