# Mini Calendar Notes vs Solar Panel Log

Mini Calendar Notes and Solar Panel Log 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.

Mini Calendar Notes ships an update every 2 days, Solar Panel Log every 3 days. Both last shipped on September 30, 2026.

## The numbers

| Metric | Mini Calendar Notes | Solar Panel Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Size | 24 MB | 28 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thi Phuong Ngan Huynh](https://appshunter.io/developer/1859995045) | [HABAN GAMAZ](https://appshunter.io/developer/6803145154) |

## What reviewers say

### Mini Calendar Notes

[App page](https://appshunter.io/ios/app/mini-calendar-notes/id6756309416)

**In-app purchases:** none


### Solar Panel Log

[App page](https://appshunter.io/ios/app/solar-panel-log/id6803145152)

**In-app purchases:** none


## Frequently asked questions

### Is Mini Calendar Notes free?

Mini Calendar Notes is free to download, with no in-app purchases.

### Is Solar Panel Log free?

Solar Panel Log is free to download, with no in-app purchases.

### Do Mini Calendar Notes or Solar Panel Log have ads?

Neither Mini Calendar Notes nor Solar Panel Log shows ads.

### Which is updated more often, Mini Calendar Notes or Solar Panel Log?

Mini Calendar Notes ships an update every 2 days, and Solar Panel Log every 3 days. Most recently, Mini Calendar Notes was updated on September 30, 2026 and Solar Panel Log 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.*