# InsideOut Regulation™ vs Nids Nidra

The clearest difference is update cadence: Nids Nidra at every 11 months against InsideOut Regulation™'s every 28 months. InsideOut Regulation™'s advantage is iOS requirement (11.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

InsideOut Regulation™ ships an update every 28 months, Nids Nidra every 11 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | InsideOut Regulation™ | Nids Nidra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 11 months** |
| Size | 302 MB | 122 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Douglas Fryday](https://appshunter.io/developer/1246226244) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### InsideOut Regulation™

[App page](https://appshunter.io/ios/app/insideout-regulation/id1246226245)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nids Nidra

[App page](https://appshunter.io/ios/app/nids-nidra/id6476524566)

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

**In-app purchases:** none


## Frequently asked questions

### Is InsideOut Regulation™ free?

InsideOut Regulation™ is free to download, with no in-app purchases.

### Is Nids Nidra free?

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

### Do InsideOut Regulation™ or Nids Nidra have ads?

Neither InsideOut Regulation™ nor Nids Nidra shows ads.

### Which is updated more often, InsideOut Regulation™ or Nids Nidra?

InsideOut Regulation™ ships an update every 28 months, and Nids Nidra every 11 months. Most recently, InsideOut Regulation™ was updated on November 6, 2026 and Nids Nidra on November 4, 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.*