# iPeriodic for iPhone vs Opposite Words (Thai)

The clearest difference is in-app purchases: Opposite Words (Thai) at none against iPeriodic for iPhone's 1. iPeriodic for iPhone's advantage is ads (none vs shown) and update cadence (every 8 days vs every 27 months). On price and device support there is nothing between them.

Both are free to download. iPeriodic for iPhone sells 1 one-off in-app purchase. Opposite Words (Thai) asks for nothing beyond the download.

iPeriodic for iPhone ships an update every 8 days, Opposite Words (Thai) every 27 months. The most recent releases landed on November 11, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iPeriodic for iPhone | Opposite Words (Thai) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 27 months |
| Size | 16 MB | 33 MB |
| Requires iOS | **6.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thitipong Wongsatho](https://appshunter.io/developer/683911170) | [Kittipong Intaboot](https://appshunter.io/developer/972195994) |

## What reviewers say

### iPeriodic for iPhone

[App page](https://appshunter.io/ios/app/iperiodic-for-iphone/id963558647)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads ($0.99) | $0.99 | one-time |


### Opposite Words (Thai)

[App page](https://appshunter.io/ios/app/opposite-words-thai/id1619625200)

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

**In-app purchases:** none


## Frequently asked questions

### Is iPeriodic for iPhone free?

iPeriodic for iPhone is free to download, with in-app purchases available.

### Is Opposite Words (Thai) free?

Opposite Words (Thai) is free to download, with no in-app purchases.

### Do iPeriodic for iPhone or Opposite Words (Thai) have ads?

Opposite Words (Thai) shows ads; iPeriodic for iPhone does not.

### Which is updated more often, iPeriodic for iPhone or Opposite Words (Thai)?

iPeriodic for iPhone ships an update every 8 days, and Opposite Words (Thai) every 27 months. Most recently, iPeriodic for iPhone was updated on November 11, 2026 and Opposite Words (Thai) 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.*