# Scan Docs vs Calendo

The clearest difference is update cadence: Calendo at every 3 days against Scan Docs's monthly. Scan Docs's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Scan Docs sells 1 in-app purchase, starting at $29.99 per year and Calendo sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Scan Docs ships an update monthly, Calendo every 3 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Scan Docs | Calendo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 13 MB | 83 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ALIAKSEI YAHORAU](https://appshunter.io/developer/1004907760) | [Mikko Salovuori](https://appshunter.io/developer/6817646427) |

## What reviewers say

### Scan Docs

[App page](https://appshunter.io/ios/app/scan-docs-easy-scanner/id1519334321)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $29.99 | per year |


### Calendo

[App page](https://appshunter.io/ios/app/calendo-appointment-booking/id6817646425)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendo Growth | $6.99 | per month |
| Calendo Pro | $11.99 | per month |
| Calendo Growth | $69.99 | per year |
| Calendo Pro | $119.99 | per year |


## Frequently asked questions

### Is Scan Docs free?

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

### Is Calendo free?

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

### Do Scan Docs or Calendo have ads?

Neither Scan Docs nor Calendo shows ads.

### Which is updated more often, Scan Docs or Calendo?

Scan Docs ships an update monthly, and Calendo every 3 days. Most recently, Scan Docs was updated on November 7, 2026 and Calendo 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.*