# MyNumberBlocker vs ThermoThink

The clearest difference is update cadence: ThermoThink at every 2 months against MyNumberBlocker's every 38 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MyNumberBlocker ships an update every 38 months, ThermoThink every 2 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | MyNumberBlocker | ThermoThink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/mynumberblocker/id1288429101/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 2 MB | 10 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gruby Solutions](https://appshunter.io/developer/452918601) | [Acutulus Technologies Inc](https://appshunter.io/developer/1294049355) |

## What reviewers say

### MyNumberBlocker

[App page](https://appshunter.io/ios/app/mynumberblocker/id1288429101)

Block unwanted calls from numbers that share the same prefix as your own. This utility prevents telemarketers from spoofing caller IDs to trick you into answering. It ensures your contacts are not blocked and your call logs remain private.

**Highlights:** Block calls by phone number prefix, Prevents caller ID spoofing, Excludes contacts from blocking, Sends blocked calls to voicemail, Does not send contacts to server

**In-app purchases:** none


### ThermoThink

[App page](https://appshunter.io/ios/app/thermothink/id1294049356)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MyNumberBlocker free?

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

### Is ThermoThink free?

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

### Do MyNumberBlocker or ThermoThink have ads?

Neither MyNumberBlocker nor ThermoThink shows ads.

### Which is updated more often, MyNumberBlocker or ThermoThink?

MyNumberBlocker ships an update every 38 months, and ThermoThink every 2 months. Most recently, MyNumberBlocker was updated on October 24, 2026 and ThermoThink on October 26, 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.*