# Tytzko App vs GridLab ROI

The clearest difference is in-app purchases: GridLab ROI at none against Tytzko App's 9. GridLab ROI also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Tytzko App's advantage is update cadence (daily vs every 3 days). On price and ads there is nothing between them.

Both are free to download. Tytzko App sells 9 one-off in-app purchases. GridLab ROI asks for nothing beyond the download.

Tytzko App ships an update daily, GridLab ROI every 3 days. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Tytzko App | GridLab ROI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Size | 16 MB | 44 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artem Mykhelson](https://appshunter.io/developer/1520436719) | [Maksym Kovalov](https://appshunter.io/developer/1868068857) |

## What reviewers say

### Tytzko App

[App page](https://appshunter.io/ios/app/tytzko-app/id6747487911)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso | $0.99 | one-time |
| Pizza Slice | $1.99 | one-time |
| Sandwich | $1.99 | one-time |
| Espresso Macchiato | $1.99 | one-time |
| Burger | $1.99 | one-time |
| Coffee + Sandwich | $3.99 | one-time |
| Whole Pizza | $4.99 | one-time |
| Sushi Set | $6.99 | one-time |
| Steak Dinner | $9.99 | one-time |


### GridLab ROI

[App page](https://appshunter.io/ios/app/gridlab-roi/id6759988870)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tytzko App free?

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

### Is GridLab ROI free?

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

### Do Tytzko App or GridLab ROI have ads?

Neither Tytzko App nor GridLab ROI shows ads.

### Which is updated more often, Tytzko App or GridLab ROI?

Tytzko App ships an update daily, and GridLab ROI every 3 days. Most recently, Tytzko App was updated on September 20, 2026 and GridLab ROI on September 21, 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.*