# ImbObras vs TopoGML

The clearest difference is update cadence: TopoGML at every 4 days against ImbObras's every 3 weeks. ImbObras's advantage is iOS requirement (11.0 vs 15.0). 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.

ImbObras ships an update every 3 weeks, TopoGML every 4 days. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ImbObras | TopoGML |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 40 MB | 6 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Imb Vista Software S.L.](https://appshunter.io/developer/1706974678) | [Andres Sanchez Del Toro](https://appshunter.io/developer/6780533814) |

## What reviewers say

### ImbObras

[App page](https://appshunter.io/ios/app/imbobras/id6737119371)

**In-app purchases:** none


### TopoGML

[App page](https://appshunter.io/ios/app/topogml/id6780533811)

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

**In-app purchases:** none


## Frequently asked questions

### Is ImbObras free?

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

### Is TopoGML free?

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

### Do ImbObras or TopoGML have ads?

Neither ImbObras nor TopoGML shows ads.

### Which is updated more often, ImbObras or TopoGML?

ImbObras ships an update every 3 weeks, and TopoGML every 4 days. Most recently, ImbObras was updated on September 8, 2026 and TopoGML on September 13, 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.*