# Submax vs Nudge

The clearest difference is in-app purchases: Nudge at none against Submax's 1. Submax's advantage is update cadence (every 2 days vs weekly) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Submax sells 1 in-app purchase, starting at $3.99 per year. Nudge asks for nothing beyond the download.

Submax ships an update every 2 days, Nudge weekly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Submax | Nudge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Size | 24 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [The University of Kansas](https://appshunter.io/developer/726307325) | [Christopher Peluso](https://appshunter.io/developer/6785135265) |

## What reviewers say

### Submax

[App page](https://appshunter.io/ios/app/submax/id6744069857)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TBRS Submax Yearly Subscription | $3.99 | per year |


### Nudge

[App page](https://appshunter.io/ios/app/nudge-your-step-coach/id6785135263)

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

**In-app purchases:** none


## Frequently asked questions

### Is Submax free?

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

### Is Nudge free?

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

### Do Submax or Nudge have ads?

Neither Submax nor Nudge shows ads.

### Which is updated more often, Submax or Nudge?

Submax ships an update every 2 days, and Nudge weekly. Most recently, Submax was updated on October 6, 2026 and Nudge on October 12, 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.*