# Throwback by Loop vs Zync

The clearest difference is in-app purchases: Throwback by Loop at none against Zync's 2. Throwback by Loop also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). Zync's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Zync sells 2 in-app purchases, starting at $1.99 per 7 days. Throwback by Loop asks for nothing beyond the download.

Throwback by Loop ships an update weekly, Zync every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Throwback by Loop | Zync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/throwback-by-loop/id6443691707/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 99 MB | 66 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Loop Social Inc.](https://appshunter.io/developer/1487593678) | [ARYA ROUDI RASHT ABADI](https://appshunter.io/developer/1805574800) |

## What reviewers say

### Throwback by Loop

[App page](https://appshunter.io/ios/app/throwback-by-loop/id6443691707)

This app offers a weekly dose of nostalgia, prompting users to share childhood and teenage photos every Thursday. Outside of Thursdays, users can connect with friends and send anonymous 'Boosts'.

**Highlights:** Weekly photo prompts, Share childhood memories, Send anonymous 'Boosts', Connect with friends, Nostalgia-focused feed

**Features:** macOS Compatibility

**In-app purchases:** none


### Zync

[App page](https://appshunter.io/ios/app/zync-make-plans-with-friends/id6744021630)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zync Plus Weekly | $1.99 | per 7 days |
| Zync Plus: Monthly | $6.99 | per month |


## Frequently asked questions

### Is Throwback by Loop free?

Throwback by Loop is free to download, with no in-app purchases.

### Is Zync free?

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

### Do Throwback by Loop or Zync have ads?

Zync shows ads; Throwback by Loop does not.

### Which is updated more often, Throwback by Loop or Zync?

Throwback by Loop ships an update weekly, and Zync every 3 weeks. Most recently, Throwback by Loop was updated on November 3, 2026 and Zync 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.*