# ZeroExpiry vs Sol

The clearest difference is in-app purchases: ZeroExpiry at none against Sol's 2. ZeroExpiry also leads on update cadence (weekly vs monthly) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Sol sells 2 in-app purchases, starting at $4.99 per month. ZeroExpiry asks for nothing beyond the download.

ZeroExpiry ships an update weekly, Sol monthly. Both last shipped on October 3, 2026.

## The numbers

| Metric | ZeroExpiry | Sol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 55 MB | 17 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Ajay Bollabathini](https://appshunter.io/developer/6775331616) | [Adam Kovacs](https://appshunter.io/developer/1814096456) |

## What reviewers say

### ZeroExpiry

[App page](https://appshunter.io/ios/app/zeroexpiry/id6775331614)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sol

[App page](https://appshunter.io/ios/app/sol-daily-notes-and-documents/id6792342079)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sol Pro Monthly | $4.99 | per month |
| Sol Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is ZeroExpiry free?

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

### Is Sol free?

Sol is free to download, with in-app purchases available.

### Do ZeroExpiry or Sol have ads?

Neither ZeroExpiry nor Sol shows ads.

### Which is updated more often, ZeroExpiry or Sol?

ZeroExpiry ships an update weekly, and Sol monthly. Most recently, ZeroExpiry was updated on October 3, 2026 and Sol on October 3, 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.*