# OptimiDoc Mobile vs Levin

The clearest difference is in-app purchases: OptimiDoc Mobile at none against Levin's 1. OptimiDoc Mobile also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.1). Levin's advantage is update cadence (every 10 days vs every 8 months). On price and device support there is nothing between them.

Both are free to download. Levin sells 1 in-app purchase, starting at $3.99 per month. OptimiDoc Mobile asks for nothing beyond the download.

OptimiDoc Mobile ships an update every 8 months, Levin every 10 days. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | OptimiDoc Mobile | Levin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 10 days** |
| Size | 10 MB | 87 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OptimiDoc s. r. o.](https://appshunter.io/developer/1081320058) | [JANNIS ALEXANDER BUSCH](https://appshunter.io/developer/1848328281) |

## What reviewers say

### OptimiDoc Mobile

[App page](https://appshunter.io/ios/app/optimidoc-mobile/id1081320059)

**Features:** macOS Compatibility

**In-app purchases:** none


### Levin

[App page](https://appshunter.io/ios/app/levin-start-thinking/id6754452255)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Levin Plus | $3.99 | per month |


## Frequently asked questions

### Is OptimiDoc Mobile free?

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

### Is Levin free?

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

### Do OptimiDoc Mobile or Levin have ads?

Levin shows ads; OptimiDoc Mobile does not.

### Which is updated more often, OptimiDoc Mobile or Levin?

OptimiDoc Mobile ships an update every 8 months, and Levin every 10 days. Most recently, OptimiDoc Mobile was updated on September 23, 2026 and Levin on September 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*