# QuantLapse vs Syntesia Ai

The clearest difference is in-app purchases: QuantLapse at none against Syntesia Ai's 9. QuantLapse also leads on rating (5.0 vs 4.6) and iOS requirement (16.0 vs 18.0). Syntesia Ai's advantage is ratings volume (54 vs 2) and update cadence (every 3 days vs weekly). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Syntesia Ai sells 9 in-app purchases, starting at $4.99 per 7 days. QuantLapse asks for nothing beyond the download.

QuantLapse holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Syntesia Ai has 54 ratings behind it against 2, so its average is the more settled of the two.

QuantLapse ships an update weekly, Syntesia Ai every 3 days. The most recent releases landed on October 31, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | QuantLapse | Syntesia Ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quantlapse-timelapse-tracker/id6762167000/reviews)** | [4.6 (54 ratings)](https://appshunter.io/ios/app/syntesia-ai-avatar-creator/id6802666244/reviews) |
| Number of ratings | 2 | **54** |
| Positive reviews | — | 96.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Freemium | Freemium |
| Size | 62 MB | 42 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [BLAKE ASHER SHARP](https://appshunter.io/developer/1893208513) | [Martin Yordanov](https://appshunter.io/developer/6826177738) |

## What reviewers say

### QuantLapse

[App page](https://appshunter.io/ios/app/quantlapse-timelapse-tracker/id6762167000)

This app helps you visualize progress over time by creating timelapse videos from daily photos and optional metric logs. It offers perfect alignment, smart insights, and shareable exports, all while prioritizing user privacy with offline functionality.

**Highlights:** Perfect photo alignment overlay, Log custom metrics alongside photos, Automatic trendlines and insights, Shareable timelapse videos, Offline-first functionality, Privacy-focused data storage

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

**In-app purchases:** none


### Syntesia Ai

[App page](https://appshunter.io/ios/app/syntesia-ai-avatar-creator/id6802666244)

Create engaging videos with digital avatars and natural voices. Choose from a variety of avatars and voices, customize scripts, and generate finished videos easily. Manage your creations and bring your ideas to life.

**Highlights:** Digital avatar selection, Natural-sounding voice library, Customizable script creation, Video generation, Video history management, Multiple voice styles and languages

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Weekly | $6.99 | per 7 days |
| Premium Yearly | $49.99 | per year |
| Premium Yearly | $49.99 | per year |
| Tokens | $9.99 | one-time |
| Tokens | $19.99 | one-time |
| Tokens | $34.99 | one-time |
| Tokens | $59.99 | one-time |
| Tokens | $99.99 | one-time |


## Frequently asked questions

### Is QuantLapse free?

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

### Is Syntesia Ai free?

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

### Which has better reviews, QuantLapse or Syntesia Ai?

QuantLapse is rated higher. QuantLapse averages 5.0 out of 5 from 2 ratings, while Syntesia Ai averages 4.6 from 54 ratings.

### Do QuantLapse or Syntesia Ai have ads?

Neither QuantLapse nor Syntesia Ai shows ads.

### Which is updated more often, QuantLapse or Syntesia Ai?

QuantLapse ships an update weekly, and Syntesia Ai every 3 days. Most recently, QuantLapse was updated on October 31, 2026 and Syntesia Ai on November 8, 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.*