# ThermoThink vs Stop Spam

The clearest difference is in-app purchases: ThermoThink at none against Stop Spam's 4. ThermoThink also leads on ads (none vs shown) and iOS requirement (12.0 vs 18). Stop Spam's advantage is update cadence (fortnightly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Stop Spam sells 4 in-app purchases, starting at $4.99 per month. ThermoThink asks for nothing beyond the download.

ThermoThink ships an update every 2 months, Stop Spam fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ThermoThink | Stop Spam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 10 MB | 21 MB |
| Requires iOS | **12.0** | 18 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Acutulus Technologies Inc](https://appshunter.io/developer/1294049355) | [Serhii Laptii](https://appshunter.io/developer/1802659635) |

## What reviewers say

### ThermoThink

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Stop Spam

[App page](https://appshunter.io/ios/app/stop-spam-call-blocker/id6743408195)

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stop Spam Premium | $4.99 | per month |
| Stop Spam Premium | $7.99 | per 3 months |
| Stop Spam Family Plan | $12.99 | per month |
| Stop Spam Premium | $24.99 | per year |


## Frequently asked questions

### Is ThermoThink free?

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

### Is Stop Spam free?

Stop Spam is free to download, with in-app purchases available.

### Do ThermoThink or Stop Spam have ads?

Stop Spam shows ads; ThermoThink does not.

### Which is updated more often, ThermoThink or Stop Spam?

ThermoThink ships an update every 2 months, and Stop Spam fortnightly. Most recently, ThermoThink was updated on November 3, 2026 and Stop Spam on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*