# Smart Photo Diary vs cal

The clearest difference is update cadence: Smart Photo Diary at every 3 days against cal's every 10 days. Smart Photo Diary also leads on iOS requirement (16.6 vs 26.4). 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.

Smart Photo Diary ships an update every 3 days, cal every 10 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Smart Photo Diary | cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cal-diary/id6766692881/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | — | Free |
| Size | 27 MB | 1 MB |
| Requires iOS | **16.6** | 26.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Daisuke Oba](https://appshunter.io/developer/1825625863) | [Begimay Ahmatova](https://appshunter.io/developer/1896315951) |

## What reviewers say

### Smart Photo Diary

[App page](https://appshunter.io/ios/app/smart-photo-diary/id6748400854)

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

**In-app purchases:** none


### cal

[App page](https://appshunter.io/ios/app/cal-diary/id6766692881)

Capture and revisit your daily memories with photos and notes. This app presents your month as a visual calendar, allowing you to easily view past moments. Your data remains private and stored solely on your device.

**Highlights:** Add photos to any day, Jot down notes for each entry, View month as a photo calendar, Full-screen view of daily memories, Export entries for sharing, Private, on-device storage

**In-app purchases:** none


## Frequently asked questions

### Is Smart Photo Diary free?

Smart Photo Diary is free to download, with no in-app purchases.

### Is cal free?

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

### Do Smart Photo Diary or cal have ads?

Neither Smart Photo Diary nor cal shows ads.

### Which is updated more often, Smart Photo Diary or cal?

Smart Photo Diary ships an update every 3 days, and cal every 10 days. Most recently, Smart Photo Diary was updated on October 28, 2026 and cal on October 31, 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.*