# RUCA vs isotanks

RUCA and isotanks are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RUCA ships an update every 2 months, isotanks every 5 weeks. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | RUCA | isotanks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 181 MB | 16 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shilpa Goyal](https://appshunter.io/developer/1369900765) | [ICL](https://appshunter.io/developer/1448123882) |

## What reviewers say

### RUCA

[App page](https://appshunter.io/ios/app/ruca/id6503939900)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### isotanks

[App page](https://appshunter.io/ios/app/isotanks/id6751235009)

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

**In-app purchases:** none


## Frequently asked questions

### Is RUCA free?

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

### Is isotanks free?

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

### Do RUCA or isotanks have ads?

Neither RUCA nor isotanks shows ads.

### Which is updated more often, RUCA or isotanks?

RUCA ships an update every 2 months, and isotanks every 5 weeks. Most recently, RUCA was updated on October 4, 2026 and isotanks 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.*