# Aergia vs MadStax

The clearest difference is iOS requirement: MadStax at 15.1 against Aergia's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Aergia sells 4 in-app purchases, starting at $2.99 per 7 days and MadStax sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Aergia ships an update every 3 weeks, MadStax monthly. The most recent releases landed on October 31, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Aergia | MadStax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/madstax/id6759919705/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Freemium |
| Size | 8 MB | 27 MB |
| Requires iOS | 18.1 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Kurganov](https://appshunter.io/developer/1840833844) | [Mariam Shakir](https://appshunter.io/developer/1881650989) |

## What reviewers say

### Aergia

[App page](https://appshunter.io/ios/app/aergia-screen-time-control/id6758281335)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aergia Premium Weekly | $2.99 | per 7 days |
| Aergia Premium Monthly | $3.99 | per month |
| Aergia Premium Annual Special Offer | $24.99 | per year |
| Aergia Premium Annual | $34.99 | per year |


### MadStax

[App page](https://appshunter.io/ios/app/madstax/id6759919705)

Build good habits and break bad ones with this minimal tracker. It offers a clean interface, flexible scheduling, and visual progress tracking. Data is stored locally, ensuring privacy and a distraction-free experience.

**Highlights:** Track up to 3 habits free, Unlimited habits with one-time Pro purchase, GitHub-style calendar for streak visualization, Flexible daily, weekday, weekend, or custom scheduling, Multiple completions per day, Minimalist distraction-free mode, Local data storage for privacy

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MadStax Pro | $4.99 | one-time |


## Frequently asked questions

### Is Aergia free?

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

### Is MadStax free?

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

### Do Aergia or MadStax have ads?

Neither Aergia nor MadStax shows ads.

### Which is updated more often, Aergia or MadStax?

Aergia ships an update every 3 weeks, and MadStax monthly. Most recently, Aergia was updated on October 31, 2026 and MadStax on October 5, 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.*