# RBMIMS vs TopoXY

The clearest difference is in-app purchases: RBMIMS at none against TopoXY's 5. RBMIMS also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. TopoXY sells 5 in-app purchases, starting at $2.99 per 7 days. RBMIMS asks for nothing beyond the download.

RBMIMS ships an update fortnightly, TopoXY every 2 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RBMIMS | TopoXY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 33 MB | 47 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vishang Thakore](https://appshunter.io/developer/1825583212) | [Darius Cirjan](https://appshunter.io/developer/1827010077) |

## What reviewers say

### RBMIMS

[App page](https://appshunter.io/ios/app/rbmims/id6748384131)

**In-app purchases:** none


### TopoXY

[App page](https://appshunter.io/ios/app/topoxy-coordinate-converter/id6758582908)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TopoXY Pro Weekly: GIS Tools | $2.99 | per 7 days |
| TopoXY Pro Monthly: GIS Tools | $6.99 | per month |
| TopoXY Pro Yearly: GIS Tools | $19.99 | per year |
| Stereo 70 Lifetime Offer | $27.99 | one-time |
| TopoXY Pro Lifetime: GIS | $39.99 | one-time |


## Frequently asked questions

### Is RBMIMS free?

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

### Is TopoXY free?

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

### Do RBMIMS or TopoXY have ads?

TopoXY shows ads; RBMIMS does not.

### Which is updated more often, RBMIMS or TopoXY?

RBMIMS ships an update fortnightly, and TopoXY every 2 weeks. Most recently, RBMIMS was updated on October 28, 2026 and TopoXY on October 25, 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.*