# PreviApp vs Iter

The clearest difference is in-app purchases: PreviApp at none against Iter's 2. PreviApp also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Iter sells 2 in-app purchases, starting at $1.99 per month. PreviApp asks for nothing beyond the download.

PreviApp ships an update every 4 days, Iter every 3 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PreviApp | Iter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 73 MB | 27 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Javier Diaz Fernandez](https://appshunter.io/developer/1809048714) | [Diego Monino](https://appshunter.io/developer/6803560528) |

## What reviewers say

### PreviApp

[App page](https://appshunter.io/ios/app/previapp/id6744716491)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Iter

[App page](https://appshunter.io/ios/app/iter-study-community/id6803560526)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Iter Pro Monthly | $1.99 | per month |
| Iter Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is PreviApp free?

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

### Is Iter free?

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

### Do PreviApp or Iter have ads?

Neither PreviApp nor Iter shows ads.

### Which is updated more often, PreviApp or Iter?

PreviApp ships an update every 4 days, and Iter every 3 weeks. Most recently, PreviApp was updated on October 30, 2026 and Iter on October 29, 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.*