# Nistis vs FastKept

Nistis and FastKept are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Nistis sells 3 in-app purchases, starting at $2.99 per month and FastKept sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Nistis | FastKept |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nistis-fasting-timer/id6799102652/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Little Theta LLC](https://appshunter.io/developer/1895438187) | [Timothy Hess](https://appshunter.io/developer/1853679268) |

## What reviewers say

### Nistis

[App page](https://appshunter.io/ios/app/nistis-fasting-timer/id6799102652)

This app helps you track fasting periods with customizable timers and editing capabilities. It offers a free version with core features and an optional one-time purchase for advanced functionalities like Apple Watch integration and health syncing.

**Highlights:** Customizable fasting timers (16:8, OMAD, etc.), Editable fasting history, Stage timeline with common fasting phases, Offline functionality, Optional iCloud sync, Apple Watch app, Home screen and lock screen widgets

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


### FastKept

[App page](https://appshunter.io/ios/app/fastkept-fasting-tracker/id6814683683)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free Supporter Weekly | $0.99 | per 7 days |
| Ad-free Supporter Monthly | $2.99 | per month |
| Ad-free Supporter Yearly | $19.99 | per year |


## Frequently asked questions

### Is Nistis free?

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

### Is FastKept free?

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

### Do Nistis or FastKept have ads?

Neither Nistis nor FastKept 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.*