# solar123 vs PH

The clearest difference is update cadence: PH at fortnightly against solar123's every 19 months. solar123's advantage is iOS requirement (12.0 vs 15.6). 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.

solar123 ships an update every 19 months, PH fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | solar123 | PH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Fortnightly** |
| Size | 21 MB | 46 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Rockcore Electronic Technology Co.,Ltd](https://appshunter.io/developer/1031556232) | [Suzhou zhongchupuhua Electric Technology Co., Ltd](https://appshunter.io/developer/1673675965) |

## What reviewers say

### solar123

[App page](https://appshunter.io/ios/app/solar123/id1527530207)

**Features:** macOS Compatibility

**In-app purchases:** none


### PH

[App page](https://appshunter.io/ios/app/ph-solar/id6445969426)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is solar123 free?

solar123 is free to download, with no in-app purchases.

### Is PH free?

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

### Do solar123 or PH have ads?

Neither solar123 nor PH shows ads.

### Which is updated more often, solar123 or PH?

solar123 ships an update every 19 months, and PH fortnightly. Most recently, solar123 was updated on October 25, 2026 and PH 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.*