# DoE #UseItWisely vs HIMAYA OPAL

The clearest difference is ads: HIMAYA OPAL at none against DoE #UseItWisely's shown. 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.

DoE #UseItWisely ships an update monthly, HIMAYA OPAL every 5 weeks. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DoE #UseItWisely | HIMAYA OPAL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 16 MB | 37 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DoE](https://appshunter.io/developer/1502995914) | [Oman Energy Association](https://appshunter.io/developer/1779017016) |

## What reviewers say

### DoE #UseItWisely

[App page](https://appshunter.io/ios/app/doe-useitwisely/id1547878513)

**Features:** macOS Compatibility

**In-app purchases:** none


### HIMAYA OPAL

[App page](https://appshunter.io/ios/app/himaya-opal/id6738036846)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DoE #UseItWisely free?

DoE #UseItWisely is free to download, with no in-app purchases.

### Is HIMAYA OPAL free?

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

### Do DoE #UseItWisely or HIMAYA OPAL have ads?

DoE #UseItWisely shows ads; HIMAYA OPAL does not.

### Which is updated more often, DoE #UseItWisely or HIMAYA OPAL?

DoE #UseItWisely ships an update monthly, and HIMAYA OPAL every 5 weeks. Most recently, DoE #UseItWisely was updated on October 13, 2026 and HIMAYA OPAL 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.*