# Neckle vs Flow Fasting Tracker

The clearest difference is in-app purchases: Neckle at none against Flow Fasting Tracker's 2. Flow Fasting Tracker's advantage is update cadence (every 10 days vs every 2 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Flow Fasting Tracker sells 2 in-app purchases, starting at $7.99 per month. Neckle asks for nothing beyond the download.

Neckle ships an update every 2 months, Flow Fasting Tracker every 10 days. The most recent releases landed on November 4, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Neckle | Flow Fasting Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 2 MB | 16 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yune Cho](https://appshunter.io/developer/1739032954) | [Kristina Kozicynaite](https://appshunter.io/developer/1882882099) |

## What reviewers say

### Neckle

[App page](https://appshunter.io/ios/app/neckle/id6742444201)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flow Fasting Tracker

[App page](https://appshunter.io/ios/app/flow-fasting-tracker/id6776109275)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Neckle free?

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

### Is Flow Fasting Tracker free?

Flow Fasting Tracker is free to download, with in-app purchases available.

### Do Neckle or Flow Fasting Tracker have ads?

Neither Neckle nor Flow Fasting Tracker shows ads.

### Which is updated more often, Neckle or Flow Fasting Tracker?

Neckle ships an update every 2 months, and Flow Fasting Tracker every 10 days. Most recently, Neckle was updated on November 4, 2026 and Flow Fasting Tracker on November 13, 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.*