# Undiet vs BuildingRoutines

The clearest difference is in-app purchases: Undiet at none against BuildingRoutines's 8. Undiet also leads on iOS requirement (9.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BuildingRoutines sells 8 in-app purchases, starting at $2.99 per month. Undiet asks for nothing beyond the download.

Undiet ships an update every 6 days, BuildingRoutines weekly. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Undiet | BuildingRoutines |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Size | 17 MB | 31 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Krnic](https://appshunter.io/developer/1803578555) | [Jason Briggs](https://appshunter.io/developer/1769741079) |

## What reviewers say

### Undiet

[App page](https://appshunter.io/ios/app/undiet-your-progress-tracker/id1490849895)

**Features:** macOS Compatibility

**In-app purchases:** none


### BuildingRoutines

[App page](https://appshunter.io/ios/app/buildingroutines/id6773527586)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Analytics Pro | $2.99 | per month |
| Coach (Monthly) | $3.99 | per month |
| Nutrition Pro | $4.99 | per month |
| Building Routines Complete | $6.99 | per month |
| Analytics Pro | $19.99 | per year |
| Coach (Annual) | $29.99 | per year |
| Nutrition Pro | $34.99 | per year |
| Building Routines Complete | $49.99 | per year |


## Frequently asked questions

### Is Undiet free?

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

### Is BuildingRoutines free?

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

### Do Undiet or BuildingRoutines have ads?

Neither Undiet nor BuildingRoutines shows ads.

### Which is updated more often, Undiet or BuildingRoutines?

Undiet ships an update every 6 days, and BuildingRoutines weekly. Most recently, Undiet was updated on October 17, 2026 and BuildingRoutines 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.*