# abc3.me02 vs koban

The clearest difference is ads: koban at none against abc3.me02's shown. abc3.me02's advantage is iOS requirement (9.0 vs 12.0). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on August 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | abc3.me02 | koban |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 29.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 19 MB | 37 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kiyotaka Hori](https://appshunter.io/developer/434217041) | [Kaharu Fukushima](https://appshunter.io/developer/1697128447) |

## What reviewers say

### abc3.me02

[App page](https://appshunter.io/ios/app/abc3me02/id776863194)

Track and visualize your water, sewer, gas, and electric utility bills. Enter usage or charges to generate charts comparing monthly, same-month, and year-over-year consumption. Offers backup, restore, and password protection features.

**Highlights:** Enter utility charges and consumption, Visualize bills with monthly charts, Compare usage across months and years, Backup and restore data, Password lock for security, Export data to Excel format, Compare data to national averages

**In-app purchases:** none


### koban

[App page](https://appshunter.io/ios/app/koban/id6451201458)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is abc3.me02 free?

abc3.me02 is free to download, with no in-app purchases.

### Is koban free?

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

### Do abc3.me02 or koban have ads?

abc3.me02 shows ads; koban does not.

### Which is updated more often, abc3.me02 or koban?

abc3.me02 ships an update every 3 months, and koban every 3 months. Most recently, abc3.me02 was updated on August 19, 2026 and koban on September 17, 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.*