# Smart AI Notes vs Approximationist World Clock

The clearest difference is price: Smart AI Notes at Free against Approximationist World Clock's $0.99. Smart AI Notes also leads on update cadence (monthly vs every 2 months) and iOS requirement (15.6 vs 17.0). Approximationist World Clock's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Smart AI Notes is free to download; Approximationist World Clock costs $0.99 up front. Smart AI Notes sells 3 in-app purchases, starting at $6.99 per 7 days. Approximationist World Clock asks for nothing beyond the download.

Smart AI Notes ships an update monthly, Approximationist World Clock every 2 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Smart AI Notes | Approximationist World Clock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/approximationist-world-clock/id6762967230/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Paid |
| Size | 143 MB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Pham Yen](https://appshunter.io/developer/1725409488) | [Simply Useful Apps](https://appshunter.io/developer/321416742) |

## What reviewers say

### Smart AI Notes

[App page](https://appshunter.io/ios/app/smart-ai-notes-speech-to-text/id6752015143)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Ai Week | $6.99 | per 7 days |
| Smart Ai Year | $39.99 | per year |
| Smart Ai Lifetime | $19.99 | one-time |


### Approximationist World Clock

[App page](https://appshunter.io/ios/app/approximationist-world-clock/id6762967230)

This app simplifies understanding global time zones with a focus on approximations rather than exact minutes. It helps users quickly see if a time is suitable for others worldwide, making coordination easier for remote teams, travelers, and families.

**Highlights:** Approximation-first time zone display, Compare multiple cities at a glance, Quick overlap spotting for availability, Human-friendly time descriptions, Time slider functionality, Export/import and share team info

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart AI Notes free?

Smart AI Notes is free to download, with in-app purchases available.

### Is Approximationist World Clock free?

Approximationist World Clock costs $0.99, with no in-app purchases.

### Do Smart AI Notes or Approximationist World Clock have ads?

Smart AI Notes shows ads; Approximationist World Clock does not.

### Which is updated more often, Smart AI Notes or Approximationist World Clock?

Smart AI Notes ships an update monthly, and Approximationist World Clock every 2 months. Most recently, Smart AI Notes was updated on October 11, 2026 and Approximationist World Clock on October 6, 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.*