# SF Dictionary vs PrepMeTalk AI

The clearest difference is in-app purchases: SF Dictionary at none against PrepMeTalk AI's 2. PrepMeTalk AI's advantage is ads (none vs shown) and update cadence (every 4 days vs monthly). On price and device support there is nothing between them.

Both are free to download. PrepMeTalk AI sells 2 in-app purchases, starting at $9.99 per 7 days. SF Dictionary asks for nothing beyond the download.

SF Dictionary ships an update monthly, PrepMeTalk AI every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | SF Dictionary | PrepMeTalk AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Size | 34 MB | 34 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KineticBit Inc.](https://appshunter.io/developer/1886255149) | [Tajinder Kaur](https://appshunter.io/developer/6778813310) |

## What reviewers say

### SF Dictionary

[App page](https://appshunter.io/ios/app/sf-dictionary-cert-exam-prep/id6760790517)

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

**In-app purchases:** none


### PrepMeTalk AI

[App page](https://appshunter.io/ios/app/prepmetalk-ai-interview-prep/id6778813308)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $9.99 | per 7 days |
| Pro Yearly | $99.99 | per year |


## Frequently asked questions

### Is SF Dictionary free?

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

### Is PrepMeTalk AI free?

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

### Do SF Dictionary or PrepMeTalk AI have ads?

SF Dictionary shows ads; PrepMeTalk AI does not.

### Which is updated more often, SF Dictionary or PrepMeTalk AI?

SF Dictionary ships an update monthly, and PrepMeTalk AI every 4 days. Most recently, SF Dictionary was updated on November 5, 2026 and PrepMeTalk AI on November 5, 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.*