# StackLab vs n=1

The clearest difference is in-app purchases: n=1 at none against StackLab's 3. n=1 also leads on update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StackLab sells 3 in-app purchases, starting at $6.99 per month. n=1 asks for nothing beyond the download.

StackLab ships an update fortnightly, n=1 every 4 days. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | StackLab | n=1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 24 MB | 2 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [BigBalli Consulting llc](https://appshunter.io/developer/363765325) | [Gennadii Tsypenko](https://appshunter.io/developer/1812286268) |

## What reviewers say

### StackLab

[App page](https://appshunter.io/ios/app/stacklab-supplement-tracker/id6762133065)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Yearly | $49.99 | per year |
| Lifetime | $99.99 | one-time |


### n=1

[App page](https://appshunter.io/ios/app/n1-longevity-tracker/id6762523189)

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

**In-app purchases:** none


## Frequently asked questions

### Is StackLab free?

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

### Is n=1 free?

n=1 is free to download, with no in-app purchases.

### Do StackLab or n=1 have ads?

Neither StackLab nor n=1 shows ads.

### Which is updated more often, StackLab or n=1?

StackLab ships an update fortnightly, and n=1 every 4 days. Most recently, StackLab was updated on October 6, 2026 and n=1 on September 30, 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.*