# Puppy Clock vs AiON

The clearest difference is in-app purchases: AiON at none against Puppy Clock's 1. AiON also leads on ads (none vs shown). Puppy Clock's advantage is iOS requirement (12.0 vs 16.4). On price, update cadence and device support there is nothing between them.

Both are free to download. Puppy Clock sells 1 one-off in-app purchase. AiON asks for nothing beyond the download.

Puppy Clock ships an update every 3 weeks, AiON monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Puppy Clock | AiON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 49 MB | 85 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [TeLIoT](https://appshunter.io/developer/1315634104) |

## What reviewers say

### Puppy Clock

[App page](https://appshunter.io/ios/app/puppy-clock/id6451078231)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puppy Clock with no ads | $1.99 | one-time |


### AiON

[App page](https://appshunter.io/ios/app/aion/id6749782122)

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

**In-app purchases:** none


## Frequently asked questions

### Is Puppy Clock free?

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

### Is AiON free?

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

### Do Puppy Clock or AiON have ads?

Puppy Clock shows ads; AiON does not.

### Which is updated more often, Puppy Clock or AiON?

Puppy Clock ships an update every 3 weeks, and AiON monthly. Most recently, Puppy Clock was updated on November 3, 2026 and AiON on October 30, 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.*