# Theta Sync vs Wispr Affirmations

The clearest difference is in-app purchases: Wispr Affirmations at none against Theta Sync's 2. Theta Sync's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Theta Sync sells 2 in-app purchases, starting at $14.99 per month. Wispr Affirmations asks for nothing beyond the download.

Theta Sync ships an update every 2 weeks, Wispr Affirmations fortnightly. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Theta Sync | Wispr Affirmations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 53 MB | 357 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Abel Altaye](https://appshunter.io/developer/1873575365) | [Jerome CHRIST](https://appshunter.io/developer/1896573197) |

## What reviewers say

### Theta Sync

[App page](https://appshunter.io/ios/app/theta-sync/id6758551209)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $14.99 | per month |
| ThetaSync Yearly Premium | $99.99 | per year |


### Wispr Affirmations

[App page](https://appshunter.io/ios/app/wispr-affirmations/id6770899452)

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Theta Sync free?

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

### Is Wispr Affirmations free?

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

### Do Theta Sync or Wispr Affirmations have ads?

Neither Theta Sync nor Wispr Affirmations shows ads.

### Which is updated more often, Theta Sync or Wispr Affirmations?

Theta Sync ships an update every 2 weeks, and Wispr Affirmations fortnightly. Most recently, Theta Sync was updated on October 1, 2026 and Wispr Affirmations on September 29, 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.*