# Intermittent vs Orbo

The clearest difference is in-app purchases: Intermittent at none against Orbo's 3. Intermittent also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). Orbo's advantage is update cadence (daily vs every 10 days). On price and ads there is nothing between them.

Both are free to download. Orbo sells 3 in-app purchases, starting at $2.49 per month. Intermittent asks for nothing beyond the download.

Intermittent ships an update every 10 days, Orbo daily. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Intermittent | Orbo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (48 ratings)](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6767781311/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Daily** |
| Monetization | Free | — |
| Size | 39 MB | 28 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Rohit Kumar](https://appshunter.io/developer/1896508140) | [Abdulrahman Almazroua](https://appshunter.io/developer/1872154177) |

## What reviewers say

### Intermittent

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6767781311)

This app tracks your fasting progress by showing real-time biological phases like ketosis and autophagy. It provides science-backed explanations for each stage and supports various fasting protocols without requiring an account or subscription.

**Highlights:** Real-time biological phase tracking (Fed, Lipolysis, Ketosis, Autophagy), Support for multiple fasting protocols (12:12 to 72-hour fasts), Free science library with cited primary sources, Adaptive hydration target, Weight and progress tracking with trend analysis, Private sharing circle with applause-only responses, Home screen widget and cross-device sync

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

**In-app purchases:** none


### Orbo

[App page](https://appshunter.io/ios/app/orbo-intermittent-fasting/id6804488974)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.49 | per month |
| 6 months | $7.79 | per 6 months |
| 12 months | $17.90 | per year |


## Frequently asked questions

### Is Intermittent free?

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

### Is Orbo free?

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

### Do Intermittent or Orbo have ads?

Neither Intermittent nor Orbo shows ads.

### Which is updated more often, Intermittent or Orbo?

Intermittent ships an update every 10 days, and Orbo daily. Most recently, Intermittent was updated on October 22, 2026 and Orbo on October 15, 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.*