# Impress vs Waves

The clearest difference is price: Impress at Free against Waves's $1.99. Impress also leads on in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Impress is free to download; Waves costs $1.99 up front. Waves sells 1 one-off in-app purchase. Impress asks for nothing beyond the download.

Impress ships an update fortnightly, Waves every 4 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Impress | Waves |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (257 ratings)](https://appshunter.io/ios/app/impress/id1549666197/reviews)** | — |
| Number of ratings | **257** | — |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free | — |
| Size | 152 MB | 2 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 12+ |
| Developer | [Smile2Impress SL](https://appshunter.io/developer/1549666199) | [Youssef Ziat](https://appshunter.io/developer/1871790298) |

## What reviewers say

### Impress

[App page](https://appshunter.io/ios/app/impress/id1549666197)

This app facilitates clear aligner orthodontic treatment by allowing patients to track progress and communicate with their orthodontist. It provides guidance, reminders, and photo submission features to streamline the straightening process and reduce in-clinic visits.

**Highlights:** Photo submission for progress tracking, Step-by-step treatment guidance, Orthodontist reminders and recommendations, Aligner change notifications, Direct chat with orthodontist, Reduced in-clinic visits

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### Waves

[App page](https://appshunter.io/ios/app/waves-contraction-timer/id6797129633)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Waves Complete | $14.99 | one-time |


## Frequently asked questions

### Is Impress free?

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

### Is Waves free?

Waves costs $1.99, and also offers in-app purchases.

### Do Impress or Waves have ads?

Neither Impress nor Waves shows ads.

### Which is updated more often, Impress or Waves?

Impress ships an update fortnightly, and Waves every 4 weeks. Most recently, Impress was updated on October 7, 2026 and Waves on October 10, 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.*