# teXplain vs Vocalello AAC

The clearest difference is in-app purchases: teXplain at none against Vocalello AAC's 3. Vocalello AAC's advantage is update cadence (every 8 months vs every 18 months) and iOS requirement (15.8 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Vocalello AAC sells 3 in-app purchases, starting at $14.99 per month. teXplain asks for nothing beyond the download.

teXplain ships an update every 18 months, Vocalello AAC every 8 months. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | teXplain | Vocalello AAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 8 months** |
| Size | 50 MB | 519 MB |
| Requires iOS | 17.0 | **15.8** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tipli - Tecnologie Informatiche Per L'innovazione ODV](https://appshunter.io/developer/1596563911) | [Aly Hassan](https://appshunter.io/developer/1746842625) |

## What reviewers say

### teXplain

[App page](https://appshunter.io/ios/app/texplain/id6469552575)

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

**In-app purchases:** none


### Vocalello AAC

[App page](https://appshunter.io/ios/app/vocalello-aac/id6737511894)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| yearly | $79.99 | per year |
| One time | $199.99 | one-time |


## Frequently asked questions

### Is teXplain free?

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

### Is Vocalello AAC free?

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

### Do teXplain or Vocalello AAC have ads?

Neither teXplain nor Vocalello AAC shows ads.

### Which is updated more often, teXplain or Vocalello AAC?

teXplain ships an update every 18 months, and Vocalello AAC every 8 months. Most recently, teXplain was updated on October 8, 2026 and Vocalello AAC on September 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.*