# PureFast vs Koliber

The clearest difference is update cadence: Koliber at every 3 days against PureFast's every 3 months. Koliber also leads on iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PureFast sells 2 in-app purchases, starting at $1.99 per month and Koliber sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PureFast ships an update every 3 months, Koliber every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PureFast | Koliber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koliber/id6764322944/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 89 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Aanuoluwapo Ajayi](https://appshunter.io/developer/1875745335) | [Krzysztof Klimczyk](https://appshunter.io/developer/1895732479) |

## What reviewers say

### PureFast

[App page](https://appshunter.io/ios/app/purefast-intermittent-fasting/id6758918001)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $19.99 | per year |


### Koliber

[App page](https://appshunter.io/ios/app/koliber/id6764322944)

This AI-powered food diary simplifies meal logging through descriptions, photos, voice input, or manual entry. It helps users understand their nutrition, track trends, and set goals with optional AI coaching for general wellness.

**Highlights:** AI-powered food logging, Multiple logging methods (text, photo, voice, scan), Nutrition and macro tracking, Trend analysis (nutrition, weight), Optional AI coach for meal ideas, Private by design, offline logging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $44.99 | per year |


## Frequently asked questions

### Is PureFast free?

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

### Is Koliber free?

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

### Do PureFast or Koliber have ads?

Neither PureFast nor Koliber shows ads.

### Which is updated more often, PureFast or Koliber?

PureFast ships an update every 3 months, and Koliber every 3 days. Most recently, PureFast was updated on October 28, 2026 and Koliber on October 31, 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.*