# Fastual vs Nistis

The clearest difference is in-app purchases: Fastual at none against Nistis's 3. Fastual also leads on iOS requirement (15.1 vs 17.0). Nistis's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Nistis sells 3 in-app purchases, starting at $2.99 per month. Fastual asks for nothing beyond the download.

Fastual ships an update every 6 weeks, Nistis every 2 weeks. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Fastual | Nistis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nistis-fasting-timer/id6799102652/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Redjon Prengzi](https://appshunter.io/developer/1807403123) | [Little Theta LLC](https://appshunter.io/developer/1895438187) |

## What reviewers say

### Fastual

[App page](https://appshunter.io/ios/app/fastual-fasting-phase-tracker/id6758233821)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Fastual free?

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

### Is Nistis free?

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

### Do Fastual or Nistis have ads?

Fastual shows ads; Nistis does not.

### Which is updated more often, Fastual or Nistis?

Fastual ships an update every 6 weeks, and Nistis every 2 weeks. Most recently, Fastual was updated on October 9, 2026 and Nistis on October 20, 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.*